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Snowblinder wrote:JohnnySomersett wrote:Snowblinder wrote:Borderline painfully loud.Two tubes out certainly makes a difference - but not enough!I tried this trick finally. I could hear no discernible volume difference. The only change I noticed was that it didn't sound quite as good running at half power. Less full sounding. The other two tubes went back in immediately.Did you adjust your impedance settings as well? That could have an effect.

JohnnySomersett wrote:Dr Tony Balls wrote:Snowblinder wrote:JohnnySomersett wrote:Snowblinder wrote:Borderline painfully loud.Two tubes out certainly makes a difference - but not enough!I tried this trick finally. I could hear no discernible volume difference. The only change I noticed was that it didn't sound quite as good running at half power. Less full sounding. The other two tubes went back in immediately.Did you adjust your impedance settings as well? That could have an effect.That's a valid point, I did (I'm always super nervous about impedances).you shouldnt be too nervous. there's some wiggle room in there where you wont be fucking anything up.

Snowblinder wrote:Borderline painfully loud.For sure... I've put my head up close by accident a few times and instantly regretted it Two tubes out certainly makes a difference - but not enough!Maybe we should get FM Tony to price something up?...discount via quantity , have it switchable 30/15/7.5w or 60/30/15w? Best of both worlds.

biscuitdough wrote:Those switchable wattage things never sound right unless they both disable 2 out of 4 tubes AND change the amount of negative feedback in the power amp so that it's appropriate for the new power level.The ones that change the plate voltage or switch from pentode to triode mode always sound a little off, at least to me.Maybe a 4x6V6/2x6V6 amp with the negative feedback scaling option, for 40/20w?Yeah, that would work. 40/20 is good numbers...with the 'full range' nature of the OR circuit, it'll likely be a loud 40w too!

Snowblinder wrote:JohnnySomersett wrote:Snowblinder wrote:Borderline painfully loud.Two tubes out certainly makes a difference - but not enough!I tried this trick finally. I could hear no discernible volume difference. The only change I noticed was that it didn't sound quite as good running at half power. Less full sounding. The other two tubes went back in immediately.The main thing I noticed was it started breaking up at noon rather than 2 o'clock on the volume dial (with my go-to guitar). I couldn't hear much of a difference sonically but I think I lost a bit of oomf in the lower frequencies - likely due to the actual amount of power thumping going down....that might be what you noticed?I used a dB meter to check, I lost 2.5dB with 2 tubes out. Make of that what you will.

Dr Tony Balls wrote:Snowblinder wrote:JohnnySomersett wrote:Snowblinder wrote:Borderline painfully loud.Two tubes out certainly makes a difference - but not enough!I tried this trick finally. I could hear no discernible volume difference. The only change I noticed was that it didn't sound quite as good running at half power. Less full sounding. The other two tubes went back in immediately.Did you adjust your impedance settings as well? That could have an effect.That's a valid point, I did (I'm always super nervous about impedances).

I actually like the sound of mismatched impedance between a cabinet and amp. It does cost you a little highs and lows and output, but it can be really useful. When I did this with a Bassman and an 8-ohm 2x12 cab with Eminence Wizards I was totally getting sounds similar to the Cherubs' last full length. Nice!

JohnnySomersett wrote:I lost 2.5dB with 2 tubes out. Make of that what you will.That's about right. Half power, when you do the math, is -3dB.

Like FM JohnnySomersett, I would be super intrigued with an OR120 circuit, but instead of 15 watts as he mentioned, or the standard OR 100+ watts, was something like 30 or 40 watts. In the past I've just run an OD pedal into mine and tamed its volume with that. But I've recently started plugging straight in and getting all of my drive from the amp, meaning the gain/volume control is at about noon. And it's fucking loud. Borderline painfully loud.

JohnnySomersett wrote:Snowblinder wrote:Borderline painfully loud.Two tubes out certainly makes a difference - but not enough!I tried this trick finally. I could hear no discernible volume difference. The only change I noticed was that it didn't sound quite as good running at half power. Less full sounding. The other two tubes went back in immediately.