Front view of the Audio Research Audio Research DS450
front
0
0
Front view of the Audio Research Audio Research DS450
No description
Specifications
| power
[?]
|
450 watts/channel
|
channels
[?]
|
stereo
|
THD
|
1 %
|
| gain
|
26 dB
|
width
|
19 in
|
height
|
7 in
|
| depth
|
18.4 in
|
Reviews
Given its penchant for producing large, heavy, behemoths, Audio Research's launching of a Class D power amp, the new DS450, is more than slightly surprising. While Pure Class A still sets a benchmark when the highest quality results take precedence, there
Tech Radar Aug 19, 2010
edit
Contributors to this page
watts/channel into 8 ohm speaker load
watts/channel into 4 ohm speaker load
watts/channel into 2 ohm speaker load
watts/channel into 1 ohm speaker load
Amplifier power output uses vacuum tube
Single-ended triode tube amplifier. Otherwise, if not SET, tube amps will likely be push-pull.
Input gain stage uses vacuum tube output stage does not
Input gain stage uses vacuum tube output stage does not
Balanced architecture internally
Power supply for amplifier comes in a seperate chassis (box)
Wall power consumed when on standby
Wall power consumed when on but not playing music
number of channels; i.e. 1 for monoblocks, 2 for stereo and 3 or more for home theater
Switchable or permanent low gain. Useful for horn speaker systems, for example. Normal gain preamps make these systems very loud even when the volume is turned to 1.
Single-ended input impedance. Double this for balanced inputs
Total weight of all boxes required to make a stereo amplifier
the basic design of the circuit. Class A is simplest and runs the hotest. Class D is a relatively new design that is efficient but is only now becoming perfected for audio
Changing the voltage from 110 to 220 and back
A post to connect grounding wire to, often helpful for troublesome turntable setups
Weight of all pieces and packaging
