www.audiostereo.ro

AUDIO ALCHEMY DPA-1M ( Mono Power Amplifier )

AudioStereo logo
AUDIO ALCHEMY DPA-1M - Mono Power Amplifier
AUDIO ALCHEMY DPA-1M - Mono Power Amplifier side AUDIO ALCHEMY DPA-1M - Mono Power Amplifier back

2699

Audio Alchemy DPA-1M Features:

  • 325 WPC into 8Ω, 400 WPC into 4Ω
  • Class A discrete FET input stage
  • Cool-running Class D output stage
  • XLR and RCA inputs
  • Switchable gain and mute

The DPA-1M Digital Power Amplifier doubles up on the DPA-1’s almost magical combination of power, musicality and efficiency. Even though it’s just 10.5 inches wide, the DPA-1M conjures up an incredible 325 watts per channel into 8 ohms. Because it’s a monoblock, power is doubled and the left and right channels can hit full output and maximum dynamics without impacting the performance of the other channel. Hearing this tiny, cool-running amp produce such incredible dynamics is almost as dazzling watching a wizard change a rabbit into a horse. But it’s not magic, just a masterful combination of a Class A analog input stage with a high-efficiency Class D output stage.

Analog Class A input stage

The input stage is the same essential circuit used in many of the world’s best and most expensive amplifiers: a Class A design built using discrete FETs and powered by a semi-toroidal transformer. Because it’s pure analog all the way through, with no integrated circuits in the signal path, it provides the output stage with an ultra-clean signal and preserves every last tiny detail in the music.

Effortless, efficient power

How does the DPA-1M deliver so much power from such a tiny chassis? The secret behind this magic is a Class D output stage, which runs about 80% efficiency, compared to about 30% for a typical Class AB amp, and idles at about 20 watts rather than the 100 watts many Class AB designs consume. Because the DPA-1M’s output stage produces so little heat, it doesn’t require large heat sinks, a large chassis, or anything more than just minimal ventilation. Thus, it operates flawlessly whether it’s out on the floor on an amp stand, or tucked away in an equipment cabinet or closet.

Technical Information

Power output (0.1% THD+N, 1 kHz): 325 watts into 8Ω; 400 watts into 4Ω
Frequency response: +/-0.25 dB, 20 Hz to 20 kHz
Nominal THD+N (1 watt into 8Ω): 0.05%
Signal-to-noise ratio (1 kHz)” 100 dB unweighted
Input impedance: XLR: 17.0 kΩ in low gain mode, 17.6 kΩ high gain; RCA: 10.7 kΩ in low gain mode, 11.6 kΩ high gain
Output impedance: 0.022 Ω
Channel separation (1 kHz): -80 dB
Gain: 20 or 26 dB switchable
Inputs: XLR, RCA, IEC power, 3.5mm trigger
Outputs: 5-way binding posts (two sets)
Available finishes: Silver
Height: 3.0 in / 76 mm
Width: 10.5 / 267 mm
Depth: 11.6 in / 295 mm
Net weight: 16.0 lb / 7.3 kg

 
Audio Alchemy DPA-1M Manual (PDF)
 
 
 
ATC SIA2-150 - Stereo Setup
ATC SCM 20 SL Stereo Setup
ELAC 330 CE Stereo Setup XAVIAN XN 270 Stereo Setup
330 CE XN 270 Evo
ATC SCM 40 Stereo Setup
ELAC FS 409 XAVIAN XN Carisma Stereo Setup
FS 409 XN Carisma
ATC SCM 50 SL Stereo Setup
ELAC Spirit of Music CE Stereo Setup XAVIAN XN Virtuosa Stereo Setup
Spirit Of Music CE XN Virtuosa
ATC SCM 100 SL Stereo Setup ELAC FS 509 VX-JET Stereo Setup XAVIAN XN 360 Stereo Setup
SCM 100 SL FS 509 VX-JET XN 360
 
©2008-2017 AudioStereo