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Deleted
Last edited by jjang1993; 11-10-2022 at 06:53 AM.
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07-23-2021 06:13 PM
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Originally Posted by jjang1993
The difference in maximum SPL between 25 WRMS and 35 in similar circuits is barely audible in loudness, except that it may push the point of breakup a bit higher to give a bit more clean headroom. Traditional SS amps have never generated the SPL that tube amps of identical rated output power could generate, for many reasons. But good current class D amps and selected other SS designs are now pretty much equal to tube amps with the same rated output. So it’s not surprising that a Quilter 25 watt head puts out as much sound as a 35W tube amp into the same speaker. The “extra” 10 watts don’t up the max SPL by more than 1 or 2 dB (which is barely audible at best) at full rated input voltage.
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You many not be able to answer this but my main question comparing the two Superblocks (US vs UK) is which one has more clean headroom? From the original amps, I think of the UK amps as breaking up sooner, but what about these SS amps?
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I have both, but they have never been switched on in the same room at the same time. Yet, my feeling is that the US version has more clean headroom, notably in the 57 Tweed mode. It has more midrange girth than the 61 and 65 modes. As well, adding Gain past noon does not add distortion in an abrupt way - no coarse sawtooth, just a little hair. Yesterday I played a nylon-stringed Yamaha NTX 700 through this amp and a Toob Metro 6.5FR cab. The sound remained fine all the way to the point when the guitar started howling. The acid test is how an amp-cab combination cuts through in a band setting. I'll be wiser after next week's band camp, where I'll take both 6.5" and 12" cabs, the SuperBlock US plus the BAM200 amp as a backup and for bass. The cabs have a 7 dB difference in speaker sensitivity, so the small ones do need a lot more power for the same oomph. Plus they spread the trebles wider. What I know already is that NY guitarist Greg Ruggiero has done an outdoor dance gig in Central Park with a 7-piece band, using the SuperBlock US and a 10" Toob in the 9 volt, 1 W mode. The solo is perfectly audible on a cell phone video clip which is otherwise so crappy I won't share it.
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Very good! I've been undecided about which archtop to take to next week's jazz camp. It's going to be my trusty Emperor Regent. That guitar is still brighter than an ES-175 for example, but excellent for the comping role there will be plenty of, due to another guitarist (with ES-175) in the same band, plus the ever airtime-hungry vocalist. BTW, placing the Metro on the floor further enhances the bass end.
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Originally Posted by Gitterbug
The down side to this is that the reflected sound is a phase salad, so you lose some tightness and clarity as frequencies drop. But it also makes your sound bigger in the same way that some delay/reverb modes do.
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Originally Posted by nevershouldhavesoldit
I switched to Quilter about 4 years ago after almost 5 decades of Fender and Mesa. I love ToneBlock 202. It's like a Marshall stack in comparison to this little guy.
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Originally Posted by nevershouldhavesoldit;[URL="tel:1136211"
you explain the physics so well
and in your other post before too
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Originally Posted by nevershouldhavesoldit
I struggled with this phenomena many years with different ways, tilted back legs, some plastic foam boards under the amp etc but only thing that has worked was an amp stand.
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Originally Posted by Herbie
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Originally Posted by ccroft
Tour of Gibson Custom Shop
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