Craig Sawyers

RIP Jerry - a true legend.

This^. We miss you Knucks

This is it. The main profiles were water jet cut. The main thickness is actually two slabs bonded together so there is a bit of damping. The 401 used to be notorious for rumble, but that used to be as a result of the primitive chipboard plinths. Screwed hard onto a slate plinth it is silent. Now all the plinths and baffles I've seen (including mine) are the grey sedimentary slates. There is another type, which is the product of ancient volcanism, and under extreme pressure and heat becomes a gorgeous green colour. I have no idea what the internal damping of the two types is, but I'd like to experiment with the green stuff, if only for the look. The plinth above has been NC machined, and you can do much more adventurous things that way - like the superb looking chamfers.

Slate is a great baffle material. Inert and highly damped. I'm actually thinking of replacing the upper baffle on my LX521's with slate. My local "Monumental Mason" Abingdon Slate and Marble made a superb plinth for my Garrard 401, so they have the capability to do a great job.

Interesting linear profile - turns out that the radiation pattern for a (infinte) linear horn is exactly the same as a pulsating sphere. I actually had to look that up, because I'd never heard of a linear profile horn before https://www.grc.com/acoustics/an-introduction-to-horn-theory.pdf And sorry but it still looks like a workmate screwed onto a pallet, with a few bits and bobs welded on, whatever it sounds like.

Looks a bit like a Workmate mated with a bandsaw, and this was the result A speaker to give you nightmares - give me a kiss right on my midrange horn And how would you explain a pair of these to your partner...

All the above Kerry. Condolences to you and yours.

RIP Glen Campbell. So many songs that are part of my life.

^That has made my morning! Meanwhile http://i.imgur.com/gM3idmC.gifv

Jean Robic, winner of the 1947 Tour de France, would pick up a drinking bottle filled with lead shot at the top of a climb to aid his descents. He thought that the additional weight would mean a faster descent He clearly had not heard of Galileo.

The "sad" emoticon is there especially for DJT

Zombeavers. Ha ha ha ha ha!!! Reminds me of

I didn't think you were the kind of guy to be worried about that

Spoke to him about this. "Testing multi-kW audio amps" he said. Well he is quite involved in pro audio sound reinforcement. Eek.

Digital volume controls usually sound like a bag of hammers, at least in the past. But technology moves on and maybe this unit makes a better fist of it. But with my old Logitech Transporter I have the default set to 100% and use an LDR passive pre from Tortuga Audio to select input source and do the volume thing. All that said, would I like a DAC1541? Yup, without question.

Or as a guy I worked with years ago used to say "If a job is not worth doing, it is not worth doing well"

I'm early 20s. Only times three. AAAK how did that happen???

The thing to remember about variacs is that the current rating is the key parameter, not the kVA power rating. So at half voltage, you can still only draw 5A, same at 10% (so 11.5V) it is still 5A. The kVA rating is only of relevance when set to 100% of output. For that unit, the absolute maximum current is 6A and it was originally specced at 120V - so the absolute maximum is 720VA at an ambient of less than 50C (122F) The zero output current power dissipation of the W5MT is 9W at 60Hz. So it will run a bit warm even with nothing connected to the output terminals. A mate who has a beast of a variac, 3 phase 28A per phase. He has breakers, switchable primary current limiting lamps, and primary and secondary overcurrent breakers on the set to 32A. It is all boxed up to prevent any major fault condition causing a hazard. He is a bit foggy about what he uses such an animal for.

That is a good price for a 1kVA variac.

Not sure if those are woofers, tweeters or hooters

Happy birthday!

Have a great day, Todd!

For a single sentence the first one packs a punch on so many levels.

The ones with ears facing in opposite directions are politically neutral - both left and right facing. Or perhaps it is the old Startrek joke about Kirk having three ears, the left ear, the right ear and the final front ear.....

Bit of surgery, and away you go