essexbasscat

Nice one Bilbo thank you, excellent stuff T

pics please

The Pits list: Mustang Bl%!*y Sally Sultans of Swing Brown eyed Girl Hi Ho silver lining Oh, and Rocking all over the world Brick in the wall Urrrr...... Even the thought of it... godawful T

OK. Can I ask a few things ? I know there are a lot of questions here, please excuse a beginner trying to get a grip on this... The post by jacklondon initially describes how the current flow is influenced by input signal signal voltage, the amplitude of that voltage is influenced by the frequency supplied by the electrical signal generator, in our case the pick up ( +/- active ccts). The next part of jack's post goes on to describe the differences between amplifier classes as a function of how the valve(s) treat(s) the current and the steps taken to cope with the effects of current i.e. Class A = one valve (simply) and constant or 360 degree run time. Class B cuts the current cycle at the valve, so it has to be regenerated another way. Still one valve (simply). Class AB uses two valves to reclaim the 360 degree cycle (theoretically, with ? efficiency) Then copied from alien's post: "Most of these only have valves in the preamp, which more or less by definition runs as class A. When amp manufacturers call their amps class A, class D etc. they're referring to the power amp stage." I'm fine with the first bit, as that concurs with jack's explaination or valves in the pre - amp stage, but the second sentance throws me, as it seems fundamentally at odds with jack's explaination of the classes being described in terms of how the pre- amp operates. Q. Can anyone shed any light here please ? Not sure what lazily running the p-p class AB bit means though jack. Q. What's an H class ? Copied agaIn from alien later: "class ab2 amps have a less linear response than class ab1". I understand that Linear gain is uniform progressive while Logarithmic gain follows a curve when charted. Q. Can anyone explain what this means in real terms to the ear ? Q. If someone like trace etc develop pre-amps with greater numbers of valves, is this a way of promoting greater efficiency in the current modulation stages of the pre-amp? Once again, my real thanks to everyone that has taken the time to post on this thread. I've really learned something today. CHeers T

Anyone know which type the Ampeg B2RE is ? this is one interesting topic. Really appreciate the informed info. put together like this, it's gold. Cheers T

Yes, thank you to everyone. At last, this whole class thing is making some sense. mucho appreciated. Now for a Bi-amp question.... T

that's some great posts there, much appreciated, that really has helped clear up some of the mystery. That said, it would be interesting to have examples of each class. Also, did amp manufacture develop in the alphabetical pattern i.e class A came first, then developed onto AB etc ? what were the time periods / years ? How did it evolve over the years ? T

Played all sorts to pay the bills and put food on the table while studying for a career change in my 30's. Just used to remind myself that playing my bass was WAAAAY more preferable to working doing practically anything else to earn the money. My bass helped to feed me and pay the bills. My best friend at the time, earned far more with my bass than I paid for it. Just my 2p T

Thanks for looking that one up Lfalex That's the one I came across in researching this thing. All very technical, but I'm still a bit lost in relating the whole classification thing to the amps that we use really. As far as I can gather, class A amps were valve in pre amp and output sections and ran hot, typically around before the late 60's when transisters began to emerge. An Ampeg SVT could be an example of a class A amp ? I suspect, but I'm not sure, that class D are the most up - to - date type of amp that deliver the more 'holographic' type of sound, as characterised by markbass etc Not too sure about the whole classification thing really. Is there really a sound difference between them ? There sure is a difference between my Ampeg B2RE and my Sa450. The Ampeg sounds more 'vintage' and solid, while the Markbass sounds more holographic. anyone else come up with anything on this one ? It may be more a question about amplifier geneology / development perhaps ? Wondered about this one for a while now thanks again T

Hi folks Just done a bit of research on amplifier classes A, B, C,D etc to try and gain some understanding of the similarities and differences between the classes. A google search dug up a whole load of circuits and heavy, heavy info that made my eyes glaze over almost instantly TBH. I also did a search with the engine for this site, but dug up nowt. Can anyone describe in plain language, the significance of the whole amplifier classification thing ? thank you for reading and a big THANK YOU in advance for any postings the answers from this one is likely to lead onto a posting about Bi-amping cheers T

Not on the radar much these days, but worth a look, is the Peavey mark111 or iv series. A bit on the heavy side, but flexible on tone. Usually not too expensive either. T

tell us where it is, g'wan cue the BC wedding crashers

Definately a gift, without doubt. My busking abilities have grown from it. If you're doing the covers thing and you have a good ear, you will never have to read music at all to play year in, year out. What's more, if you are doing the covers thing with a good ear, you are streets ahead of anyone that needs to read to play. Oh, with the blessing of a good ear, TAB is redundant. Never used it at all. Not once. Ever. That said, the depth of knowledge and insight gained by learning to read music is invaluable, whichever instrument you learn to do it with. Just my 2p's worth T

Can't offer much insight into what the source of problem might be, but I did research these amps a short while ago and the general consensus of opinion was that they were quite loud. Impression is that your amp is not characteristic of the breed at the moment T

Impression I've gained so far is that around 30 (ish) people is average for one of these events, until the whole thing steps up a gear by being held at something like a hotel or something similar, with more rooms etc to increase capacity. T

[quote name='EBS_freak' post='786432' date='Mar 25 2010, 10:42 PM']Not true. They say "B. J. Goodfellow".[/quote] Yes, quite correct. T

[quote name='Bloodaxe' post='786421' date='Mar 25 2010, 10:31 PM']If my maths is working... Creekside's rate for the whole rehearsal studio (5 rooms) comes in at £395 from 10am to 6.30pm. So we'd need 40 bodies to keep it at £10/head. I'll be in the area next week, I'll ask what they've got booked for June (& if they'll do a deal). Pete.[/quote] Nice one Pete. 10 / 10 for keeping it going cheers T

Ah yes, very very interesting Russ. Of course, there are the GB Rumours that have Goodfellow on the pickups..... T

I paid around £300.00 for my Westone Thunder three. Through neck, low action, fast as you like. The electrics could be better, but that's easily solved at not too much cost. A little on the heavy side, but one helluva lot of bass for the money I've lost count of the amount of basses I've sold in the past that didn't cost that much, were basically very good intruments but flawed in some minor way. If only I knew then what I know now..... T

Ok folks Jacks chocolate factory has dropped out of the race for now, although an alternative may be on the way..... So, it's between Creekside studios and Molan's school for now. On the face of it; Creekside seems to be the least hassle option, won't require catering and is located Southern London. Readily available on the day ? Molan's school does have far more unknowns at the moment, located Northern London. However, if it is available, it will hopefully present more rooms to use, which will allow more flexibility on the day. Any other ideas / observations ? cheers T

But I ordered the ham and pinapple ! Where's the spicy beef ? what do you mean it's all gone ? who ordered the one with olives ? what do you mean you couldn't fit it all on the back of your moped ? Probably a good idea though T