high preout voltage usb sound card?

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"Mark Zarella" wrote ...
> Anyone know of any soundcards with a high preout voltage?
> 4v and up. It must have a USB interface. At least one analog
> input. The more analog outputs the better.

Seems pretty unlikely. 4v is higher even than professional
line levels. Why do you think you need such a thing?

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"MZ" wrote ...
>> > Anyone know of any soundcards with a high preout voltage?
>> > 4v and up. It must have a USB interface. At least one analog
>> > input. The more analog outputs the better.
>>
>> Seems pretty unlikely. 4v is higher even than professional
>> line levels. Why do you think you need such a thing?
>
> Car application. I use a somewhat older subwoofer amplifier and it's
> tough
> to get it to full output even with the gain setting all the way up.

Shouldn't be that difficult to find a little line amp that runs on 12v.
Sounds like your subwoofer amp wants speaker level inputs.
You could find a pair of USB computer speakers and use the
amplifiers to drive your subwoofer amp.

Archived from groups: rec.audio.tech (More info?)

> >Car application. I use a somewhat older subwoofer amplifier and it's
tough
> >to get it to full output even with the gain setting all the way up.
>
> Is the amp expecting a feed tapped off a speaker output?

No. But 1v is too little to drive it adequately, especially on "quiet"
recordings.

> Can't you
> give it one? What's playing the mids and top of your car system?

Different amps. 1v may be too low for them as well. I don't know. Keep in
mind that the gain adjustments on car amplifiers tend to go down to 0.5v as
a minimum, with ~1v being more common. So to reach maximum output the
recording basically has to be close to 0dB. And with a lot of filtering
going on at the input (the amps are driving subs, woofers, mids, and
tweeters, all from independent channels), it drops the signal even more.