babadono

Mmmmmm...venison chili mmmmmmm

Or thread crapping honey pot 2

I I'd go with sumtin' like this Welcome to the forum

Damn Yankees!

Youz guys r blowing my mind Any of these manufacturers publish square wave response at say 300w out? Just curious

you must be vibrating by now

Pure Guava

Thanks for clarifying that, I may be a pervert but 14?

I hope she's a 21st century fox by now

it's mind over matter, if you don't mind it don't matter.

Why would one acquire this and not use it? Oh yea....life GLWYS

There's that room full o' horns again! No I keeps tellin' ya thems antlers

Is this a permanent or semi permanent location? If so solder baby solder. If you're moving again in a month, 2 months,6 months who cares.

Thanks dude the @The Dude Is there a power supply page also? So is the 2.7 ohm between DC rtn and chassis (R6) always in circuit? Or is there a jumper terminal on the back of the D75a just like the D75? Looks like pin 1 of XLR and sleeve of TRS at input jack is tied to DC rtn(signal ground, P16). Kind of hard to jibe this schematic with photos John Warren posted earlier. Well I'm rambling, just thinking out loud, don't know if any body is following this. But I will continue with the mods to my non A units.

Link to D75a schematic earlier in this thread is broken. Can someone re post it? For @Cantilope @John Warren? @The Dude?

Thanks @CECAA850 I did see that one after you suggested trying Google shopping. Where is this guy getting new D75a s ?

@John Warren Did you see my above couple of posts? I figured out why I was having trouble with 4 ohm loads. Now what I want to know/try to do is make a beefier +/- 10 zener source so I don't have to build 4 more regulator boards. The existing zeners are 10V 1/2 watt with 910 ohms series resistance to B+ and B-(approx 30V). To get the extra current needed I calculated 300 ohms and just barely 1 watt zener. But to be safe I'll just go with a 5 watt zener. I am surprised at how small a package those come in now a days and how inexpensive. Now the waiting for the parts to arrive.......

Yes SIr, that was it! Amp powers up now into 4 ohms. This is a GREAT way to end a Friday. The zener regulators that are in the amp don't have enough poop to keep my op amps of choice working when the amp is loaded with 4 ohms.

Well i have backed out all the mods except the bigger filter caps and better op amps and it still won't come up into 4 ohm loads. The +10 volts gets sucked down to almost 0. Building up a +10 and -10 volt little regulator board to see if I can keep the voltages up through power up .

So you're just in Saturday mode, cool

Ask them for the Thiele-Small parameters for that baby

Buy it now, it's only $200 grand https://www.ebay.com/itm/Electrovoice-30-inch-woofer-with-custom-wood-cabinet-MADE-IN-USA-RARE-EV-30/222832402630?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D1%26asc%3D47300%26meid%3D2bb85b8febcc413cb13cb80e043f5200%26pid%3D100011%26rk%3D2%26rkt%3D12%26sd%3D191595578887%26itm%3D222832402630&_trksid=p2047675.c100011.m1850 I remember hearing about these 30" Electro voice woofers growing up. They used them in a speaker they called the Patrician. Never saw or heard one. But I also remember vaguely hearing that they were hard to control and caused intermodulation distortion(?)

While you're at it make 1 or 2 for me Do they live across the international date line?

Don't be confused Mike. It don't make a lot of sense until you live in it for 30 years. As Forest Gump said _ _ IT HAPPENS