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Adire Audio
Extremis 6.8

Power output 273 watts RMS into 8 ohms @ 0.06% THD, 540 watts RMS into 4 ohms @ 0.15% THD

S/N ratio @ rated power 98dB A-weighted

Variable low pass freq 30 ~ 200 Hz

Parametric EQ specs Frequency: 18 to 80 Hz, Level: -14.5 to +6 dB, Bandwidth: .1-1 Q.

Efficiency 86%

Dimension 11-15/16" W x 11-15/16" H x 5-1/4" D

Cutout Dimension 10" x 10"

Weight 15.2 lbs

Parts Express 300-806
500 Watts!  One of the most technologically advanced subwoofer amplifiers on the market! This new subwoofer amplifier is based on state-of-the-art Class G circuit topology that combines the proven high power, high fidelity characteristics of a Class AB amplifier with a patented tracking down converter power supply to achieve an operating efficiency up to 86%. You get the efficiency of a Class D amplifier without compromising audio quality and reliability. The class AB output stage provides the clean and low-distortion sound that audiophiles demand, without any instability problems of other high-efficiency amplifier designs. This American designed and engineered amplifier uses patented circuitry that continuously tracks the input signal to modulate or control the voltage available to the output stage. This "tracking" capability delivers the exact amount of power based on demand instead of constantly keeping it in reserve, so the output stage only draws the amount of power that is required at any given time. This means less energy is wasted as heat, and more power is available for the subwoofer driver.

Features: Very high efficiency Class G amplifier.
High power Class AB output stage
Patented tracking downconverter power supply
Full parametric bass EQ
Advanced soft clip circuitry
Toroidal power supply transformer
Low-pass crossover: 30 - 200 Hz, 24 dB/octave
Phase invert switch control.
Auto on/off.
Master power switch.
Provides LFE input.
IEC power socket.


Shipping costs are approximately $15-$25 depending on your location.


Some other items you may need:

3" Port Kit

4" Port Kit

Dual Input Cup

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

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