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FAQ Hypex


OEM account

OEM products are exclusively available to legally registered manufacturers of audio applications. Prior to purchasing modules from our OEM range, you are required to provide your company details for evaluation. Upon successful evaluation, you will be eligible to purchase OEM modules.

OEM products are also available to legally registered audio repair businesses.
OEM parts are exclusively available to legally registered OEM customers and audio repair businesses only.
Yes, OEM customers are eligible to purchase DIYclassD products.
Please contact the original manufacturer of your application. If they are unable to service your device, you may consider reaching out to a licensed repair service. Even if you have purchased a product containing Hypex components, you are not eligible to purchase OEM parts directly; however, a licensed audio repair business can do so.

Online ordering

An out-of-stock notification will be displayed on each product page, directly beneath the price information section. When a product is out of stock, we will provide the expected shipping date for backorders in the same location.

Products that are currently out of stock can be ordered. Hypex Electronics will ship your order as soon as new stock is received.

Multiple reasons could delay the shipment of your order:

a. Has your payment been received? If you wish to verify this with us, please contact us via the contact form and include your order number as a reference.

b. Are the parts you ordered in stock? We make every effort to maintain adequate stock levels. If you wish to check the current stock availability, please contact us through the contact form and provide your order number as a reference.


When your order is shipped via UPS, you will receive an email from UPS on the same day with tracking information. If you have not received an email from UPS, please verify your email address with us. If your order is shipped with a different courier, the provision of tracking information will depend on the service provided by the forwarder. Should you require tracking information, you may always contact us via the contact form and include your order number as a reference.

All shipping charges are invoiced by Hypex. However, please note that additional import duties or charges may apply, depending on your country. As the customer is responsible for all taxes and duties, we recommend contacting your local customs office for further information.

With your parcel, you will find a packing slip containing the full details of your order and its items. Any product(s) not included in this shipment will be listed as backordered on the packing slip. If available, an indication of the next shipping date will be provided.
We take great care with our customers' orders, as we understand how frustrating it can be to receive the wrong item, especially when you are urgently awaiting your order. To ensure quick processing and shipping, please contact sales@hypex.nl at your earliest convenience to arrange an exchange.
If you are unsure about what you need to order, please allow us to assist you in finding the ideal solution for your application. Visit our "Application" page for more information.
In our webshop, we offer the following payment options:

a. Bank transfer / Wire transfer
b. Credit card
c. PayPal (+3.5%)
d. iDEAL (available only in the Netherlands)


Shipping

When all items in your order are in stock, your package will leave our warehouse within 1-6 working days. If a product is out of stock, we make every effort to keep you informed through our webshop. Shipping time depends on the chosen service and the destination of the parcel.
As Hypex is responsible for ensuring the safe shipment of all orders, we have chosen UPS as our primary shipping partner. You can select the service that best suits your needs. UPS has proven to be the most reliable and secure option for us. If you have an account with another courier, we can arrange shipping through that forwarder at your account and responsibility, or ship ex-works.

Once your order has been shipped, you will receive an email from UPS containing the tracking details.

The amount of import duties depends on your country. As the customer is responsible for all taxes and duties, we recommend contacting your local customs office for more information.

As long as your previous order has not yet left the warehouse and is not packed, you are able to combine multiple orders into one shipment. Once your order is processed, we cannot add any new orders to the shipment. In such cases, please contact sales@hypex.nl at your earliest convenience.

Shipping costs vary for each customer and order and are calculated based on a daily rate. To obtain an accurate calculation of shipping costs, please log in and create an order to view the shipping charges directly, with no further obligation.
Have you received a notification from UPS? Please contact sales@hypex.nl if any action is required on our part.
You will receive a PDF invoice once your order has been shipped. If you have not received your invoice, please verify your email address with us. For any invoice-related inquiries, please contact sales@hypex.nl.
Orders can be placed from anywhere in the world. Our shipping services offer worldwide coverage.

Warranty and returns

Hypex Electronics warrants its devices for a period of two years (B2C) from the original date of purchase against defects in workmanship or materials under normal use. The business-to-business (B2B) warranty is limited to one year.

The warranty covers functional parts that affect the operation of the device. It does not cover cosmetic deterioration due to normal wear and tear, or damage resulting from accidents, misuse, or neglect. Any attempt to modify or disassemble the device (or its accessories) will void the warranty.

Did you order products but change your mind, or order the wrong item?
Please contact sales@hypex.nl within the 14-day return period to request a return or exchange. You will receive a return label for your package. Please note that we do not accept returns without an official return label.

We consider ourselves to be very flexible regarding this matter and are also happy to offer repair services for products that are outside the warranty period. Repair services can be requested for products that are no older than 5 years and are still within our product range. Please note that repair costs must be paid before the repaired product is returned. To request repair service for a legacy product, please contact support@hypex.nl.

General OEM Product Support

The OEM UcD® Family: World-renowned, top-quality amplifier modules, ideal for use in multichannel applications. With a wide range of power ratings and compact form factors, these modules are designed for easy integration into multichannel amplifier setups, especially when paired with our Switch Mode Power Supplies. Available from 32 channels at 100W to 4 channels at 2500W, and everything in between.

The OEM NCORE® Family: High-end amplifier modules, ideal for premium power amplifiers when paired with our Switch Mode Power Supplies. These amplifier modules are also suitable for building high-end touring amplifiers.
With a minimum of 2x better noise reduction and Total Harmonic Distortion (THD) compared to the NCORE®, our eXceptional NCOREx® technology is the solution for your future high-end audio products. Focused on delivering superior audio performance and enhanced functionality, the NCOREx® OEM modules are ideal for mono, stereo, multichannel, and active speaker applications that demand nothing but the best.
An SMPS (Switch Mode Power Supply) is a high-efficiency power supply specifically designed for use with our amplifier modules from the UcD™ and NCORE® families. These power supplies are suitable for mono and stereo setups, as well as multichannel applications.

The Mains Powered NCORE® Family is a premium all-in-one amplifier solution. These modules feature one or two amplifier channels with power ratings ranging from 125W to 500W per channel, integrated with a Switch Mode Power Supply. They are ideal for use in high-quality HiFi mono or stereo amplifiers, as well as musical instrument amplifiers. Easy to integrate, they are also compatible with the NC100HF extension amplifier, specifically designed for tweeter applications. These modules enable the creation of an active 3-way setup with ease.

The NCORE® Active Speaker Family is specifically designed for professional active 2-way loudspeakers. The integration of an asymmetric amplifier and a Switch Mode Power Supply on a single board is the key to easy integration. Unlike our other amplifier solutions, these modules are tuned for optimal performance in 8-ohm applications.
A Digital Signal Processor (DSP) is a platform used for managing signal processing in applications such as active loudspeakers, pre-amplifiers, or integrated amplifiers.
A Fusion Amp is an aluminum plate that houses a mounted DSP and one, two, or three amplifiers with an integrated power supply. It is designed for use in active loudspeakers and subwoofers, and is also referred to as a plate amplifier.
Our products are intended solely for audio reproduction. Use in any other application is not supported and is at your own risk.
A Class-D amplifier, or switching amplifier, is an electronic amplifier in which the amplifying devices (typically MOSFETs) function as electronic switches, rather than linear gain devices as in other types of amplifiers. These amplifiers operate by rapidly switching between the supply rails, with a modulator using techniques such as pulse width modulation, pulse density modulation, or related methods to encode the audio input into a pulse train. The audio is then passed through a low-pass filter into the loudspeaker, while the high-frequency pulses (which can reach up to 6 MHz) are blocked. Since the output transistor pairs are never conducting simultaneously, there is no alternate path for current flow other than through the low-pass filter and loudspeaker, allowing efficiency to exceed 90%.
In principle, Hypex amplifiers are compatible with any loudspeaker, provided they are correctly matched. Our recommendation is to use an amplifier that is capable of delivering slightly more power than what your speakers require. While it is not necessary to have an extremely powerful amplifier, it is important to select a module that can provide the power your speakers can handle. Using an undersized amplifier may result in it operating at maximum capacity continuously, which can lead to clipping and potentially damage your audio equipment.

For our OEM customers, we offer personalized guidance, as each project has its unique requirements. Please contact our sales department via email at sales@hypex.nl for assistance.

Our "Application" page provides an overview of the available solutions we offer.

Technical support

To drive one of the modules 180 degrees out of phase, simply swap the negative and positive input signal wires. Connect the loudspeaker between both positive loudspeaker outputs of the amplifiers, and place a 100nF/200V capacitor across the loudspeaker terminals on the amplifier side. This setup is most suitable for 8-ohm loads, as each amplifier "sees" 4 ohms when an 8-ohm load is attached. A 4-ohm load may trigger the current protection, limiting the power output to less than expected.
The 400kHz signal observed at the output of the amplifier is a residue of the switching nature of Class D amplifiers. This is completely normal and poses no harm. For more information, please refer to our EMI application note.

The HPR12/HNR12 are voltage regulators similar to the 7812/7912 ICs. The key differences are their wider bandwidth, lower noise, and lower output impedance. Additionally, they feature Kelvin-sense inputs, allowing the creation of a local regulator that does not need to be physically close to the circuit being powered. Typical op-amp based circuits exhibit significantly greater sensitivity to power supply ripple and noise than the DC PSRR values listed in the datasheet would indicate.

Clean power supplies are essential for high-quality audio performance. The noise and rejection specifications of the HxR modules are unparalleled, making them an excellent upgrade for any circuit that uses or requires regulators.
Input sensitivity is determined by the desired output power, the impedance of the speaker, and the gain of the amplifier. Naturally, the desired output power cannot exceed the amplifier's rated maximum. In this example, the input sensitivity for a 400W output at 4 ohms is calculated. The gain and maximum output power are specified in the datasheet. The speaker load depends on the user's application.

Temperature and implementation

Class D amplifiers are highly efficient in terms of power dissipation. If a Class D amplifier were heat-sinked like an equivalent Class AB amplifier, it would remain virtually stone cold. The primary objective is to reduce the heatsink size, making the amplifiers more compact. An idling UcD™ amplifier consumes up to 2% of its rated power—equivalent to 8W for a UcD400 amplifier. Whether this results in a significant temperature rise depends on the size of the heatsink. For further details, please refer to the "Thermal Design" application note.
Amplifiers must always be operated with an appropriate heatsink to prevent overheating. Even the highly efficient UcD700, with 90% efficiency, dissipates up to 70 watts at full power. The simplest solution is to use an all-aluminum enclosure to mount the amplifier. If a steel enclosure is used, a standard aluminum heatsink should be installed inside. Additionally, ensure adequate airflow within the enclosure by incorporating venting holes. For further details, please refer to the "Thermal Design" application note.
Our modules are factory-calibrated to achieve optimal Total Harmonic Distortion (THD) performance rather than to standardize operating current. As a result, operating current may vary within a 20% range. While this may lead to noticeable temperature differences, it is not a cause for concern.
An application note is available for customers interested in building high-power touring amplifiers. For personalized guidance, please contact our sales department at sales@hypex.nl

Cables and connections

We recommend using balanced input wiring; however, unbalanced input wiring is also supported. For detailed instructions, please refer to our amplifier input wiring application note.

To convert an unbalanced input signal to a balanced one, a high-quality interconnect cable can be used. Ready-to-use interconnect cables are available at www.diyclassd.com.

This setup essentially functions as a source selector. For detailed instructions on wiring an RCA connector to the UcD module, please refer to our application note "Dealing with Legacy Pin 1 Problems".

To implement the setup, install a DPDT switch to connect the hot and cold inputs of the UcD module to either pins 2 and 3 of the XLR connector or the signal and shell contacts of the RCA connector. Note that pin 1 of the XLR connector remains hardwired to the chassis and is not switched. Similarly, the RCA shell contact remains hardwired to the chassis.

When the DPDT switch is set to RCA, the cold input of the UcD module is grounded via the RCA connector. For further details, refer to the schematic in the "Dealing with Legacy Pin 1 Problems" application note.

Fundamentally, there is no inherent issue with using tube preamplifiers. However, many tube preamplifiers are designed to pair with tube power amplifiers, which are typically AC coupled. Consequently, some tube preamplifiers lack the necessary safeguards against turn-on and turn-off transients.

In certain cases, these preamplifiers may output their full anode voltage during power cycling. This can cause significant stress on connected equipment, as we have observed that a notable number of repairs result from tube preamplifiers discharging their output capacitors into the UcD™ input circuitry. It is important to note that such behavior is problematic for most solid-state amplifiers, not just UcD™ or NCORE® models.

We offer cable sets specifically designed for connections between the amplifier and the SMPS. Additionally, the datasheets for each product provide detailed pinout information for every connector on the module.

For our DIY amplifier modules, wiring schematics are available on our website at www.diyclassd.com.

A: Indeed you can. There’s no good way of adding a potentiometer to a truly balanced connection, but in a “pseudo balanced” connection it is possible. You'll need to use microphone cable (shielded twisted pair). There are 2 stretches of cable. Cable 1 goes from the RCA terminals to the pot. Cable 2 goes from the pot to the UcD input.
1) Cable 1 (RCA end): shield and white wire to RCA ground. Blue wire to RCA signal.
2) Cable 1 (Potentiometer end): white to potentiometer "common". Blue to potentiometer "input". Shield of cable one is connected to shield of cable 2 AND TO NOTHING ELSE!
3) Cable 2 (Potentiometer end): white to potentiometer "common". Blue to potentiometer "output" (wiper). As said in 2) the shield connects to the shield of cable 1 and to nothing else. RESIST ANY URGE to connect the shield to the pot common. 4) Cable 2 (amplifier end): white to pin 1, blue to pin 3, shield to pin 2. So that means that the shield of cable 1 continues as the shield of cable 2, so you get a contiguous shield all the way from the RCA to the amplifier. Any circulating currents that go through the shield will never mix with the audio ground because the audio ground is kept separate (white wire) and sensed differentially by the amplifier.
A: With each connector pinout table, the connector type equivalent is given. Instead of entering some limited specifications in our datasheet, Hypex choose to give the part numbers of the connectors (or equivalent) used on the modules. This allows you to find that specific matching cable part, which is easily available in your country. Furthermore, a datasheet of a connector gives you much more valuable information, including pin plating, alloy, latch type, contact resistance, insulation resistance, insulator material, dielectric withstand voltage, flammability rating and pin position.
Finally, Hypex advices to order the cables set of the specific modules via our webshop. This ensures you always have the correct cables and connector for your modules.

Datasheets and CAD files

All available downloads can be accessed on the respective product pages in our web shop or through the "Downloads" page.
For technical information or support, please contact us at supprt@hypex.nl

UcD™ Family

UcD™ Family amplifiers can be used for a wide range of applications, for example:
  • Multichannel applications (OEM LP series*)
  • Small size applications (OEM LP series*)
  • Public address systems (OEM LP series*)
  • Touring amps (OEM UcD™ Family*)
  • Subwoofers (OEM UcD™  Family*)

The quality of our UcD™ Family amplifiers is highly regarded by our customers. You can expect a top-notch amplifier module that will amplify your audio with precision and without any compromises.
Most of our UcD™ Family amplifiers are suitable for a BTL (Bridge-Tied Load) configuration. The UcD2k amplifier module is the exception, as it is already a bridged amplifier module and therefore not suitable for a BTL setup.

NCORE® Family

NCORE® Family amplifiers can be used for a wide range of applications, for example:

OEM
  • OEM audiophile mono power amplifiers (OEM NCORE® Family*)
  • OEM audiophile stereo power amplifiers (OEM NCORE® Family*)
  • OEM audiophile integrated builds (OEM NCORE® Family*)
  • OEM audiophile multichannel amplifiers (OEM NCORE® Family*)
(*For OEM customers only)

The quality of our NCORE® Family amplifier modules is already well-known and highly regarded, especially in high-end audio applications. These amplifiers are considered to be of audiophile-grade quality, delivering exceptional performance for the most demanding audio setups.
You can use two NCORE® Family amplifiers in a BTL (Bridge-Tied Load) configuration. However, the NC2k is the only amplifier in the NCORE® Family that is already a bridged amplifier module, so it is not suitable for a BTL configuration.

NCOREx® Family

With a minimum of 2x better noise reduction and Total Harmonic Distortion (THD) compared to the NCORE®, our eXceptional NCOREx® technology is the solution for your future High-End audio products. This technology focuses on delivering even better audio performance along with enhanced functionality. The NCOREx® OEM modules are ideal for any mono, stereo, multichannel, or active speaker application that demands nothing less than the best in audio quality.
With a minimum of 2x better noise reduction and THD compared to the NCORE®, our eXceptional NCOREx technology is our answer for your future High-End audio products. Focus on even better audio performance and added functionality. The NCOREx® OEM are ideal amplifier modules for any mono, stereo, multichannel and active speaker application which demands nothing but the best.

The NCx500 OEM can be used in a BTL (Bridge-Tied Load) configuration. However, the NCx1000 OEM cannot be used in a BTL configuration, as it is already a bridged amplifier module.


With a minimum of 2x better noise reduction and THD compared to the NCORE®, our eXceptional NCOREx technology is our answer for your future High-End audio products. Focus on even better audio performance and added functionality. The NCOREx® OEM are ideal amplifier modules for any mono, stereo, multichannel and active speaker application which demands nothing but the best.

Switch Mode Power Supplies

You can connect a LED with series resistor to the positive auxiliary output of the SMPS. You can use an online calculator like http://ledcalc.com/ to determine the value for the resistor. Refer to the datasheet of the SMPS for more information.
Yes, depending on the SMPS (Switch Mode Power Supply) you are using, you can add a small application. For the maximum ratings and detailed specifications, please refer to the datasheet of the specific SMPS to ensure compatibility and safe operation.
The SMPS3K is intended to power our range of high power amplifier modules, such as UcD2K and NC2K. As a result, this SMPS product does not feature the 2-quadrant operation as most of our other SMPS products do. Therefore, they are unable to handle large reverse currents generated by half-bridge amplifiers operated at low frequencies. For this reason, it is not advisable to use this SMPS to power half bridge amplifiers like our UcD102, UcD180(LP), UcD250LP, UcD400(LP), NC500 and NC1200 modules when used in the frequency range below 100Hz. A workaround for this could be using the half-bridge amplifiers in bridge mode or reversing phase for half of the modules.

Mains Powered NCORE® Family

The mains powered NCORE® amplifiers can be used for a wide range of OEM applications, for example:

  • Audiophile power amplifiers for professional and HiFi
  • Audiophile integrated builds for professional and HiFi
  • Active MI loudspeakers
  • Active PA loudspeakers
  • Active Monitor Speakers
  • Active Studio Monitor Speakers
  • Active subwoofers

The Mains Powered NCORE® Family modules are designed to be ‘quick-install' modules. The modules are intended to be applied in mass production environments. Therefore, we do not support modification of the modules. Hence, modifying the modules will result in voiding the warranty. Hypex has designed a buffer-less amplifier to be used in applications where the designer/manufacturer wants full control of buffer op-amp and gain. Please take a look at our NC500 OEM in combination with a SMPS1200A700.
Yes, with each mains powered NCORE® amplifier you can add one NC100HF tweeter channel amplifier. It is not possible to add 2 pieces NC100HF to one Mains Powered NCORE® Amplifier.
Yes, a two-channel NCxxxMP amplifier can be used in a BTL (Bridge-Tied Load) configuration to create a more powerful single-channel amplifier. Additionally, when bridged, you can add an NC100HF amplifier to create a more powerful 2-way setup, enhancing the overall system's performance.
The mains-powered NCORE® Family amplifiers can be used for multichannel applications. However, we recommend considering our NCORE® Family amplifier modules specifically designed for multichannel setups, as they offer more tailored solutions for such applications.

NCORE® Active Speaker Family

The NCORE® Active Speaker Family amplifier modules are specifically designed for active speakers that require asymmetric power. These modules feature a full-bridge high-power channel and a half-bridge medium-power channel on a single board, which includes a Switch Mode Power Supply (SMPS) and a standby power supply. This design ensures efficient power delivery and ease of integration for active speaker applications.

The NCORE® Active Speaker Family modules are designed for easy installation in mass production environments, with a focus on quick integration. As these modules are intended for standardized applications, modifications are not supported and will void the warranty. For applications where full control over the buffer op-amp and gain is required, Hypex offers the NC500 OEM amplifier in combination with the SMPS1200A700 power supply. This combination allows for more flexibility and customization in high-performance audio applications.

No, the NCORE® Active Speaker Family is not intended to be used in multichannel applications.

Fusion Amp Family

Plate amplifiers can be used to quickly and easily convert passive loudspeakers into active ones, or to replace your passive filter design with a digital filter solution.

These amplifiers are commonly used in active loudspeakers, high-power subwoofers, active monitor systems, and public address speakers.

The gain can be trimmed in the HFD software, adjusting the gain and input buffer at the amplifier itselves is not supported.
No, it is not possible to add anything to the Fusion Amp setup, as doing so will void the warranty.
Here you will find some example hardware and software:

Hardware:
  • Dayton EMM-6
  • Focusrite Scarlett Solo
It is important to use an external soundcard with microphone input.
Software:
  • Hypex Filter Design
  • Room EW Wizard software

Your Fusion amp is factory programmed, therefor a Fusion Amp cannot be changed afterwards. Adding an extra amplifier will result in a not working channel.
Out of the box, the Fusion Amp does not function for your safety and to protect your valuable speakers. Since the Fusion Amp’s DSP does not include a filter by default, you will need to start by using HFD. This free software can be downloaded from our website. You can familiarize yourself with the software, even without a Hypex product connected. A comprehensive guide on how to design the filters is available on our website under the "downloads" section.
Open HFD on your PC and connect your PC with the Fusion Amp. Open Filter design and choose “File” -> “New Fusion Amp” if you now choose “load filter to DSP” a unity filter will be uploaded. If you desire a different filter, please refer to the HFD manual.

For optimal performance, the Fusion Amp should be installed in a sealed compartment within your speaker cabinet. The online user guide includes basic installation dimensions. For detailed instructions, refer to the "Installation" chapter. Additionally, 3D models and 2D drawings are available on our website to assist you in designing the amplifier compartment.

In theory, a remote kit can be added to every Fusion Amp. For a stereo setup, 9 out of 10 configurations will be connected as master and slave, where the master provides the data to the slave for audio signals and controls. In this case, it is not necessary to have two remote kits. However, you still have the option to use two remote kits if you wish to have a LED indicator in both speakers to show activity.
All Fusion Amps are designed for mono 1, 2, or 3-way configurations. Stereo use with a single Fusion Amp is not possible. However, it is possible to sum the left and right channels (L+R) in one Fusion Amp, which can be used for applications such as a center speaker in a multi-channel setup.
The USB port at a Fusion Amp can only be used to configure the Fusion Amp DSP. This connection does not support USB audio.
If a mixed setup is created, where one-way models are mixed with multi-way models, the master should be a multi-way model. This is because a mixed configuration may have conflicting inputs (digital vs high-level). In such cases, the one-way models will be muted when a digital source is selected at the master. If this behavior is undesirable, it is recommended to consider using a two-way model in BTL or dual mono configuration for the subwoofer amplifier.
Please download the Hypex Filter Design installation and Hypex FusionAmp Firmware update tutorial at "downloads"
Due to component availability, we were forced to use different hardware on the DSP3-213 (previously called MP-DSP Main). This resulted in two versions of firmware 1.x and 5.x

Please choose the correct update file. To make sure you choose the right file, please read: "READ THIS FIRST" at the download page at any Fusion Amplifier product page. 

DSP Family

Hypex DSP solutions are ideal for active speaker systems. We offer complete solutions with the Fusion Amplifier Family, and for OEM customers, we also provide separate DSP modules for integration into custom designs.
The following product Families use or can be used with the DSP Family:
  • Fusion Amp Family (on-board)
  • Mains Powered NCORE® Family
  • NCORE® Active Speaker Family
Here you will find some example hardware and software:

Hardware:
  • Dayton EMM-6
  • Focusrite Scarlett Solo
It is important to use an external soundcard with microphone input.
Software:
  • Hypex Filter Design
  • Room EW Wizard software

HFD USB communication is only compatible with 32-bit operating systems. However, the USB DAC is compatible with both 32-bit and 64-bit operating systems.
Due to component availability, we were forced to use different hardware on the DSP3-213 (previously called MP-DSP Main). This resulted in two versions of firmware 1.x and 5.x

Please choose the correct update file. To make sure you choose the right file, please read: "READ THIS FIRST" at the download page at any Fusion Amplifier product page. 

Hypex Filter Designer

For Hypex Filter Designer related questions we have a HFD manual available. The HDF manual can be found at "downloads" and DSP containing product pages.

Multichannel applications

Hypex products can certainly be used to create a multichannel application. The most important consideration when building a multichannel setup is cooling. If multiple amplifiers and power supplies are mounted in one enclosure, the internal temperature can rise quickly. To prevent overheating, ensure that adequate heatsinks are used, and consider adding active cooling with a fan. It's also important to allow airflow inside the case, even if a fan is not in use. If you need assistance while building a multichannel amplifier with Hypex products, please contact us at sales@hypex.nl.
This is the most important aspect of designing a multichannel amplifier. We are happy to assist you in building a multichannel amplifier with Hypex products. Please contact us at sales@hypex.nl for further guidance.