Hardware play-through?

[Samuel Kidman]

On Tue, Oct 5, 2010 at 1:33 PM, Samuel Kidman <samkidman at gmail.com> wrote:

>
>
> On Tue, Oct 5, 2010 at 1:22 PM, Tim <ignored_mailbox at yahoo.com.au> wrote:
>
>> On Mon, 2010-10-04 at 13:18 +0800, Samuel Kidman wrote:
>> > My current audio set up is like this:
>> > Turntable --> Phono Input | Amp |Tape/Ext Output ---> Front Mic Input |
>> Computer.
>>
>> Just a heads-up:
>>
>> As a general rule, you shouldn't connect line outputs (your amplifier's
>> tape output) into microphone inputs (your computer), as the audio
>> voltage is about 100 times too much.  You're likely to overdrive the
>> input stage, well before the volume control part of the circuit, causing
>> noise and distortion.  Line outputs should connect to line inputs.
>>
>> Also, the microphone inputs typically have about 5 volts of DC on them
>> to power electret microphones.  This can upset whatever's connected to
>> them, causing problems or damage (destroy output stages, make connectors
>> and volume controls go noisy).
>>
>> Having said that, you *may* get away with it, as *some* sound cards do
>> have quite a large handling range.  Though none of mine do.
>>
>> --
>> [tim at localhost ~]$ uname -r
>> 2.6.27.25-78.2.56.fc9.i686
>>
>> Don't send private replies to my address, the mailbox is ignored.  I
>> read messages from the public lists.
>>
>>
>>
>>
>> --
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>
> Damn, I kind of wish I already knew that. It's now plugged into the line
> input at the back.
>
>
> This is a little OT but I think something might have happened to the
amplifier. When I listen to the output on my computer the left channel is
completely distorted, when I listen on the headphone socket on the amplifier
it sounds fine.. bearing in mind that this is an Technics SIJ-500 amp that I
found on the side of the road, does anyone know if this is fixable?
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