Anyone here have any experience using a headphone amp as a preamp? Good idea/bad idea? Anything to watch out for (too much gain, impedance matching...??)
AMB's M3 and B22 headphone amp can be used as preamp as well as small speaker amp. The B22 is very well received and is rated highly as headphone amp. Not sure how it will fatch as preamp.
AMB has a very good build details on his site http://www.amb.org/audio/ and you should find most of the answer there. If not, you can reach him over the headwize forum.
http://headwize.com/ubb/forumdisplay.php?fnum=3
Have fun,
Sam
AMB has a very good build details on his site http://www.amb.org/audio/ and you should find most of the answer there. If not, you can reach him over the headwize forum.
http://headwize.com/ubb/forumdisplay.php?fnum=3
Have fun,
Sam
Basalt said:
In essence a headphone amp is a preamp with a slightly beefed-up power supply and output stage.
With the vast majority of headphone amps they should work perfectly well as preamps. However two provisos...
1) Some have a silly amount of gain and hence you might not have much usable volume control range.
2) Conventionally wired headphone amps share the output negative connection between left and right channels, and as such the maximum channel separation can sometimes be limited. In reality you may not notice this.
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