A1500.2 Dual Monoblock Class A Power Amplifier with Mirror Image Technology

$ 7,499.00

The A1500.2 is a True Dual Mono Design providing better stereo separation and imaging as compared to traditional stereo amplifiers - the chassis being the only thing common between channels. In an effort to provide the very best signal to noise ratio and lowest distortion possible, 109 dB (A-weighted) and <.002% THD+N (when operated in Class A) respectively, the amplifier utilizes a Mirror Image Design with positive and negative output signals of each channel generated using identically mirrored circuitry. Each of the two channels is also a mirror image of the other. In addition, the A1500.2 offers Selectable Mode Design with both Class AB and True Class A modes of operation available. The execution of Class A topology is unlike anything that has been done in a mobile application to date, offering a realism and truth to the source never before available from a mobile power amplifier.

From a design standpoint, the A1500.2 utilizes separate PCBs for the voltage amplification stage and current amplification stage to maximize the signal to noise ratio so that it's dead silent. It has been designed from the ground up around the highest quality components available at any cost, including; Nichicon Fine Gold™ capacitors, Nichicon Muse™ audio capacitors, (14) On-Semiconductor complementary bipolar junction transistors per channel, and non-inductive resistors, all assembled on 4-layer heavy copper PCBs! Its dual mono channels can be wired as a single channel with double the output voltage for applications where high power is required. Finally, it includes a pair of gorgeous LED output meters to indicate actual amplifier power for each channel.

 

SPECIFICATIONS

Maximum Output

39 Volts RMS, 78 Volts RMS with channels connected in series

45 Amperes RMS

 

Sine wave continuous power output

325 Watts per channel into 4 ohms

600 Watts per channel into 2 ohms

900 Watts per channel into 1 ohm

The two mono channels can be connected in series, in this mode the power output is

1200 Watts into 4 ohms

1800 Watts into 2 ohms

 

Sine wave burst output  (IHF-202 Dynamic Power)

370 Watts per channel into 4 ohms

690 Watts per channel into 2 ohms

1225 Watts per channel into 1 ohm

With the two mono channels in series

1380 Watts into 4 ohms

2450 Watts into 2 ohms

 

Distortion

Total Harmonic Distortion at 20Hz and 1kHz

Class A mode  less than 0.002%

Class A/B mode less than  0.009%

Total Harmonic Distortion at 20kHz

Class A mode less than 0.02%

Class A/B mode less than 0.03%

 

Noise

Signal to Noise ratio at rated power

Greater than 109dB "A" Weighted

Greater than 105dB unweighted

 

Frequency Response

20Hz - 20kHz   +0, -0.2dB

3Hz - 100kHz  +0, - 3dB

 

Damping Factor

Greater than 700 into 4 ohms, 20Hz Sine wave

 

Input Sensitivity (for rated output)

Input is Balanced or Unbalanced via internal switch

500mV - 8.6V Balanced

250mV - 4.3V Unbalanced

 

Efficiency at rated power 

74% into 4 ohms

72% into 2 ohms

69% into 1 ohm

 

Idle Current

Class A mode  35 Amperes (up to 50 Amperes during warm up)

Class A/B mode  3 Amperes

 

Maximum Current Requirement

64 Amperes both channels driven to clipping with 4 ohm loads

116 Amperes both channels driven to clipping with 2 ohm loads

190 Amperes both channels driven to clipping with 1 ohm loads

 

Recommended Fuses

150 Amps per channel

 

Dimensions

23.25 inches x 10.55 inches (11.55 inches including mounting tabs) x 2.25 inches

590mm x 268mm (293mm including mounting tabs) x 57mm

 

Weight on Earth

27 lbs  amplifier only

34 lbs  shipping weight

 

Mass

12.3 kg  amplifier only

15.5 kg  shipping weight

 

Low bass note distorting the camera's microphone even at low volume. Please ignore. Please watch in HD. #damoreengineering #real #amplifiers

Posted by Tony D'Amore on Friday, January 15, 2016