dincz

[quote name='visog' timestamp='1432231562' post='2779544'] Interesting. A low 'B' has a frequency of 31Hz so in theory the channel you mention should rip the fundamental right out of it? I know that our ears work more off the overtones to deduce the actual note played but even so, it's slightly counter-intuitive (to me at least) to filter out frequencies higher than 30Hz? [/quote] I play only a 4-string but even the fundamental of the low E should drop almost 12dB with the filter on. I agree that it seems counter-intuitive. I was originally planning to mod the filter to operate at 40Hz but after hearing how little tonal difference it makes at 75Hz, decided it wasn't worth bothering.

Much the same experience here. My channel strip has a 75Hz (12dB/oct) HPF and to be honest it barely affects the sound of my bass while keeping out the nasty subsonic stuff.

[quote name='Chienmortbb' timestamp='1431698772' post='2774098'] fans can be replaced although good quiet ones can be expensive. [/quote] Yes, but they're particularly problematic in 1U amps. They're so small that they have to run much faster to pump enough air. Not sure what the replacement options are in this case.

According to Yamaha, all their 4-string basses come with 45-105. http://faq.yamaha.com/us/en/article/musical-instruments/guitars-basses/el-basses/801/7044

[quote name='tauzero' timestamp='1431284542' post='2769641'] It's not just the area of the cone that counts, it's how far the cone moves. [/quote] Exactly. Think in cubic inches rather than square inches.

[quote name='Rich' timestamp='1430996788' post='2766652']Shostakovich and Puccini and Brad Paisley[/quote] One of the many trios I can't get on with.

[quote name='Lord Sausage' timestamp='1430721572' post='2763886'] I thought the wattage as irrelevant to power/volume.[/quote] Irrelevant is a bit strong. If it really was irrelevant then we could all use 1 watt amps It's one of several factors.

A bit of a rant on power ratings: [color=#141414][font=verdana, geneva, lucida,]A long time ago when the earth was dark and a watt was a watt, you could safely assume that an amplifier's power rating was based on the product of RMS voltage and RMS current at the specified distortion figure (somewhere around the onset of clipping) with a sine wave and could be maintained continuously for a period limited mainly by thermal considerations. With few exceptions, they could meet spec on a bench test.[/font][/color] [color=#141414][font=verdana, geneva, lucida,]Admittedly, that kind of test doesn't reflect real world applications but it does give a basis for comparison. Now we have "peak" ratings which is sometimes taken to mean short burst (how short?) or "program" capability and sometimes the product of peak voltage and peak current. And "RMS" power which could be burst or continuous but was commonly taken to imply continuous.[/font][/color] [color=#141414][font=verdana, geneva, lucida,]On the bright side, at least the pro audio and MI worlds have been spared the insult to intelligence of "PMPO" and similar nonsense.[/font][/color] [color=#141414][font=verdana, geneva, lucida,]Most manufacturers don't state the measurement methods or conditions and consumers are left with no basis for comparison.[/font][/color]

[quote name='tauzero' timestamp='1430527762' post='2762404'] But according to the links I posted above, it'll deliver it (the specified power level) for at least a minute. Good job no-one just parrots stuff they vaguely remember hearing, isn't it, otherwise companies could finish up with far worse reputations than they deserve. [/quote] Even Behringer don't caim a continuous rating of 3000W. Their power amp specs usually list maximum power and RMS power separately. It may well deliver its specified RMS power for at least a minute. The 20mS burst figure came from Uli Behringer himself. I don't have links at hand, but my memory of this is better than vague. In any case, neither maximum nor RMS is defined in Behringer specs. An independent review by Gear4Music said: "Initial measurements were made using 20 millisecond bursts at 1 kHz into 8 Ohm, which produced a peak effective voltage of 61 V – corresponding to an output power of 2 x 465 Watt (not accounting for THD & noise). With a 4 Ohm load the iNUKE NU3000DSP delivered a healthy 59 V which converts to 870 Watt per channel. With a 2 Ohm load, the “emergency brake” cuts in after 3 seconds, and the reduction from the initial 2 x1700 Watt to a less brutal 2 x 900 Watt is quite noticeable." I don't know how I gave the impression I was bashing Behringer. In fact nothing could be further from the truth and I've often defended them against uninformed and unwarranted criticism - on other forums and on BC (see post #15 in this thread for example). I've owned several of their products, including an EPQ900 power amp, but I didn't buy it expecting 900W continuous power - and once again, even Behringer don't claim that.

[quote name='discreet' timestamp='1430472787' post='2761698'] So the Behringer iNUKE NU3000 power amp in reality provides only 1500W RMS @ 4ohms? Feeble! [/quote] It certainly won't do 3000W continuously. I seem to remember that Behringer measure maximum power using a 20mS burst - not very meaningful for bass.

[quote name='tauzero' timestamp='1430471298' post='2761669']although if they don't actually say RMS, they're peak, which is 1.414 times RMS). [/quote] That number's good for voltage or current but square it for power i.e. 2

[quote name='72deluxe' timestamp='1430396730' post='2760986']let's hope production isn't moved to Behringer City in China[/quote] Having their own manufacturing facility in China enabled Behringer to up their quality control, having previously been at the mercy of their Chinese subcontractors. I've never owned any of their early Chinese-made gear but never had problems with the later stuff.

[quote name='DanH71' timestamp='1430141590' post='2758321'] Just bought a T2AL 250V off amazon UK.[/quote] Just for future reference, the "T" in the fuse's type number indicates time delay, i.e. a slo-blo fuse. Good luck.

Playing on the first few frets, I find it impossible to keep the thumb behind the neck without holding the bass differently. It does give extra damping possibilities however.

Something in a similar vein: http://basschat.co.uk/topic/209005-ngd-what-treble-guitars-on-a-bass-site-whatever-next/page__view__findpost__p__2095656

Lou Reed's "Berlin" album - with a bit of Jack Bruce as a bonus.

From the manual: "COMPRESSOR THRESHOLD control: determines above what input level the Compressor functions. Full clockwise rotation disables the Compressor entirely. The LED illuminates yellow any time the input signal exceeds the threshold level set by this control." Where have you set the threshold? If you turn down the threshold, does the yellow LED flash with signal?

[quote name='spectoremg' timestamp='1427099182' post='2725629'] Have I seen some cabs with a series option on the backplate? [/quote] Hartke HX112 is selectable 4/8 ohms.

Very likely a power supply decoupling cap. Easy fix for a tech but I'm way outside your territory so can't advise, Good luck.

My first bass - a Vox Cougar bought s/h in 1970 (not my photo): [URL=http://s1070.photobucket.com/user/dincz/media/Vox.jpg.html][IMG]http://i1070.photobucket.com/albums/u493/dincz/Vox.jpg[/IMG][/URL] Still got it.

This shows bass boost centred at 50Hz but the same thing applies. Notice that maximum boost is at 50Hz but a range of frequencies either side are also boosted. The slope/width of the curve depends on the specific design/amp. [url="http://s1070.photobucket.com/user/dincz/media/opamp15_zps5denf2ei.jpg.html"][/url] As far as the cab is concerned, it doesn't suddenly cut off at 42Hz but rolls off gradually. It will still work at 30Hz (to some degree depending on the design) although much less efficiently.

A king walks into a pub ...

Are there any trim pots on the Yam's preamp board? If not, a decent tech could do a simple mod to pad down its output level. A couple of resistors and 10 minutes work should do it.

Thanks for the tips. I didn't make myself clear. I'm wondering if it's possible to polish the body to a full gloss finish so as to avoid the shiny spots that show up against a satin finish.

No, my hearing is fine. I just wish people wouldn't mumble.