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Custom Enclosures


Adire Audio
Extremis 6.8

THD 250 watts into 4 ohms @ 0.2% THD

Signal to noise ratio: 101 dB (A-weighted). Bass boost (EQ): +6 dB @ 35 Hz. (includes boost chart).

Amplifier dimensions: 10-3/8" W x 10-7/16" H x 3-1/4" D.

Enclosure cutout: 9" W x 9-1/4" H.

Control panel dimensions: 5-1/2"W x 3-1/2" H x 3-3/4" D.

Control panel cutout: 4-1/2" W x 2-1/2" H.

Voltage: Selectable, 115/230V, 50-60 Hz, 450W.

RMS into 8 ohms @ .1%

Measured power output: 150 watts

Net weight: 12 lbs

Features: * IR remote control * Remote mountable control panel * High power class AB amplifier * Phase switch * Gold plated connectors * High pass filter for satellite speakers * Line level outputs * Auto On/Off

This high performance subwoofer amplifier allows you to adjust the volume and crossover frequency from the comfort of your favorite chair! Making subwoofer adjustments between music and movie soundtracks has never been easier. The control panel, designed to be mounted on the front of the enclosure, houses motorized volume and frequency controls as well as the IR pick-up for the remote control. The high power class AB design, produces clean, earth shaking bass. The amp features gold plated high and low level inputs, phase switch selectable between 0 and 180, level control, auto on/off (activated by input signal), and a second order (12 dB) electronic low pass filter that is continuously variable from 40 to 170 Hz. It also features a 6 dB high pass filter (125 Hz @ 8 ohms) output for satellite speakers and a line level output to "daisy chain" the signal to other amplifiers. This amp has thermal overload, fuse protection for years of reliable use. Both, right and left stereo inputs are summed to a mono output, so that only one amp is required per system. The pre-amp board is completely sealed with high-density foam to help eliminate air leaks around inputs and controls. The mounting plate also features a high-density foam gasket for easy air-tight installations.


Shipping costs are approximately $13-$18 depending on your location.


Spec Sheet with bass boost/rumble filter modifications

(435) 730-4967 1375 W. 3275 S. Perry, UT. 84302 Send questions to:
[email protected]

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