Count Bassy

[quote name='ead' timestamp='1378330502' post='2198877'] OK I think I understand where you are confusing analogue and digital. The control aspect of class D amps are often driven my MOSFETs which act like switches (or indeed by digital controllers), however these components are controlling an analogue waveform and you have to consider the difference between analogue and digital in terms of how they are quantised. The amps are not digital in the sense that they do not deal with discrete voltage levels (steps). [/quote] I refer the honourable gentleman to my previous answer. Except to add that they do deal with discrete voltage levels. Off and on!!! Typed on my trusty analogue computer. [size=4] [/size] [size=4] [/size] Lot of smilies because it's really not that important.

[quote name='Mr. Foxen' timestamp='1378332082' post='2198914'] The bit that makes class D not digital is the lack of an analogue to digital conversion step. [/quote] Analogue comes in and is converted to a 2 state (On/Off) signal at the output transistors, albeit PWM. Filtering/smoothing and frequency response of the speaker then converts this PWM signal to an approximation of the original analogue signal. The output of the amplifier as whole is analogue (I've never argued otherwise ). The output devices are working digitally. I guess it comes down to whether you call PWM digital because its on/off, or analogue because ?????.

[quote name='BassTractor' timestamp='1378329935' post='2198857'] Hm. At face value, you sound a lot more serious than I was in the post you respond to. Whatever the case may be, I'm not able to have a serious talk about the degree to which certain elements in processes and concepts are this or that - in a language that is not my own. Nor am I willing to on this forum. [/quote] Perhaps I should have stuck a smiley on there! To be honest I'm not really that bothered either, it's all just words, and what they sound like is the important thing. I think the only digital/class D amp I've ever played through is GB shuttle 9 (Not mine) it was only at practice volume and sounded fine to me.

[quote name='dood' timestamp='1378328830' post='2198834'] My desk lamp is digital! I love lamp [/quote] This I agree with as long, as you ignore the 50Hz sine wave !

[quote name='4 Strings' timestamp='1378316285' post='2198567'] The old water analogy. Volts is pressure and amps is volume. You can't have water pressure with no water volume, nor can you have any volume flow with zero pressure. [/quote] I'm talking about the output/switching device, not the load. If you turn a tap off then you get no water flow (current), but the full mains water pressure (voltage) remains in the pipe work behind it. i.e. the full mains water pressure is lost across the tap. If you turn the tap fully on then you get a large water flow, but the pressure loss across the tap is practically zero (depending on the size of the tap and the flow). The pressure loss is now across your sprinkler or whatever (loudspeaker). Either way the energy dissipated in the tap is (ideally) very small.

[quote name='BassTractor' timestamp='1378327176' post='2198791'] Nonsense! It IS an analogue process. Keep your IMOs to yourself, sir. BTW, made me remember how some people would never get that a Compact Disc is an analogue medium (admittedly for digitally encoded info). [/quote] Nonsense! It is a one bit digital process. And a CD is not an analogue medium, any more than a computer hard disk is. It is a digital representation of an analogue signal. I.e. a collection of 1s an 0s, which are combined to represent and approximation to an analogue value.

[quote name='bassman7755' timestamp='1378321499' post='2198660'] Class D amps use pulse width modulation i.e. varying on-off pulse lengths, its still fundamentally (IMO) an analogue process since the pulse widths are "analogous" to the original signal voltage and have a theoretically infinite precision. In order for something to be "digital" it must involve encoding the signal as a number (which necessarily has finite precision). To explain it another way, a class D amp translates an analogue voltage signal to an analogue time domain signal, then back to a much bigger analogue voltage. [/quote] I think we're arguing over semantics here. I agree with what you're saying* and our two views not incompatible. In my view however because the output devices are either on or off I'd still call it digital ([i]albeit with a 1 bit resolution[/i]), as opposed to analogue where the output devices can be any state between on and off. The fact that it's a PWM output, doesn't (IMO) make it any less digital.If a bit in a computer is going on and off at varying intervals that doesn't make it analogue does it? Yes after the various output filters, and frequency response of the speaker, the resulting signal is analogue, but the output devices themselves are still working digitally I.e. they are on or off, like bits in a PC. [color=#282828][font=helvetica, arial, sans-serif] *Apart from: "In order for something to be "digital" it must involve encoding the signal as a number (which necessarily has finite precision)." I'm not sure on the details of digital amps, but I know that in digital servo drives the actual PWM is generally controlled by a DSP - a digital device.[/font][/color]

[quote name='ead' timestamp='1378293965' post='2198169'] There is much to disagree with in those two paragraphs. [/quote] Go on then.

[quote name='dood' timestamp='1378284729' post='2198005'] The reason that some D Class amps have been less reliable is that manufacturers have been answering requests for gear to not only be lightweight, but also as small as possible too. Therein lies the problem. Taking away all the space from inside the amplifier means in an overload situation the amp components get hotter faster and not being able to cool enough leads to component failure. Which leads to another interesting foible of the small amplifier revolution. In order to keep these high power amps in small boxes cool, smaller faster fans are used. Some have been noted to be a bit more 'obvious' when they kick up to full speed! The only other major reliability issue that i've seen so far is using really cheap far eastern machining - but this isn't limited to just D Class kit. I'm a little reluctant to take 100% opinion from an electronics engineer who calls D Class a 'digital amplifier' [/quote] Well a class D amplifier is digital in that its output devices are either ON or OFF, much like a digital computer. (Same as a switch mode power supply) That's the whole point. When off there is voltage across the output device but no current (hence 0 watts dissipated in the output device). When on there is a high current but (ideally) no volts across the device (hence 0 watts again). Hence the low heat generation.

[quote name='england smith' timestamp='1378056251' post='2195248'] I am a business owner that soptlights different artists. I was given the opportunity to interview Rocco, and I decided that his fans and fellow musicians should ask the questions. My website is www.spajuves.com [/quote] [color=#282828][font=helvetica, arial, sans-serif]I think the "Who are you" question was for Rocco Prestia, not for you!![/font][/color]

[quote name='Jus Lukin' timestamp='1377782028' post='2191719'] Matters of taste aside, I couldn't help feeling it was very loose, considering these are well regarded bass players. Above all else, it ought to be nice and tight! [/quote] It's a jam, not a rehearsed concert. .... and I love the rug.

[quote name='Phil Adams' timestamp='1377859409' post='2192822'] How accurate are modern electronic tuners anyway?? Do they vary?? Do they suffer from hot or cold?? [/quote] I have a Fender pedal tuner, an old Korg AT-12 , and a tuner in my Tascam GTR1. The Marshall and the GTR1 always disagree by a bit (not actually audible, but shows up when you swap tuners).

Struggling to understand this a bit. However good the bass, however tight the tuners, surely the ambient temperature will affect the strings directly? (All my basses stay pretty well in tune when kept at home). I did a physics degree, but I can't be arsed to work out what effect say a 20 Celsius change would have on a steel string.

I've got a MIM Urge Mk1, and it's a brilliant bass. Sadly don't play it so much these days as I reach for the 5 string more.

Actually having listened to it all the way through.. I quite enjoyed it. Beats a slap fest or a single bass doing a solo of the same length any day of the week.

[color=#282828][font=helvetica, arial, sans-serif][size=3]Pino Palladino[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Andy Fraser[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Stuart Zender.[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Nick Fyffe.[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Paul Turner[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Sting[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Geezer Butler[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Deacon[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Jean Jacques Burnell[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Paul McCartney[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Lemmy[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Jack Bruce[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Steve Harris[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Dougie Poynter[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Norman Watt-Roy[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Boz Burrell[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Paul Jones[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Rick Laird[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Ric Grech[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Percy Jones[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Roy Babbington[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Boz Burrell[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Dave Holland[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Jeff Clyne[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Mo Foster[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Hugh Hopper[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Yolanda Charles[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John "rhino" Edwards[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Chris squire[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Entwistle[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Danny Thompson[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Mani[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Andy Rourke[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Herbie Flowers[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Roger Waters[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Guy Pratt[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Mike Rutherford[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Peter Hook[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Mick Karn[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Roger glover[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Pete Cruikshank[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Barry Adamson[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Wetton[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Paul Gardiner[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Greg Lake[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Giblin[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Neil Murray[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Trevor Bolder[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Roger Waters[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Rick Kemp[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Cliff Williams[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Martin Turner[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]John Taylor[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Kev Hopper[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Roy Wainwright[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Alan Spenner[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Bruce Thomas[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Burke Shelly[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Glen Matlock[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Paul Simenon [/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Andy Pask.[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Steve Pearce. [/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=3]Pete Stroud.[/size][/font][/color]

Boz Burrel's so good he's in there twice.

Beats doing the same thing with looper though!

[color=#282828][font=helvetica, arial, sans-serif]Pino Palladino[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Andy Fraser[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Stuart Zender.[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Nick Fyffe.[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Paul Turner[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Sting [/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Geezer Butler[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]John Deacon[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Jean Jacques Burnell[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Paul McCartney[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Lemmy[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Jack Bruce [/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Steve Harris[/font][/color] [color=#282828][font=helvetica, arial, sans-serif]Dougie Poynter[/font][/color][color=#282828][font=helvetica, arial, sans-serif] [/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=4]Norman Watt-Roy[/size][/font][/color] [color=#282828][font=helvetica, arial, sans-serif][size=4]Boz Burrell[/size][/font][/color]

[quote name='thebrig' timestamp='1377676776' post='2190099'] I remember borrowing £15 off my sister to buy my first ever bass in 1967, which was a second-hand Burns Sonic, and it took me 10 weeks to pay her back, luckily, it was great, but if it turned out to be rubbish, I would have been gutted! Today’s equivalent would be a kid spending £200 on one of his bodged up guitars, and then finding out it was virtually unplayable, and it would probably take the kid a long time to save the money for another one. Ok, we are only talking a couple of hundred quid for his disasters, BUT, for some people that is a lot of money. Most of us have probably seen “Watchdog” and “Rip-Off Britain” where they highlight individuals who are conning innocent people, so why should we not do the same, and as MistyFingers says: [b][i]“And as a public service, if the threads here prevent one naive bassist in the making from buying one of his basses and being put off for life, then it's a good thing, surely”.[/i][/b] [/quote] [size=4]There seem to be a load of people slagging him off for what he does, and I'd agree that some of his ideas and descriptions seem a bit odd, but has anyone here actually bought or tried one of his creations? Has MistyFingers tried one?[/size] So come on then- Someone own up: Who here has actually bought or tried a Mark D Phillips' guitar and can say thus categorically state that they play badly, or don't work? If not then how can we possibly comment on them??. It just seems to me that there is a mob mentality at work here, Someone slagged this person off so let's all jump on the band wagon and take the piss out him as well. [size=4]After all he straightens necks, he polishes frets, he adjusts bridges and nuts, which are all things that a 'luthier' would do. How well he does these things cannot be judged by photo's on E-bay (well I can't tell from pictures anyway).[/size] [size=4]OK, he then does things like leaving holes where he's reduced the number of strings or taken pots out, which are things that a luthier [/size][size=4] (or indeed most people) [/size][size=4]probably wouldn't do.[/size] [size=4]I am not saying that he does a good job, or a bad job. I really don't know, but does anyone here actually know, from hands on experience? If so please speak up.[/size]

[quote name='xilddx' timestamp='1377610553' post='2189343'] [size=4](Can a carcass be alive BTW? And is this Phillips geezer dying or something?)[/size] [/quote] 1: I wondered if you'd spot that one. 2: Not as far as I'm aware but the way we are tearing into him conjures up the image of the vultures around a (this time completely dead) corpse. [size=4][quote name='Paul S' timestamp='1377610724' post='2189347'][/size] [size=4]I see a fairly simple solution - don't read about it or join in! A bit of harmless fun, plus of course the tool deserves it.[/size] [/quote] Yeah, I guess. I'll just walk by on the other side of the road and hope the BassChat mob never come for me..

Personally I'm starting to feel a bit uncomfortable with the amount of slagging of that we give this bloke here. I'm not in anyway defending what he does, but some basschat members are starting to act like a flock of vultures fighting over a not yet dead carcass, or a gang of playground bullies, in their eagerness to get in and give the bloke kick when he's down. Not very edifying, and In my opinion this is not basschat at it's best.

I think there's a thread about lead length & tone in the technical forum. Basically the 'Buffer', as in most active basses, will have low output impedance, so any capacitance in the lead after the buffer will have little filtering effect. With a passive bass the output impedance is far higher and the combination of resistance and cable capacitance acts like a low pass filter. Good cables have very low capacitance anyway and so are less affected.

[quote name='Ant' timestamp='1377082473' post='2183045'] only issue with my cab is that i wish i'd had money at the time to upgrade to the grill cloth! [/quote] Am I the only one who prefers the look of a metal grill to a piece of cloth?

All very clever, but incredibly dull to watch. Give me a proper band any day of the week.