stevie

I've had a very quick look and the speaker seems to be happy in anything between 35 and 60 litres internal volume. The bigger the cab, the more bass.

I'm struck by the number of times 'increased sustain' is mentioned in the web reviews, as if it's somehow desireable. Still, the Gotoh is cheap enough to be worth a punt.

The new Chinese-built drivers from Fane look quite good and are well priced. I've not tried them personally but the manufacturer is competent and the specs are OK if you choose the right ones. They're not neo though. The 15/400 watt is under £50 (http://www.bkelec.com/Pro/Drive_Units/Fane/Sov15-425.htm) and the 125W 10" is £22.50. Good if you're on a budget. The 15 will certainly be better than what's in your cab at the moment. I suspect the 10 will too.

[quote name='waynepunkdude' post='433233' date='Mar 13 2009, 08:23 AM']I put one on my Jazz 3 weeks ago and it has improved the tone and resonance 100%[/quote] Interesting. I quite fancy trying one of these myself. Has anyone fitted one and not liked it? The problem with this kind of tweaking is that it is very easy to kid yourself. You simply hear what you expect to hear. No offense, but you know what I mean.

That's a very swish homepage. Good luck with it!

[quote name='Musky' post='430648' date='Mar 10 2009, 04:11 PM']It's not PRS that have blocked any videos. YouTube have taken down the videos whilst in negotiations with PRS over the size of the royalties - it seems to be more a shot across PRS's bows in order to weaken their bargaining position.[/quote] Aha, thanks for the update. I withdraw my comment in that case. Bit hasty there.

Perhaps the PRS will see reason and allow videos that are educational and non-profit making. What are the chances?

[quote name='EBS_freak' post='430620' date='Mar 10 2009, 03:46 PM']Typical.[/quote] We had a thread on the PRS a while back. They don't seem to believe in encouraging young musicians to learn (and then going out to play tunes that will generate royalties). The tab sites seem to be under attack from the American equivalent, too. I thought MarloweDK embodied the whole internet ethos of helping out your fellow traveller on this planet. Still, we have to keep Elton John in flowers, don't we?

[quote name='neepheid' post='429477' date='Mar 9 2009, 03:43 PM']What about the Seymour Duncan Antiquity?[/quote] Never tried them, but I suspect they are the pickup equivalent of gold-plated taps.

[quote name='alexclaber' post='429401' date='Mar 9 2009, 02:27 PM']But if you double the cone area you also increase the suspension size by ~1.4 and thus reduce the compliance so it makes less difference than you suggest, all else being equal.[/quote] I’m not suggesting anything other than that there is a relationship between fs and cone size. Lest we stray off topic here, we were discussing the statement: “Driver size and Fs are independent of each other.” Lots of things change when you change the cone size. [quote name='alexclaber' post='429401' date='Mar 9 2009, 02:27 PM']And more importantly once you load that driver into a cab you raise the Fs due to Vas being greater than the box volume. As Vas is proportional to Sd (if everything else remains the same) then the larger the speaker the more Fs will be raised by loading it into a cab of fixed size, so what you gained by using a larger driver for the lower free air resonance is lost once the speaker interacts with the enclosure.[/quote] What you are saying is that if you increase driver size from 10” to 18” and then take that 18” driver and stick it in a box designed for the 10” speaker you are not going to gain much from the driver’s extra size? Well, that really is a bit of a doh statement and I can’t for the life of me figure where you are going with it. The bigger driver will clearly need a bigger box. How does this relate to driver size and fs?

[quote name='Clockworkwar' post='429404' date='Mar 9 2009, 02:33 PM']Well I just bought a nice Trace Elliot cab from Stevie, I got it out the packaging and put it on its side and heard a rattle. I immediately thought DHL had been throwing it around for sports. Until I got a small torch inside the cab and realised it was a 5p, luckily my hands are small enough to fit in the port holes and I got it out. Has anyone else has this before?[/quote] So, when can I get my 5p back?

[quote name='xgsjx' post='429418' date='Mar 9 2009, 02:51 PM']I was with you all the way there until you mentioned "Tesco's Value chocolate sponge roll." That killed a good thing. I'm off for a donut.[/quote] ROTFL You know, the best thing about this thread is the heckling. Priceless! (I'll back at ya in just a mo, Alex)

[quote name='civilian_project' post='429400' date='Mar 9 2009, 02:25 PM']okay so say i cant find an original pbass pickup. What'd be your best suggestions for that lovely motown vibe? Jamersonesque. [/quote] I can recommend the Duncan SPB-1 for that, although flatwound strings will probably get you closer than anything else you can do.

[quote name='alexclaber' post='425679' date='Mar 5 2009, 12:52 AM']Resonant frequency is a function of moving mass and suspension compliance: Fs = 1/(2*pi*sqrt(Cms*Mms))[/quote] Exactly. This shows that there is a relationship between a speaker’s resonant frequency and its moving mass. And because there is a direct relationship between moving mass and cone size (double a cone’s area and you double its mass), there is also a relationship between driver size and Fs. Blindingly obvious really. Thanks for that. [quote name='alexclaber' post='425679' date='Mar 5 2009, 12:52 AM']So your answer is to use a thick heavy cone and loose suspension.[/quote] In theory, yes, but there are physical limits to what is possible. Still, if fs and driver size were truly independent, you would be able to produce such a driver. The fact that you can’t shows they are not independent. [quote name='alexclaber' post='425679' date='Mar 5 2009, 12:52 AM']The problem with a 1" woofer with an 18Hz Fs (assuming huge Xmax to get sufficient Vd) would indeed be related to radiation impedance but that is an extreme example.[/quote] Indeed, but in simple terms, the driver would have to have a cone made out of lead and a suspension made out of Durex. It would in fact cease to be a loudspeaker at all.

[quote name='escholl' post='427612' date='Mar 6 2009, 09:51 PM']i'm sad, i know. [/quote] There's nothing sad about being interested in how things work and are made. Watching Coronation Street - that's sad.

[quote name='liamcapleton' post='426416' date='Mar 5 2009, 04:44 PM']Copeland's great... but hard to hold a flame to Vinnie Colaiuta playing on Sting's solo stuff... check it out: [url="http://www.youtube.com/watch?v=9RbOFm8W5Wk"]http://www.youtube.com/watch?v=9RbOFm8W5Wk[/url][/quote] Wow! That is just stunning. Never heard it before. Thanks for that.

[quote name='Sharkfinger' post='426154' date='Mar 5 2009, 01:51 PM']So what I'm getting from this, right or wrong, is that by a rule of thumb the more cone surface area the more LF is produced, whether that be a single large driver (bass bin) or multiple smaller ones (8x10" 'fridge'). Or is my horribly over-simplifying matters making you speaker aficionados tut and shake your heads in exhasperation? [/quote] There are other factors involved, but yes, it's a reasonable way of looking at it.

[quote name='josh3184' post='425683' date='Mar 5 2009, 12:58 AM']I shouldn't have wandered into this thread again, I feel completely stupid now after reading that post![/quote] I thought it was a most welcome diversion, although not quite as hilarious as some of the other posts in this thread.

[quote name='Clockworkwar' post='426089' date='Mar 5 2009, 12:53 PM']What is the minimum airflow for a solid state amp mean't to be?[/quote] The airflow is related to the speed of the fan, which is related to the consumption of the motor. The latter should be printed on a label in the centre of the fan. Papst and Panasonic have a reputation for low noise and good build quality, although you are unlikely to find them in your local computer shop.

[quote name='wotnwhy' post='425404' date='Mar 4 2009, 06:32 PM']not a penny! though i did have a bit of a 'mare getting the old speaker out as the screws holding it in had spanner heads as opposed to screwdriver. and i didn't have any spanners...[/quote] So, all's well that ends well. And you have a spare speaker. Not bad!