Impedance matching
Posted: Mon Apr 04, 2011 11:40 pm
Hi Folks,
I built an isolation cab recently, my amp is a Princeton Reverb, which requires a nominal load of 8 ohms. My speaker cabinet that I place inside the isolation cabinet is 16 ohms.
They seem to work together ok, and a lot of sources on the net say it shouldn't ruin everything. I can crank the amp and not annoy the neighbours.
One thing that I have noticed is that when I've got my headphones on and the amp is still in the clean range, I get a little bit of distortion. It doesn't sound like tube clipping and my mic preamp is set well below the overload threshold.
Could the distortion be coming from the mismatch between expected output and actual load?
I haven't had a chance to try it with an 8 ohm speaker and am seeking other users impressions before I lay out some cash in the wrong area.
The Mic I've use is an SM57 which seems fine, though I did buy it 2nd hand.
I built an isolation cab recently, my amp is a Princeton Reverb, which requires a nominal load of 8 ohms. My speaker cabinet that I place inside the isolation cabinet is 16 ohms.
They seem to work together ok, and a lot of sources on the net say it shouldn't ruin everything. I can crank the amp and not annoy the neighbours.
One thing that I have noticed is that when I've got my headphones on and the amp is still in the clean range, I get a little bit of distortion. It doesn't sound like tube clipping and my mic preamp is set well below the overload threshold.
Could the distortion be coming from the mismatch between expected output and actual load?
I haven't had a chance to try it with an 8 ohm speaker and am seeking other users impressions before I lay out some cash in the wrong area.
The Mic I've use is an SM57 which seems fine, though I did buy it 2nd hand.