Audio amplier design

In addition to the range of broadcast services, Xav Broadcast designs and builds bespoke high-end, energy-efficient Class D audio amplifiers, hand-assembled using the highest quality components for optimum audio quality.

Typical applications include:

  • Public address systems
  • Audiophile power amplifiers
  • Small auditoriums and high-end Home Cinema

Custom enclosure design

As each design is fully customisable, we can cater for any specific chassis dimension requirements: from half-width units for one or two channels to 19″ enclosures with rack mount ears for installation in standardised racks.

We can even provide custom cutouts on any surface (front, sides, top or rear) for branding or identification purposes.

XLR Lead

Fully balanced audio inputs

Our amplifier assemblies are fully balanced by design. Physical connections can be either XLR or D-sub shells for those who wish to integrate multiple channels in a single cable. We can provide high quality unbalanced RCA/phono to balanced signal converter cables if required.

Industry-recognised quality components

The assembly of our amplifiers uses the best quality components chosen after in-depth research to provide the highest quality audio signal and amplification. All XLR connectors are Neutrik Black series, all internal audio signals are carried by Mogami Neglex 2549 balanced microphone cable. Speaker cable is pure stranded OFC copper capable of carrying currents in excess of 20A.

Internal wire routes are carefully planned and isolated from the mains power to minimise any EM interference.

Mogami 2549 Cable

Leading-class performance and efficiency

Based on Class D amplification, our amplifier assemblies are able to provide far more power than traditional class A or AB amplifiers. They are also incredibly efficient, attaining 90%, thereby reducing the need for active cooling or large enclosures with heatsinks in most cases. Using the latest switched mode power supplies, our assemblies are also very lightweight due to the lack of toroidal transformers and heavy heatsinks.

All enclosures are double insulated providing Class II safety, removing the need for electrical earth and any potential ground loop problems.

Audio Specifications

All our amplifiers are powered by switch mode power supplies specifically designed with audio amplification in mind and provide extra voltage regulation to allow for optimum audio quality.

20 mΩ (f<1kHz) 150 mΩ (f<20kHz)[/av_cell][av_cell col_style='' av_uid='av-2aokott']20 mΩ (f<1kHz) 150 mΩ (f<20kHz)[/av_cell][av_cell col_style='' av_uid='av-27twp9t']20 mΩ (f<1kHz) 150 mΩ (f<20kHz)[/av_cell][av_cell col_style='' av_uid='av-7v0gch']10 mΩ (f<1kHz) 50 mΩ (f<20kHz)[/av_cell][/av_row] [av_row row_style='' av_uid='av-24p7rw1'][av_cell col_style='avia-highlight-col' av_uid='av-7lidj5']Frequency Response (10Hz - 50kHz)[/av_cell][av_cell col_style='' av_uid='av-223n2qp']+/- 3 dB at all loads[/av_cell][av_cell col_style='' av_uid='av-20jb975']+/- 3 dB at all loads[/av_cell][av_cell col_style='' av_uid='av-1y1jy1d']+/- 3 dB at all loads[/av_cell][av_cell col_style='' av_uid='av-1vz7z5t']+/- 3 dB at all loads[/av_cell][/av_row] [av_row row_style='' av_uid='av-1vl1n8x'][av_cell col_style='avia-highlight-col' av_uid='av-1soccsx']Voltage Gain[/av_cell][av_cell col_style='' av_uid='av-1shjl2p']26 dB[/av_cell][av_cell col_style='' av_uid='av-1pwmw4h']26 dB[/av_cell][av_cell col_style='' av_uid='av-1oc6kjl']26 dB[/av_cell][av_cell col_style='' av_uid='av-1n2img1']34 dB[/av_cell][/av_row] [av_row row_style='' av_uid='av-5nd31d'][av_cell col_style='avia-highlight-col' av_uid='av-1jrt04x']Efficiency[/av_cell][av_cell col_style='' av_uid='av-1hpvly9']92% (full power)[/av_cell][av_cell col_style='' av_uid='av-1ft2bup']92% (full power)[/av_cell][av_cell col_style='' av_uid='av-1ec83wx']92% (full power)[/av_cell][av_cell col_style='' av_uid='av-4y38ep']92% (full power)[/av_cell][/av_row] [av_row row_style='' av_uid='av-1ait1s1'][av_cell col_style='avia-highlight-col' av_uid='av-18wscvl']Idle Losses[/av_cell][av_cell col_style='' av_uid='av-177xn4x']4W[/av_cell][av_cell col_style='' av_uid='av-15p1wld']8W[/av_cell][av_cell col_style='' av_uid='av-14lr2y9']15W[/av_cell][av_cell col_style='' av_uid='av-12ybdmp']35W[/av_cell][/av_row] [/av_table] [/av_one_full][av_one_full first av_uid='av-119jnwx'] [av_textblock av_uid='av-zfnu41']

Quality and certification

All amplifiers are hand-assembled and tested before delivery to the customer.

Soldering is lead-free, and our amplifiers and components are RoHS certified.

All our equipment comes with a two year return to base warranty. Depending on your needs, an advanced swap-out may be possible.

Sample models

All designs are fully modular allowing us to cater for your specific needs. Below are some renders of various configurations available.

1RU 110mm wide monoblock

Small 110mm wide monoblock in 1RU height available in 180W and 400W versions of our high grade amplifiers and also our “Au400” audiophile model.

110mm 1RU monoblock amplifier

The 110mm width allows for four individual units to be placed adjacently in a 1RU space.

2RU 440mm wide multi-channel

Full width case allowing up to 7 channels of our high grade amplifiers in 180W and 400W versions.

440mm 2RU multichannel amplifier

3RU 440mm wide multichannel

Our 3RU height model allows for even more options; providing up to 11 channels of 180W high grade modules or 7 channels of 400W high grade modules.

To find out more about what we can offer you, please give us a call on +44 (0) 7881 581403 or email us audio @, or, alternatively, fill in the contact form on the right and we will get back to you.

Audio amplifier enquiry