Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: blown240 on January 01, 2012, 02:13:13 pm
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I have a 1x12 4 ohm cabinet that I want to use for practice at home with my Fender 300PS. The amp wants to see an 8ohm cab. Is it going to be a problem using this 4 ohm cab? I want to make sure I don't damage my head.
Thanks!
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> practice at home with my Fender 300PS
This is absurd. Get a smaller amp.
> problem using this 4 ohm cab?
For lesser amps, maybe not. However the _BIG_ amps are very high-strung, fussy, and much too costly to risk it.
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I have to wonder if the output transformer's dual secondary could be re-wired for a lower impedance. First thing to find out: Are the secondary windings identical?
Otherwise I agree with PRR
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> practice at home with my Fender 300PS
This is absurd. Get a smaller amp.
HEY! Waddia got against big amps!!!! :icon_biggrin:
Jim
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300PS for practice at home??
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Right now the 300ps is all I got for a bass amp. Granted I have used it to play BIG clubs, but as it is, its all I got. I will get a different cab to play it thru. This thing has such an AMAZING tone with my upright bass going thru it! I will look for a used 8ohm 1x15 or 1x18 with a tweeter.
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One man's absurdity is another man's nunya. Its your amp, if you choose to use it as a feed trough for your hippo, that's your business.
Dave
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This thing has such an AMAZING tone with my upright bass going thru it!
And I'll bet you can't get that tone with any other amp? I can say the exact same thing. Yes, it's like driving a Ferrari in a 15mph school zone, but it's still a Ferrari! I can look/sound good at 15 as well as 150.
Jim
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Yes, it's like driving a Ferrari in a 15mph school zone, but it's still a Ferrari! I can look/sound good at 15 as well as 150.
Yeah, but I bet you can't get that big, beautiful, 200w Marshall Major, 8x12 stack in the trunk of that Ferrari. :w2:
Brad :laugh:
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It's a metaphor! It's a METAPHOR!!!! :laugh:
Jim
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at home, I practice with a small transistors Marshall combo. VERY GOOD voicing amplifier from 1985 or so. I guess a small PEAVEY would do a great job for bass. Use a compresser if you have one. Or use a SANSAMP bass processor ( small pedal preamp ) right into a mixer with headphones, you'll get kick ass tone garanteed ! Even better than your beloved setup.
Colas
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Haha, people used to laugh when they came in our Apt and saw my 100 watt Marshall full stack and I practiced with it. Course it had a master volume but still anything past about 1/2 of 1 or so and the neighbors were hearing it and feeling it.. haha..
Regards,
Don
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I can't imagine any harm that could come by playing at low volumes through a 4 ohm cab. High-power operation is where things would get ugly. If you're really worried, just connect a 4 ohm resistor in series with the cab.
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A huge 4 ohm resistor.
Dave
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A huge 4 ohm resistor.
An old 4ohm blown speaker greater than 25watts or so to use instead of a large fuse. Cut away the cone & basket, save the voice coil/magnet assy and tinsel connections. Remove the spider and glue the voice coil down into the magnet w/ epoxy. Now you have a speaker motor. Wire it in series with your single 4ohm speaker and you are there w/out any worries. You effectively have two 4 ohm speakers but only one that you actually hear.