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all tube bass amp avalibility

#21
Mr. Foxen said:
Its pots and jacks fixed straight to pcb that bust most often. Probably see more issue with PCB mount preamp valves, probably due to people swapping pre valves more often and pulling out the joints. PCB mounting still with a chassis connection for strength is good enough, since that is the issue, relying on pcb solder for structure.
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That's my biggest teeth-grinder with the Ampeg SVT-7 Pro. That stupid input jack is mounted directly to the PCB. After a few years of plugging and unplugging, that thing just can't hold up. I've fixed my friend's and he's had it professionally fixed before and after me, and that damned thing just will not stay stuck to the board.

I vote rip it out and install a chassis mount, and wire it to the board properly. It's not the PCB's fault, it's the cheap way crap gets mounted to it that wrecks reliability.

B-string said:
Power tubes on PCB's is not the best idea IMO either <snip>
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I'm personally of the opinion that everything the user will mess with should not be PC mounted... but that transformers need to have the correct form factor and be well supported, structurally, if soldered to a board.

Tubes, IMO, even preamp tubes, shouldn't ever be PC mounted. People will tube roll and cork sniff 'til the cows come home, which means the PCB will suffer stresses they're just not made for. Chassis-mounts for the sockets, for the win.

I'm the same way with all jacks and pots. If they're PC mounted they're asking to get jostled just so. If they're wired, almost no amount of jostling will shake 'em loose. As far as all of the resistors and caps and (SS) diodes and such, stick 'em to a board all day. The average user does not need to poke around with them at all.

But I'm anal when it comes to my wiring. I don't even like to see exposed solder joints. Shrink-tube them things.
 
#23
100w and a Barefaced Vintage or two (substitute Dually if that is your bag). Volume comes from cab. Watts barely figure. Probably more so with valve amps, since the OT is what chokes off your lows if you cheap out on it. My 100w valve head has an OT nearly as big as an SVT one because its ridiculous spec.
 
#24
A 300 watt tube for a 300 watt SS. To replace a 1 KW SS a 1 KW SS or 1 KW tube (yes someone does/did built one).
Some will point to how tubes sound better overdriven. IF you plan on running the amp beyond it's clean output then a 200 watt tube amp can "replace" a 300 watt SS. For the 1 KW SS you will need a 700-800 watt tube.
 
#25
When you look at how much power your speakers can turn into sound, you realise you don't need a 1000w head, regardless of topology though. The comparison isn't direct because a valve amp will probably have better compression and bandwidth limiting than a SS head comes with built in. If you are really good at DSP, you can match up the power and output, but that basically doesn't happen. Fact is, in practice, you can get away with a lot less power using a valve amp, which is down to the fact power isn't really very relevant to sound.
 
#29
Where is the MATAMP bass head even listed? their website just has guitar heads. What exactly is there bass head, how much does it cost, and where do you get it? Is it completely custom or something??
Couldn't see spending some serious cash on an untried one of a kind head or something... experimenting with that kind of money is not a good thing.
 
#34
obimark said:
Thanks, but how do I even know that is a bass head- GT200 Doesn't sound like a bass head to me, doesn't say bass anywhere on the site. and if it is how much does it actually cost??
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https://www.facebook.com/pages/Midwest-Matamp-Ltd/181588148532510 is the US distro.

Matamp don't cheap out on transformers, so most of their amps will work fine for bass, in the same way as oldschool heads did.

Interested to see some shots of the very well made AD200 MK3, to contrast with the tacky ones I keep seeing.
 
#37
Just get a Reeves and be done with it ;);

Custom225.jpg


Hard to beat a powerful, great sounding, immaculately hand built US amp brand new for $2500 with a 5 year warranty.
No PCB mounted tubes, jacks, pots, or anything.

Plenty of info here on talkbass if you do a search, as well as an extremely in depth test in Bass Gear Magazine.
 

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