Mr. Foxen

Oh yeah, and a bunch of the tone is in the power section, so you need a DI that goes after the output, and a cab or inductive dummy load.

Open it up and follow the wires round, and get a meter on each speaker.

For Ampeg, new one under guarantee, all good. S/H, budget for a service when buying, they are a giant pain to work on when they start going wrong.

[quote name='dincz' timestamp='1338311001' post='1672561'] On this I have to say that's absolutely untrue. Every amp I've ever bench-tested could deliver a higher voltage swing into an open circuit than with a load connected. [/quote] How exactly do you measure voltage across an open circuit?

[quote name='dincz' timestamp='1338280996' post='1671926'] Why? Because he didn't mention instantaneous power. As written it amounts to perpetual motion. [/quote] Didn't specify anything. Output watt ratings are pretty much meaningless anyway, so it is fully valid to be able to have a rating above the consumption, because amplifier output isn't like mains output.

Power demands in music aren't constant, and capacitors are cheap.

Big transformers for bottom. The higher bit is a bit more interesting, C-cores are used in super duper mic stuff, apparently due to better high end performance, but I don't know if the advantage is too high for audio. Some of my very fancy amps have C-cores though, more exciting than the Partridge ones that are excellent but I have tons of.

[quote name='Dad3353' timestamp='1338252158' post='1671777'] Valves were (and still are...) used at RF transmitter frequencies, and radar. There is nothing inherently 'slow' about valves, at least in anything like audio frequencies. Cite your sources, please..? [/quote] [quote name='paul_5' timestamp='1338247690' post='1671738'] fact. [/quote]

[quote][size=3][font="Arial"]PLEASE DO NOT BID IF YOU HAVNT GOT THE MONEY TO PAY FOR THIS ITEM...[b]I WILL LEAVE BAD FEED BACK [/b]AND CALL YOU A WORD THAT SOUNDS A LOT LIKE "PETROL-TANKER" [/font][/size][/quote] Bet he won't. All seems fair really, you have to deal with a lot of numpties selling on ebay. recently had a guy open a case against me because shipping to Europe was 50p extra, and a guy saying my price for a 60s amp was too high because he could get a new one cheaper.

You have a Barefaced cab. Introduce a weight limit per band member based on the weight of all yours.

[quote name='paul_5' timestamp='1338247690' post='1671738'] That is a scientific fact. [/quote] Citation.

[quote name='paul_5' timestamp='1338247328' post='1671730'] valves are slower than transistors [/quote] Which bit is slower? I like SS in the rectifier stage.

[quote name='BB3000S' timestamp='1338246565' post='1671719'] Could be a sign they are incredibly narrow minded as well. [/quote] Not quite following the logic there?

When someone uses one amp for 30 years, that's a good sign they know what a good sounding amp for them is. If they are changing it all the time, either they want a broad range of experience to draw upon, or they just can't get a good tone.

[quote name='EssentialTension' timestamp='1338245644' post='1671699'] He was just talking about how it sounded to his ear. That is a valid basis and whether he's been inside it is irrelevant. [/quote] [quote name='Mr. Foxen' timestamp='1338244874' post='1671679'] Reliability and fixability matters, however much you like the sound it makes, doesn't count if it isn't making sound. [/quote]

[quote name='BB3000S' timestamp='1338245141' post='1671687'] Are you talking about me in the highligjted section? Did all of BC wake up on the wrong side today? My Ampeg is a B-15 reissue, not a POS in my mind but there you go... [/quote] That's the thing. How much amp work is that opinion based on? Ever been inside it? Got gutshots from when you did? Opinions don't gain validity without basis.

[quote name='AttitudeCastle' timestamp='1338244505' post='1671669'] If for you an SVT 2 pro plus what ever bass and cabs you use is sonic perfection to you, that's all that matters. [/quote] Reliability and fixability matters, however much you like the sound it makes, doesn't count if it isn't making sound. [quote name='umph' timestamp='1338244573' post='1671671'] Don't think oli owns an ampeg, he owns lots of amps with proper iron and non sag based power supplys though. [/quote] I used to own an ampeg, it would have been the worst amp I ever owned, except I have one that is 100v line out only which ranks it as slightly more useless on a potential basis, although it would have been cheaper to have converted than to have the Ampeg brought up to standard. Massively annoys me when people pick a boutique example of one thing and a cheaply made nasty POS for the other and think it makes a valid comparison.

[quote name='BB3000S' timestamp='1338243523' post='1671649'] You are cordially invited over to have a test run on my Aguilar DB-680 + Lab1000 + Bergantino AE410 rig. Maybe it sucks, but to my ears it blows my all valve Ampeg out of the water easily in terms of creamy goodness. [/quote] I would say that would be more to do with Ampegs being seriously badly made devices. I've not been into an Aguilar amp, but I've heard good things.

[quote name='BB3000S' timestamp='1338241586' post='1671602'] Preamp - yes tubes are definitely a good thing. Power amp - not so much a necessity. IMO, YMMV and so on. [/quote] Power amp valves are where all the goodness is for bass. [quote name='cytania' timestamp='1338239760' post='1671528'] A full on bass valve amp has lots of fuzzy goodness but can't suddenly be set to modern clean. [/quote] Properly engineered to be so, a full valve amp can be very clean. When people could be bothered to engineer them to be so, cab's weren't so much though.

I look for ability to turn up, owning their own gear and knowing how to use it (before I let them borrow mine), and willing to drive me places since that is my major failing.

[quote name='Chris Horton' timestamp='1338228928' post='1671223'] Ohh, that sounds messy and I don't want to get blood on my club. It's a nightmare to get off [/quote] Could probably borrow this guy's sander: http://basschat.co.uk/topic/177541-hahaha/

Preamp valve do the grit thing. Power valves do the girth thing, which is in a certain sort of compression that retains dynamics, and some different sort of harmonic distortion, which sounds a bit like what you get from an Aphex Exciter with Big Bottom, and makes everything more massive sounding.

[quote name='Lozz196' timestamp='1338204935' post='1670708'] Last time I used a 100 watt (solid state) amp at a gig, it was inaudible on stage, on full volume. I`m not tallking difficult to hear, it could not be heard at all - no matter what eq settings I tried. Whereas I`ve never had any similar problems with amps of 300 watts or more. So the technology and theory is fine, but I let my ears make the decision, if they can hear an amp it`s loud enough, if they can`t, it`s not. [/quote] Ah, I see where you went wrong. You'll need to add a cab or two to that setup.