AURRAS Demi-God DG-90.4 Class A/B 4-Channel Amplifier

• 110W x 4 RMS @ 4 ohms Stereo (14.4V)

• 165W x 4 RMS @ 2 ohms Stereo (14.4V)

• 330W x 2 RMS @ 4 ohms Bridged (14.4V)

• High-Efficiency Class A/B amplifier topology

• Highly flexible Low-Pass Filter (50Hz-500Hz / 500Hz-5000Hz)

• Highly flexible High-Pass Filter (50-500Hz / 500Hz-5000Hz)

• Dedicated Subsonic Filter: 10Hz-500Hz

• Outstanding Signal to Noise Ratio: 90dB

• Reliable, time-tested amplifier design for unmatched capability

If there's one thing The Amp Lab knows, it's amplifiers! Since 2016, we have worked on thousands of amplifiers, and we've used that knowledge, along with our over 25 years of hands-on experience in the car audio installation profession, to bring you Aurras. Our goal with the Aurras Demi-God DG-90.4 is not to bring you the newest or most flashy amp on the market, but to deliver what we believe is the most reliable, capable, tested, and trusted amplifier design available! This high-performance Class A/B amplifier provides the clean power and full range of controls you need for incredible sound quality and dependable output.

The Demi-God DG-90.4 utilizes an efficient and robust design, guaranteeing long-lasting durability and superior component stability. With an excellent Channel Separation of 60dB and a remarkably low T.H.D. of 0.035%, this amplifier ensures a clean, detailed, and dynamic soundstage. The wide input sensitivity and flexible crossover network allow for precise tuning, making it the perfect foundation for any serious car audio system upgrade.

 

SPECIFICATIONS

• Model: AURRAS Demi-God DG-90.4

• Class: Class A/B

• Input Sensitivity: 8V-200mV

• Signal to Noise Ratio: 90dB

• Low-Pass Filter: 50Hz-500Hz / 500Hz-5000Hz (x10)

• High-Pass Filter: 50-500Hz / 500Hz-5000Hz (x10)

• Subsonic Filter: 10Hz-500Hz

• Frequency Response: 15Hz-35KHz

• T.H.D. @ 4 ohm, 1KHz: 0.035%

• Efficiency @ 4 ohm, 100Hz: 90%

• Channel Separation: 60dB

• Operating Voltage: DC 10V-16V

• Recommended Fuse Rating: 40A x 2

• Dimensions: 14.96" L x 9.45" W x 2.40" H

 

Specification	Details
Continuous Power Output	@14.4V / @12.8V
- RMS Power, 4 ohms Stereo	110W × 4 / 90W × 4
- RMS Power, 2 ohms Stereo	165W × 4 / 125W × 4
- RMS Power, 4 ohms Bridged	330W × 2 / 250W × 2
Signal to Noise Ratio	90 dB
Low Pass Frequency Crossover	50–500 Hz
	500–5000 Hz (×10)
High Pass Frequency Crossover	50–500 Hz
	500–5000 Hz (×10)
Subsonic Filter	10–500 Hz
Frequency Response	15 Hz – 35 kHz (±1 dB)
T.H.D Continuous @ 4 ohms, 1 kHz	0.04%
Channel Separation	60 dB
Input Sensitivity	8V – 200mV (±5%)
Dimensions (mm)	240 (W) × 61 (H) × 380 (L)
Operating Voltage	DC 10V – 16V
Recommended Fuse Rating	40A × 2