The whole reason for getting in there is that external spraying makes a big mess inside; is "hit or miss" in terms of getting cleaner/lube on the resistor/wiper parts. A BRUSH DIRECTLY on those parts...
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The whole reason for getting in there is that external spraying makes a big mess inside; is "hit or miss" in terms of getting cleaner/lube on the resistor/wiper parts. A BRUSH DIRECTLY on those parts...
For what it's worth: Cleaning pots: You've got to take them apart and brush Deoxit directly on the resistor / wiper, etc. Then insert a suitable paper between the resistor and wiper and rotate....
Last sentence! Been there, etc. It gets beyond the hobby stage. Thing is, after some years, everything becomes unstable - connections, electronics degrade . . . and you don't realize it at first, the...
Not my call, but if it was me, I would head for a JBL shop or similar. As Richard says, those adhesives are unique; developed for that purpose. It looks to me like the cap was never installed...
Yeah, agree - Have been using the XLi 800 for 3 years now and have no complaints (DIY 4-way). It is a lot like the old D series Crowns, I'd say. I like the way you can configure the hook-up to your...
Vanity destroys everything in its path. The bane of human existence.
Wow. Interesting - we may never figure it all out. But, I'll bet we can get it working if you want. That Energizer was a very early solid state amp using germanium output transistors, as I recall. I...
[QUOTE=Mr. Widget; Never saw one or played around with one, but looking this over it seems pretty self explanatory. It is simply a stereo amp stuck on the back pf one of your speakers. The unbalanced...
Best wishes re all the above but may be wishful thinking. I purchased my 7C (7) in 1960 but as the decades rolled past it became increasingly difficult to keep in shape. Strange noises, internal...
+1!
Is Mike Sanders (Quicksilver Elec.) still up and running? I know Timbers used his stuff on mids at one time. I use his line amp. with good results - worth a check. Bruce Rozenblit has some...
Yeah, good thinking. They will last 40 years. The shop here is AFP Sound Systems, 127 N. Wixom Rd., Wixom, MI 48393. 248-669-9900. Forty miles NW of Detroit. Ck the www. You could call for a quote....
Re your post #11: Good example why JBL does not recommend re-foaming surrounds. It cannot be guaranteed "as new." The job I referenced above with 1-day turn around was a full JBL recone. Cost approx...
Hey - You're in NYC area, embarrassment of riches. That is an easy woofer to do, my local JBL guy did mine in a day. Just check for a near-by JBL pro shop. There is a map / service# on the JBL pro...
In my experience, those old crossovers last almost indefinitely. Very low current through those high efficiency systems. Rather, it is mainly a matter of how they have been used - damp, abused, pro...
You guessed it! Great source of info/advice. Need to get over there for a visit/update. But he's really busy.
Local JBL pro Jeff has used this driver combo for years crossing @ 5k Hz as you suggest. Says it's one of his favorite vintage combos!
The "potentiometer" type in JBL speakers are actually "L pads." The L indicating two arms of the circuit, one series and one parallel. This, theoretically, provides a constant resistance load across...
Agree. Hard to believe JBL discontinued the 2441. I was making a general comment, sorry to mislead, offend. Mike
When I was in the process of changing my old (1979) 375 dia to 2441 a couple years go, being a product development technician in engineering, I was . . . surprised to see how crude the machining was...
Hi Kay - I've done it 3 or 4 times using an exacto knife (new). Steady hand, very touchy. You've got to get down as close to the voice coil as possible without causing damage. Stuff tends to fall...
+1
Bottom line: THERE JUST ARE NO PARTS! Recently researched the aftermarket offerings for LE15 and the basic R is not even correct. Would have to re-tweak the crossover, etc. Loosing battle.
I'd say install what ever sounds best, regardless of the impedance stamped on the back. Back when those were designed - the age of tubes - the 16 ohm had some design advantages, I seem to recall....
And, so much depends on the quality / characteristics of any given environment. Yeow. One walk around a room with a pink-noise / RTA mic is a real eye opener. Help! Not sure installing these big...
15 watt / 1" length. (Mono, 8 ohm). I've also had good luck prying open the tin covers and applying Deoxit liquid directly to the wipers (brush, wipe clean).