flyfisher

It really depends on how the multiple speakers in each cabinet are wired up - in other words what is the overall impedance of each cab? The bottom line is that the amp can drive two 8 ohm cabs, which really means it can drive an overall 4 ohm load. As long as you don't connect a load that is less than 4 ohms then you won't do any harm. My guess (and it really is a guess - you should check the manufacturer's specs) is that the 4x12 marshall cab is a 4-ohm overall cab, made by connecting the 4 x 15ohm speakers in parallel and the 2x10 is an 8-ohm overall cab, also made by connecting 2 x 15ohm speakers in parallel. If my guess is correct, then you can safely connect [u]either[/u] cab to the amp. BUT, if you connect them both then you'll present the amp with a 2.6 ohm load and you'll be getting into 'magic smoke' territory.

Thanks. We didn't fancy driving across London on a friday evening so we took the train, hence instruments only. Rock 'n' Roll eh?

Pretty good PA - 4x Mackie SRM450 heads and 2x JBL subs. Not sure how much power was driving it. To be honest, I thought the sound guy pushed for a bit too much volume at the expense of vocal clarity, but maybe I'm just not a great fan of bleeding ears. Backline was a TE for Bass and Laney and Marshalls for guitars. I think the TE was a 715, if you could confirm that I'd appreciate it - I was impressed with it but forgot to note the model number.

We played Babalou last friday - great little place. Can't make it this week though as we're playing the Hertford Corn Exchange. Have a great one!

[quote name='blackmn90' post='1034639' date='Nov 24 2010, 12:38 AM']I disagree with you as the idea of an amplifier is to make the sound louder, but obviously a 15inch speeker is different to a 12 and a 10 inch.[/quote] So why are most bass amps full of tone-shaping controls?

I'd never heard of the Rocstor, so I had a quick look at the 850. Apart from the range of interfaces, I couldn't see anything particularly special about it. The review I read says it contains a Hitachi 3.5-inch, 7200rpm SATA hard drive. I use a number of these in my video editing PC and have not had any problems, so I'd guess they'll be OK for audio applications. I also use a number of LaCie and Western Digital external drives (firewire and USB2) without problems. Out of interest, what interface do you use? eSATA is by far the fastest option and effectively allows the hard drive to run at its native speed, something that USB2 or Firewire cannot do (yet).

[quote name='Bass Awkward' post='1034058' date='Nov 23 2010, 04:13 PM']6> Should I wire the resistors in after the speaker, so that any inherent capacitance in the resistor load will not affect the tone of the speaker output? Or is that bunk theorising?[/quote] Many types of high power resistors are wirewound and can have significant inductance. Whether this is a problem at audio frequencies might depend on your Bunk-Theory-Ometer. If you want inductance-free resistors then look for thick-film types - but they're not cheap.

[quote name='crez5150' post='1033931' date='Nov 23 2010, 02:33 PM']Absolutely..... it's all about Branding not product.[/quote] I tend to agree. I've got little breadth of knowledge when it comes to bass guitars, but I'd bet that they are pretty much all capable of doing a good job as a musical instrument - witness all the pro players that use a wide variety of different makes and models. If there was one 'best' model then all the pro players would be using it. So it all, I think, boils down to branding. If your favourite player uses an XYZ then you'll be influenced to use the same. And if you don't have a favourite player and are just starting out then you may only have heard about a Fender P-bass, so that's the one you buy. And let's face it, it's hardly a bad choice is it? But it won't make you a better player. A great player will make a bad bass sound great but, sadly, it won't work in reverse.

Difficult to advise specifically without knowing your set up but the above should get you going. I would just add: 1. An unhurried run though will pay dividends 2. take your time, don't get flustered, understand the various ins and outs 3. label all the controls so there's no need to 'think' on the night. I use small post-it notes

Thanks for that lead. I looked it up but the the commando 12 doesn't have a sliders for the tone controls, whereas the one I used did have. But searching a bit more, I now reckon I was using a 715 combo as it looks the closest to what I can remember on Google Images. The 200W rating would also explain why it put my 70 Ampeg combo to shame. I may have to start raiding my piggybanks for some gas cash!

[quote name='daz' post='1031908' date='Nov 21 2010, 09:12 PM']Also this does not apply anywhere in the USA, South America, Asia, Russia or Africa.[/quote] I thought Basschat was [i]"the UK bass guitar players' forum"[/i] or does its unofficial lending library operate worldwide? Go on then, back to the list.

[quote name='daz' post='1031817' date='Nov 21 2010, 08:26 PM']As far as im aware most lending libraries pay the author once for the book and thats all.[/quote] If you'd like a bit more awareness: [url="http://www.guardian.co.uk/books/2010/jun/28/authors-fear-cut-library-income"]http://www.guardian.co.uk/books/2010/jun/2...-library-income[/url]

Maybe not one that [u]everyone [/u] would guess, but good enough for me.

I played a gig on Friday at Babalou in Brixton with a provided backline that consisted, in my case, of a smallish TE combo DI'ed into the main PA. The passive input was taped over because (the sound guy said) the socket was broken, so I was a bit nervous that things would be OK with my Fender MIJ P-bass. I needn't have worried because the sound was awesome and really punchy and I was only running it a little over half levels. I've never used a TE rig before and know little about them, but based on this little outing I'm rather impressed. Thing is, I was smart enough to make a mental note to write down the model number, but stupid enough to actually forget to do it! The overall size seemed smaller than my Ampeg 1x15 combo, so I'd say it was probably a 1x12, but I suppose it could have been a 1x15. Is there anyone here, perchance, that might know what model combo it might have been?

[quote name='EdwardHimself' post='1030978' date='Nov 20 2010, 11:08 PM']Imo it doesn't really work like that with books.[/quote] I'd agree with that, but only because I think books and music are completely different. I may not be typical, but I reckon I'd struggle to name half a dozen books I've read more than once, whereas music is listened to time and again. So, in that context, passing around a book for people to read once without paying must surely be damaging to the author's income, in the same way as copying music, yet it seems to be regarded as less of a problem. I'm not trying to be judgemental, I'm just interested in the inconsistent attitudes. Perhaps it's a consequence of the musical community here? Perhaps a writer's forum would be horrified at the thought of circulating published books yet be OK about doing the same with music? Interesting though (well, I think so).

Don't libraries have to get permission or pay royalties to lend books? Selling a used book is slightly different in that the numbers of readers will be quite small compared with a lending library, or a round-robin, free-loan system when hundreds of readers are likely to be involved, meaning a significant loss of income to the publishers and authors. But, I wasn't trying to make a big deal of it - I was just interested in the apparent difference in attitude to sharing books and music. How about if I buy a new CD of some band and then offered to pass it around to everyone on Basschat?

I've already got a copy, and very good it is too. Just one thing though, whenever the subject of copying music comes up there's a fairly large body of opinion that it's a disgraceful activity that robs the artists of their deserved income. Isn't passing this book around doing much the same thing?

[quote name='cheddatom' post='1027906' date='Nov 18 2010, 01:33 PM']What would I do with the ferrite rings?[/quote] Run your signal wires through them and they attenuate any Rf signals. Computer cables often have such things fitted to then to reduce their own RF emissions (as required by various EMC standards). However, in practice, you'll probably find these types of ferrites easier to use: [url="http://www.maplin.co.uk/module.aspx?moduleno=32799"]http://www.maplin.co.uk/module.aspx?moduleno=32799[/url]

Depending on the design of the jack socket, it might be possible to fix the problem by bending the contact for the plug tip. Your description sounds like it may have lost some of its 'springiness'. Having said that, if you're going to open it up anyway and you're OK at soldering, then a new socket wouldn't go amiss.

I noticed the video director cut to a great shot at 20s. Nice camerawork. Sums up the bassist's lot in life really. Still, they got the hang of it later on Great stuff though - wish I could aspire to something similar.

[quote name='markstuk' post='1024407' date='Nov 15 2010, 11:06 AM']I'm trying to work out why they say it would improve the sound... I suspect they might say it provides a more stable power source than a bettery.. I remain to be convinced :-)[/quote] There are few more stable and interference-free power sources than a local battery, so I'd be surprised if they use this as justification - although we are into snake-oil territory Personally, I can't see anything wrong with remote power, if it's implemented correctly. As previously pointed out, mics have been remotely powered forever and it would cost peanuts for amp makers to implement. I suspect it's all down to the 'standard' jack socket used on most guitars. Just one of those things.

While you're trying to figure out the cryptic clues (hint: search for user 'OBBM', he makes cables), one way of 'branding' a cable as your own is to use some garishly coloured heat-shrink sleeving. Maplins supply it, among many others) and it's easy to apply a ring (or more) of sleeving to your cable(s) for easy and undisputable identification.

Does it really matter?

[quote name='GT40Graham' post='1020397' date='Nov 11 2010, 05:03 PM']I think you have to put the Sgt.Pepper into perspective, when you consider what went before it in terms of albums and recording techniques, it was and still is an iconic album. Remember that it was done with 4-track tape recorders and is a landmark recording. It's now 43 years old so it's not surprising that today, it's not considered quite as awe-inspiring as it was then, things have moved on, it doesn't have quite the impact with younger generations that it has with some of us oldies.[/quote] Absolutely. It's a bit like the Apollo. Landing on the moon was amazing enough but doing it with 1960s technology makes it truly astonishing.