Audio Research - D240 Solid state power amplifier
05
days
11
hours
34
minutes
24
seconds
 | €240 | |
|---|---|---|
| €220 | |
| €200 | |
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Audio Research D240 MkI stereo solid‑state power amplifier, manufactured in 1992, in excellent physical condition and tested to be functional, serial number 21250018, 18 kg, dimensions 48 cm W × 15 cm H × 35 cm D, includes power cable.
AI-assisted summary
Description from the seller
The Audio Research D240 MkI is a stereo solid-state power amplifier stage built in the early 1990s, highly regarded for combining part of Audio Research's characteristic musicality with the reliability of a fully transistorized stage.
Key characteristics:
Type: Stereo solid-state power amplifier stage.
Manufacturing period: Approximately 1990-1992.
Output power: 120 W per channel into 8 Ω in stereo.
Minimum recommended load impedance: 4 Ω.
Frequency response: 20 Hz - 20 kHz.
Damping factor: 170.
Gain: 25.8 dB.
Input sensitivity: 1.6 V.
Signal-to-noise ratio: 106 dB.
Weight: 17.3 kg.
Dimensions: 480 × 133 × 295 mm.
Technical design
Input stage based on selected J-FET and MOS-FET.
Direct-coupled output stage with multiple high-current transistors per channel.
Electronically regulated power supply.
Energy storage capacity of approximately 180 joules.
Electronic protection against short circuits, overloads, and DC presence at the output, with no fuses in the signal path.
Connections:
Unbalanced RCA inputs.
Inverted RCA inputs for balanced operation.
Balanced XLR inputs.
Can operate in stereo or bridged mode (bridged).
Sound:
The D240 MkI is often described as one of Audio Research's most "tube-like" solid-state stages of its era:
Warm, fluid sound.
Wide, deep soundstage.
Very natural mids.
Controlled bass.
The Audio Research D240 MkI is a stereo solid-state power amplifier stage built in the early 1990s, highly regarded for combining part of Audio Research's characteristic musicality with the reliability of a fully transistorized stage.
Key characteristics:
Type: Stereo solid-state power amplifier stage.
Manufacturing period: Approximately 1990-1992.
Output power: 120 W per channel into 8 Ω in stereo.
Minimum recommended load impedance: 4 Ω.
Frequency response: 20 Hz - 20 kHz.
Damping factor: 170.
Gain: 25.8 dB.
Input sensitivity: 1.6 V.
Signal-to-noise ratio: 106 dB.
Weight: 17.3 kg.
Dimensions: 480 × 133 × 295 mm.
Technical design
Input stage based on selected J-FET and MOS-FET.
Direct-coupled output stage with multiple high-current transistors per channel.
Electronically regulated power supply.
Energy storage capacity of approximately 180 joules.
Electronic protection against short circuits, overloads, and DC presence at the output, with no fuses in the signal path.
Connections:
Unbalanced RCA inputs.
Inverted RCA inputs for balanced operation.
Balanced XLR inputs.
Can operate in stereo or bridged mode (bridged).
Sound:
The D240 MkI is often described as one of Audio Research's most "tube-like" solid-state stages of its era:
Warm, fluid sound.
Wide, deep soundstage.
Very natural mids.
Controlled bass.
Details
Era
1900-2000
Brand
Audio Research
Model
D240
Multiple models
No
Physical condition
Excellent
Number of objects
1
Includes
Power cord
Serial number
21250018
Year of manufacturing
1992
Weight
18 kg
Functional condition
Tested and working/playable
Height
15 cm
Width
48 cm
Depth
35 cm
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