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Sounds like there is an issue with the amp, no way does this amp lack in volume or clean headroom. I have run mine into a 410hlf and I doubt that the speaker would handle much more than 6 and 6 max. You have the right idea - take it back and get it fixed or get a replacement. The bias leds will blink each time you take it out of standby, then should stop after about 30 seconds - the best idea is not to play anything through it for 30 seconds after it comes out of standby while the autobias does its thing.Hello guys, i'm new here. I bought SB300 this week from Thomann shop ( I live in Poland). I haven't tried it before buying (only 100T which was lovely, but I wanted more headroom) It arrived on Thursday and i plugged it the same day. I was very excited and like it that day, but afterwards, i realized that i had to set gain to at least 5-6 and master volume 5-6 to get any dynamic sound out of that amp I(on vintage channel) . I was even able to increase it up to 8-9 on gain and 7-8 on master. The sound was then very dirty and generally amazing, but The problem was i couldn't get clean tone out of vintage channel at loud volumes. Also i suppose, as for "stadium" amp, the power wasn't enough (I was able to put gain on 6, master at 10 (!) and i was still able to stay by the cab. Yesterday and today another thing happened. After switching amp on, it was losing or changing tone from time to time for a second or something, and sometimes sudden distorted sound appeared (most often for the first 20-30 minutes). Also leds on bias system used to blink (all together) from time to time for few seconds. Do you have any idea what might have happened? bad tubes, something happened during shipping? I'm going to return it on monday.
I tried it with Fender Aerodyne PJ bass (passive), some other "no name bass" which was active. Cabs: svt 410hlf and Basson 8x10
Damn! Got the SB300 & SVT810 dialed in beautifully tonight.
Sounds amazing. As good as the NV412 ???? I dunno. But it's bl@@dy sweet. Punchy like a60s Batman punch - 'Blammo'
And clear as this beautiful night we're playing outside on.
Rig and EBMM STINGRAY 5 with Elixir rounds. & Warmoth 51P with Fender flats.
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I ain't allowed to show the poster/so behind us. A touch 'adult'........
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Check out my almost invisible photoshop effects. Amazing huh?
I'm finding that the pull-deep acts very different on the two channels. On channel 2, it acts as I would expect, adding bass and a mid scoop.
But on channel 1, it seems to add a lot of low mids or high bass, with no scoop. It actually makes the sound thicker in the mids. I really like that sound but I wanted to check if that was normal. Anybody else notice this?
Also I've never had an amp or cab with tolex, but the tolex on the top of the amp seems a bit crudely glued. They are not actually separating, but from a couple of feet away the seams along each side at the top kind of look like they are. Should I add some extra glue to make sure the seams don't open up, or is it more secure than it looks?
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The SVT810 is pretty similar to the NV412 really. A li'l less lows and perhaps a li'l less hi's as well. But it sounded righteous with the SB300.Hey Rod -
Curious your thoughts on the SB/Ampeg combo now that you've gotten to spend more time dialing it in. Seemed you weren't super turned on by it at first, but may have gotten it dialed in? I haven't had the chance to play my new Ampeg cabs yet - they sound fantastic in the living room, but am dying to get them out and about...
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