Chienmortbb

What did you use to roll the edges of the fingerboard?

I agree Tim, but how else do we dispel the myths and utter ballcocks that some are convinced are true? You know the ones: Trace Watts are bigger than anyone else's (I love the sound of a Trace) Valve Amps are more powerful than solid state. Class D is weedy/unreliable (only the cheap far eastern stuff on E,I,E,I,O Express, BangBad, the Evil Bay and Amazoff.com). Sadly, most people will take the easy/lazy option, but we must still try to argue the truth.

Volts and current do have to coexist, in a resistive circuit, I think that going into phase shift, reactance etc. is a step too far for here. In fact, things have probably gone too deep for most already.

Mr Stub, I would fire anyone that used a SM58* except...the bandleader has one and is convinced has some magic inside. *There are some great mics out there that are not SM58s and are less money.

I am going to guess that these are "custom" versions of the Deltalite 2510 and as they are not available either, it's most unlikely that you will get a re-cone kit for it.

I have just updated the third part, AC Power, of this at the start. I did most of my theory 50 year ago, so forgive me if I have made an error.

We have only got 5 gigs booked for this year!

Capability Brown* - Voice *the band not the gardener (I believe he has passed, RIP)

The problem with Ohms law (it is not really a problem) is that without any of the three attributes, the others exist only in name. Yes, you can have a battery with a Pd of 12V but without a path for the current to flow through, the 12 volts has potential, but it's "all dressed up, no place to go". Similarly, you can induce current in a coil, but the only if it is connected to a circuit. I introduced a new term above, Pd, the potential difference. Volts are the units that measure potential difference, in the same way that amperes are the units we give to current. Confusingly, current is designated I, as using C would confuse things as capacitance is C in the electrical world. One of the things I often see is people talking about the Amperage. No such term, it is current measured in amperes. It is common and quite correct to abbreviate that to amps.

I have some right angle adaptor for Neutrik speakONs if that helps. Makes them much closer to the cabinet. Of course, they only fit some speakONs which I can supply and supply is limited.

One thing to be aware of when buying dye is to check that you select the right colour. Does anyone want to buy some white wood dye?

The LFSys Monaco would probably suit you well. I had one but getting a bit long in the tooth, I needed a lighter cab so swapped it for a 10" Monza. Neither cab has ever broken a sweat, and the only difference I noticed was that I had to turn up the volume slightly once I changed to the 10". Other cabs may suit you as well, and of course we can only recommend what we have experienced.

I must admit that I found designing much easier than repairing, so a good tech is to be admired.

Your experience matters as your experience is so vast that I again I bow to your knowledge, and I am glad you put the myths about class D to rest. I have also repaired ICEPower modules (I blew them up 😀).

Are those the ones that make Amp Techs have nightmares?

Agreed and if Airbus/Boeing/Lockheed made speaker chassis they would be carbon fibre. I also agree that 7 years is not unreasonable for a speaker although many will go on decades longer.

THanks for that. The term basswood is used for all varieties in guitar building, so which grows in the far east?

Great find.

I will be honest that my training did not include valves and I am ready to be shot down by @agedhorse or any real expert. As I understand is, Sag in power supplies adds to the natural compression of valve amps that may or may not continue in the pre-amp stages and is certainly true of the output stages.HiFi would demand that an amplifier is not used in its non-linear region to maintain adequate distortion figures (THD or THD+n). Any type of compression, overdrive or fuzz increases the distortion. Of course sag occurs at higher power levels and also happens to some degree on solid state amps using an unregulated power supply. Sag is a form of current/voltage limiting.

Basswood Linden Lime are all the same family.

I think the SQ range are a step up from the CQ. As a pro mixer, it would expect all inputs to be balanced on XLRs. If you need a jack input, you need to input jacks then it would be DI'd.

More to the point is that they cannot guarantee how the driver is used, although they invite damage with 500W RMS (800W clean).

Much better than the water pipes analogy that they taught us a college.

I am not fit to exist in such exalted company.

Very close to a reply that I was going to post, The way to create a 4 ohm load is with two 8 ohm speakers in parallel. I would have gone on to explain that despite looking like a simple machine, the drivers we use are complex. When Beyma published power compression graphs, the loss in power stated at way below rated thermal power. If my memory serves correctly, most LF drivers at least in the Beyma range were approximately 1dB down on power by the time they had been driven to 1/3 of their right thermal power. At rated power, the compression had risen to over 3 dB. The 4 ohms us that many amplifiers cannot supply the extra current needed to achieve the extra power. If you look at an amplifier spec, and it’s 4 ohm power output is not double the 8 ohm power output, then it is likely that the power supply is not able to supply the required current. Taken all these factors into account, There is very little to gain, if any, in going for a 4 ohm driver/cabinet. Two 8 ohm cabs, stacked vertically, with a decent amp is much better.