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50w-100w Valve Owners Thread

Dunno if this will help or not, but my little 5 watt Epiphone it's-supposed-to-be-a-guitar-amp sounds great, but if your idea of good bass tone is the 'P-bass w/flats thru a B15' route, you may not like a guitar head.

That it does! I've been there and done that. Except it was a Jazz Bass. I used the VJr + 112 + MIM J for recording for about a year straight. Great, great tones! Very full "round" bass if you use it at moderate volume and mic it.
 
Veering a bit here...which cab did you use? I'm still shopping for one to pair with mine.

The matching VJr 112 cab. It sounded great with bass or guitar, really. I'll attach a demo from years back where I ran the guitar and bass through the amp. MIM J both pickups picked, Jay Turser LP neck pickup. Ignore the vocals. It was from before I could sing well at all (or thought to use a click track). :p

http://www.soundclick.com/bands/page_songInfo.cfm?bandID=1089216&songID=10349211
 
I think around the 400 - 600 range for the Sovtek... depending on where you are.

50 tube watts is pretty loud. I've used a 30w amp with 2 15s and did just fine - drums, 2 guitars, and keys. Not a quiet band, but we try not to be TOO loud. If you push those tube watts, you will start to get some natural distortion, and that's ok, unless you are looking for total clean sound... in that case you need a high watt SS head.

What if find with the low watt tube heads is that you don't stick out in the mix - I think a lot of bass player are used to hearing them selves kind of stand out with all these high power heads. With the small tube amps, you sit in the mix better.

I like low watt tubes (got a little bastard in the mail), but I also like some SS stuff. Been using a TC Classic450 the last couple times I played.... BUT, I had the pre turned up to about 4/5, and the Master on about 3/4, and that was plenty of volume with a single 15.

Awesome input!

The thing about The Sovtek 50w bass head is that it really won't distort with the toobs I have in there (sovteks obv.). Its all about the headroom. :D
 
Awesome input!

The thing about The Sovtek 50w bass head is that it really won't distort with the toobs I have in there (sovteks obv.). Its all about the headroom. :D

That's cool... I'm interested in particular brands of tubes (pre or power) that would allow for more clean headroom. Not really looking to change tone or anything, but recommendation on brands that stay clean?? 12ax7 and 6l6...

I find when using my 30watter that if i keep the volume down about 1/2 on the bass, and crank the amp a little past half or 3/4 up, with a light touch on the strings, I can get a really nice clean, but woolly, warm tone with plenty of volume. If I dig in on the strings, it starts to get nasty, and if I crank the volume knob and dig in a bit... well, we're getting into face melting territory!
 
That's cool... I'm interested in particular brands of tubes (pre or power) that would allow for more clean headroom. Not really looking to change tone or anything, but recommendation on brands that stay clean?? 12ax7 and 6l6...

I find when using my 30watter that if i keep the volume down about 1/2 on the bass, and crank the amp a little past half or 3/4 up, with a light touch on the strings, I can get a really nice clean, but woolly, warm tone with plenty of volume. If I dig in on the strings, it starts to get nasty, and if I crank the volume knob and dig in a bit... well, we're getting into face melting territory!

Try swapping your V1 12AX7 with a 12AT7 to slow breakup. If that doesn't do much, try a 12AU7. You'll lose some of the meltdown capability but it should increase clean headroom a bit.
 
That's a pretty big mismatch...isn't the amp rated for a 16 ohm load impedance?

16 ohms from the main jack and 8 ohms if you use both jacks.

Anyone know of any problems running a b25b with a 4 ohm cab.

Don't do it. You're putting your amp at risk for damage, especially if you're just using the main out. If it's a 4 ohm cab with an even number of speakers you can rewire it for 16 ohms for safe use with the amp.
 
How about one of these. Just put 4 new Sovtek power tubes in, sounds great. Run it through an Epifani PS115 old school for days!!
 

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Ok. Thats what I was thinking. Saw a great deal on a Avatar 410 that is only 4 ohms but not cool if it is gonna kill an amp. thanks Just curious though how would you rewire a amp from 4 ohms to 16 ohms?

You rewire the speakers in the cabinet. Either they're 16 ohm speakers or 4 ohm speakers. Either way, you can make the cabinet work for that head. It's just a wee bit of different wiring.
 
Dunno if this will help or not, but my little 5 watt Epiphone it's-supposed-to-be-a-guitar-amp sounds great, but if your idea of good bass tone is the 'P-bass w/flats thru a B15' route, you may not like a guitar head.

Man, I've been meaning to replace the 12AX7 in my VJr. with a 12AU7... maybe get a little more headroom out of it. I've definitely gotta find some time to do that. :hmm:

5sg.
 
You rewire the speakers in the cabinet. Either they're 16 ohm speakers or 4 ohm speakers. Either way, you can make the cabinet work for that head. It's just a wee bit of different wiring.

+1 to that. It's potentially an easy fix. If the cab is 4 ohms, it may be four 4 ohm speakers in series/parallel configuration. In that case, you can rewire them in series and you'll have a 16 ohm cab. If they're 16 ohm speakers in parallel then you can set them up for series/parallel to get a 16 ohm load.
 
The matching VJr 112 cab....
Thanks for the clip!

Oddly enough, I bought the head here in town @ GC, but they do not have the matching cab.

Man, I've been meaning to replace the 12AX7 in my VJr. with a 12AU7... maybe get a little more headroom out of it. I've definitely gotta find some time to do that. :hmm:

5sg.
What tubes came factory in yours? I've got a EHX pre and a Sovtek power, but I understand that they don't always have the same tubes at any given time.
 
I used my Mesa 50 Caliber + for a few basement rehearsals through a 1x15. Sounded pretty sweet. Sometimes I'd use my VT bass and bypass the pre and other times I'd go straight into the front. Always sounded killer. I don't have pics but I have a video of me playing through it. Sounds like DeLeo's tone on Big Bang Baby. (At least I think so)