Pinose Amp As A Pre-amp? |
Mon 30 Jan 2006, 18:22
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#1
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Newbie Group: Members Posts: 5 Joined: 29-May 05 From: Jacksonville - US Member No.: 66,239 |
Usually play my Guitar directly through my G5 Imac using a 1/4" --> 1/8" adapter on the end of my guitar cable... I'm using Amplitube and Guitar Rig software (Garageband too to import the tracks). Found a cheap Pignose Amp with pre-amp out and thought I could use it as a pre-amp to make the sound a bit richer - but the speaker on the Pignose doesn't cut out when used - is this normal? I can remove the speaker wires from the Pignose (internally) if I need to - does anyone know if this will work as a pre-amp??
http://www.pignoseamps.com/index.php?disp=...portamps&id=253 |
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Tue 31 Jan 2006, 19:45
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#2
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Moderator Group: Team Posts: 370 Joined: 19-Mar 03 From: Umeå - SE Member No.: 14,645 |
The sound from the loudpeaker/cabinet in a guitaramp is a very important component in the all-over perceived sound.
That's why the Line 6 POD has a switch for "direct out/amp out" at the left/right output. In amp-mode the POD:s speaker-cabinet simulation is disabled. It is also important that the signal-levels and impedances from preamp-out into "recording-gear/power-amp input" - have the proper ratios. Both for getting a good signal for your recording gear to work with - and to avoid distortion and unnecessary hiss. QUOTE If your Pignose "pre-amp out" were to have a specified impedance of have lets say 20 KOhms. If you were to connect a load from some strange indeed constructed poweramp with an input impedance of 200 Ohms. Your Pignose preamp would suddenly have to deliver current into a resulting impedance of 198 Ohms. thats roughly a 10 to the second power difference. Thats pretty close to short a short circuit - well not quite. If your Pignose preamp out is transistor driven - you will fry those transistors and possibly the powerpack and other components as well - in two seconds flat. However the other way around is completely safe - in comparison. A 200 Ohms output kan easily handle a 20 KOhm load. The 200 Ohm output will only feel the result as a 198 Ohm load instead of 200 - only a 1 percent difference. Cheers: Dixiechicken -------------------- ==================
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Posts in this topic
strangedogs Pinose Amp As A Pre-amp? Mon 30 Jan 2006, 18:22
monkeyboy23 The speaker not turning off is normal...it's j... Mon 30 Jan 2006, 20:46
dangt I would be cautious of running a amped guitar sign... Tue 31 Jan 2006, 00:28
lepetitmartien On the load issue… it's at least one if the am... Tue 31 Jan 2006, 01:43
monkeyboy23 The speaker not turning off is normal...it's j... Mon 30 Jan 2006, 20:46
dangt I would be cautious of running a amped guitar sign... Tue 31 Jan 2006, 00:28
lepetitmartien On the load issue… it's at least one if the am... Tue 31 Jan 2006, 01:43
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