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In Reply to: RE: New pair of DIY VOTT / A7-800 Crossovers almost done posted by used-hifi on March 26, 2016 at 07:33:23
Lawrence,Thanks, but I actually avoid terminal connections, whenever possible, in my crossover execution. KISS rules.
Hard-wired, wires wrapped around and soldered, Wonder Solder Classic.
Partially-built photos ( 3 above ) show this.
On amplifier, I am converting this Easter weekend to Cardas Silver Rhodium short speaker posts / terminals, ( so I can swap for out-of-absolute phase recordings ). All else is soldered.
I also eliminated the terminal connections, on the stock ALTEC 515B and 802D drivers, and soldered the speaker wires directly to the tabs holding the voice coil wires, and tie-wrapped the speaker wire to the driver frame ( to eliminate damage from inadvertent tugs ).
That is better sounding to my ears !! Wonder Solder in all cases.
Jeff Medwin
Edits: 03/26/16Follow Ups:
Hi Jeff.
Are the large gray cylinders capacitors? I have not seen that type before.
Nice open pot as well.
Yes sir Kyle, a newer type of cap.
Look up, and see reviews on Clarity Cap DTAC MKP. The cap I use can do high current I rms= 64 A. and it has an ESR if 1.3 mOhm at 100 kHZ.
The pot is a nuded ALTEC 10 Ohm pot from a stock 801 Crossover. Please notice how I have eliminated the metal terminals, and wired two paralleled 14 AWG wires ( equals 11 AWG ) directly to the pot's internal elements, "skipping" the terminals with their dissimilar metals.
I find it important to match driver levels ( 802D to 515B ) to 0.1 dB, and do so by ear, hence, a pot gets used.
Working on a second DC Type 45 SET stereo DIY build - started in earnest - tonight.
My ALTEC VOTT speakers are done for now. Hooray !! Need to break-in all these film caps.
Jeff Medwin
97.90.71.201
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