EM Acoustics AQ-10 Switchmode Amplifier

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Showtechnix is Proudly the exclusive distributor of the EM Acoustics Audio Systems in New Zealand…


Introducing AQ 10 Four Channel Switchmode Amplifier


The AQ-10 is a lightweight switchmode four-channel power amplifier designed to give the best performance from any loudspeaker within the EM Acoustics product range.

Designed by MC2 Audio, the AQ-10 utilises proprietary Class-D amplifier technology, combined with a dual feedback loop system to give excellent transient response. The resonant power supply has a very large power reservoir, which allows the AQ-10 to deliver high transients without any perceptible “bass sag”. This, along with the aluminium chassis construction are the keys to the very low weight, which makes the AQ-10 as ideal for touring applications as it is for fixed installations. The design of the AQ-10 utilises a progressive switching rail output, which enables the high voltage swings required to produce peak power capability without compromising the sonic performance. As such, the AQ-10 is as at home amplifying the nuances of a theatrical performance as it is reproducing bass lines in a nightclub or touring environment.

The AQ-10 also features newly designed limiters, which are linked to the output current monitors and power supply which keep mains input and output currents within safe operating limits at all times, whilst maintaining the transparent sonic performance required. The inbuilt Power Reduction Control is also tied into these limiters – as well as the power supply, and continually monitors these as well as load, temperature and other operating parameters. Activated via recessed switches on the rear panel, the PRC effectively reduces the available power output from the amplifier. This allows the user to set the AQ-10 to have a maximum power below its rated output, ensuring the best possible match to a wide variety of different loudspeakers and improving overall system reliability.

The front panel for the AQ-10 carries the AC mains power switch and indicator LED, as well as 5-segment LED meters and indicators for channel input link, PRC activation, bridged mode and audio protection. Each channel also has a multi-detent analogue level control allowing precise signal level settings when in use. Amplifier protection is also an area where the AQ-10 delivers completely. A soft-start sequence with complete inrush protection means the AQ-10 powers up completely muted, and then gradually fades the input up to the previous level. A comprehensive diagnostic circuit constantly monitors load, temperature and other parameters and automatically adjusts the power supply if overheating or any other problems occur. Output short circuit and DC output are also protected – and the AQ-10 will only require a manual restart if output short circuits occur.

The AQ-10 is built around a 2U all-metal chassis, which provides a roadworthy package whilst keeping the weight low. Handles are included within the front 5mm thick fascia panel. A rackmount kit is also supplied to enable the amplifier to be secured at the rear for additional stability. Low-noise variable speed fans are fitted to the AQ-10 (cooling is from front to rear), along with a reticulated foam dust filter which can easily be removed for cleaning.

The rear panel houses the Neutrik® XLR input connectors, along with output connectors on Neutrik® speakON™ NL4. The captive AC mains power cable is also presented on the rear panel, along with the recessed switches for bridged mode (channels bridge in pairs), input signal link (link A-B, link B-C, link C-D) and the PRC controls for each channel.


Amplifier class & channels D, 4 channels
Output Power (sine @ 1kHz) 1150W/channel @ 8 ohms
2250W/channel @ 4 ohms
3200W/channel @ 2 ohms
4500W @ 8 ohms, 6400W @ 4 ohms (bridged)
THD (1dB below max output) <0.08% @ 1kHz, <0.15% 20Hz – 20kHz
Gain 26 / 32 / 36dB
Sensitivity 16/10/6dBu (for max power)
Frequency Response 20Hz – 20kHz 0dB /- 0.5dB
Damping Factor 400 (8 ohms, 1kHz)
SNR (unweighted) >105dB (22Hz – 20kHz)
Protection OP short circuit/DC, over temp, mains in-rush
Power Consumption @ 4 ohm load 7.0A nominal (240V), 14.0A nominal (120V)
Dimensions (HxWxD), mm/(ins) 88 (3.5) x 482 (18.9) x 428 (16.8)
Net/Shipping Weight 11.8/13.8kg (26/30.4lbs)


Technical Documents

Data Sheet

User Manual

Weight 13.8 kg
Dimensions 728 x 88 cm