Post by Rich (fbb90) on Nov 15, 2010 16:45:43 GMT -7
I had a little time today w/ no one home but me. I've been spending most of my playing time w/ my Mazerati GT and Mazerati. W/ the opportunity to crank things up a bit, I broke out the SRZ. I use the MV on the SRZ to control overall volume. Probably the loudest I ever used it was w/ the MV set to around 10:30-11:00. Until today, I've never used my Air Brake w/ it. Just to try something a little different, I connected the Air Brake between the head and speakers to see how it sounds w/ the MV hopped-up a little more.
WOW!!!!! What a difference! I dimed the Gain and MV. Tone controls and Presence were around noon-ish. It was super thick and chewy! I loved this amp the way I was running it before, but using the Air Brake, and cranking the MV adds a whole new level of thump and crunch. For a short time I even had the Air Brake set to zero! It was shaking the house w/ thunderous TONE! We had one casualty when my wife's family picture (newly framed, too) shook off the wall and smashed when it hit the floor.
I'm a big fan of the MV on this amp. But if you get the opportunity to run a SRZ wide open, enjoy! It's a whole different amp when you can get those EL-34s cooking! I think I'll be using the Air Brake for my overall volume control needs w/ the SRZ, and that MV will be permanently set all-the-way to the right!
'13 M12 '07 Mazerati GT '05 KT-45 2 Air Brakes 2 Z 1X12 Convertible Cabs 2 Z 2X10 Convertible Cabs
Gone but not forgotten...
'07 Galaxie '06 SRZ-65 LE #30 '05 Delta 88 #21 '03 Mazerati Head MAZ Jr NR Head RXJr Head
Post by troutstrat on Jun 29, 2011 11:10:48 GMT -7
I wonder if the wattage is changed when moving the master, e.g, wide-open @ 65watts and lower as you turn back? Either way, the tone from these amps is tremendous using the master above noon and beyond. Airbrake is a must for me with it.
Post by mtlrecords on Jun 29, 2011 15:33:23 GMT -7
I don't think lowering a master is the same as lowering the wattage. I tentatively will say the master volume is lowering the amount of signal sent TO the output tubes. A "scaling" circuit (like a Reinhardt amp with power scaling) lowers the voltage of the tubes and keeps the ratio of pre and power tube the same as the are routed to your speakers.
I am totally a layman though... and I don't have the technical know-how to explain it properly, so hopefully someone else can chime in.
Last Edit: Jun 29, 2011 17:45:34 GMT -7 by mtlrecords
G&L ASAT Custom Gibson SG & Les Paul Fender Jazzmaster
Dr. Z amps: EZG-50, SRZ-65, Remedy, 6545 Germino Classic 45 Marshall 1959 SLP
Mojotone 2x12 Dr. Z Z-Best 2x12 Orange 4x12 Germino 2x12
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