davio Posted January 27, 2005 Share Posted January 27, 2005 Hey guys, I'm selling some equipment that my roomate has to a friend of mine. It's a Sonic 610 cab with a Hartke 2000 head. The head puts out 200W @ 4 ohms but the cab is rated 600W RMS @ 4 ohms. My roomate's band used to use this rig but I've started playing with them so their old bass player (who is a guitarist) can play guitar and I have my own equipment. Getting to the point, my friend who is thinking about buying this stuff asked me a question which I didn't know the answer to. He asked if there is a way to take the existing head (which is rack mounted) and couple it with a power amp to give the cab the power it deserves. I know that I can't send the output of the head to a power amp because it would blow the amp, but is there a way to bypass the power amp part of the head and only use its preamps? It has both solid state and tube preamps in the head but I don't really know anything about this. My friend would like to buy both head and cab because they're priced very well and in decent condition but would he have to just skip the head and get something else or can he beef it up? Help please! What would you do? Link to comment Share on other sites More sharing options...
zeronyne Posted January 27, 2005 Share Posted January 27, 2005 You can use the effect send jack. According to the downloadable manual, the Eff Send is post eq and post compression, so you lose nothing in that regard. Just Master Volume. "For instance" is not proof. Link to comment Share on other sites More sharing options...
davio Posted January 27, 2005 Author Share Posted January 27, 2005 Awesome! So, to clarify, I plug eff send into the power amp and power amp into cab? Do I then use the vol knobs on the power amp for master vol? Link to comment Share on other sites More sharing options...
mcbn Posted January 27, 2005 Share Posted January 27, 2005 Sounds like it. The eff send should be a line level send, effectively a "preamp out". Use the volume on the power amp for the master volume. Link to comment Share on other sites More sharing options...
moot Posted January 27, 2005 Share Posted January 27, 2005 Use the volume on the power amp for the master volume. If your head has a "Pre Gain" that also works for volume control. I do this once in awhile when I need to be really loud. I set my power amp at 75% and use my pre knob as a master. "He is to music what Stevie Wonder is to photography." getz76 I have nothing nice to say so . . . Link to comment Share on other sites More sharing options...
Mr. Phil Posted January 28, 2005 Share Posted January 28, 2005 no it doesnt work like that. You can use one amp effectively as a preamp (running from a direct line out on one, to the effect return on the other, or the input on the other). But you will end up blowing the second amp out if you try to daisy chain them. http://www.briantimpe.com/images/LDL/dots/blue.JPGhttp://www.briantimpe.com/images/LDL/dots/black.JPGhttp://www.briantimpe.com/images/LDL/dots/fuscia.JPGhttp://www.briantimpe.com/images/LDL/dots/grey.JPGhttp://www.briantimpe.com/images/LDL/dots/orange.JPGhttp://www.briantimpe.com/images/LDL/dots/purple.JPGhttp://www.briantimpe.com/images/LDL/dots/red.JPGhttp://www.briantimpe.com/images/LDL/dots/yellow.JPG Link to comment Share on other sites More sharing options...
zeronyne Posted January 28, 2005 Share Posted January 28, 2005 Originally posted by Mr. Phil: no it doesnt work like that. You can use one amp effectively as a preamp (running from a direct line out on one, to the effect return on the other, or the input on the other). But you will end up blowing the second amp out if you try to daisy chain them.I don't think this is the original scenario he is describing. He's talking about bypassing the power amp portion of the head and going straight to an outboard power amp, and then to a separate cab. It'll work fine. "For instance" is not proof. Link to comment Share on other sites More sharing options...
davio Posted January 28, 2005 Author Share Posted January 28, 2005 Thanks so much for all the info guys! Mr. Phil, I'm confused by your comment. By not daisy chaining amps do you mean that I shouldn't send the speaker out of the head to the in of the power amp? I knew that much. Or did you mean not to do what they are suggesting and send eff out to in on the power amp? Link to comment Share on other sites More sharing options...
73 P Bass Posted January 28, 2005 Share Posted January 28, 2005 I think Phil thought you were going to send a post gain (ie. a speaker out) into the power amp. "Start listening to music!". -Jeremy C Link to comment Share on other sites More sharing options...
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