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The big hurdle will be finding the 2342 horns, and then adjusting the low pass of the crossover for that woofer. There are other horns you may find just as satisfactory. Member Zilch—now...

The empty spaces in the cabinet is where the collectible/saleable components were. If you got in for less than $200 or so, you did OK for a pair of D123.

In the fifties to mid sixties, factory...

If you are using the redrawn GT/Giskard/widget 3155 crossover, that is the crossover Giskard/4313b used in his 4345 build with 2123, large format treble on 2311 and 2405 uhf. If you use a 2235 and...

It escapes me why you would go to a three-way 4333 when you could fit a near-clone four-way 4344mk II into the same floor space using only components from your 4355 build, though I would get some...

I think JBL probably feared that with beryllium mid and uhf the K2 would have cannabilized Everest sales drastically.

I would be interested in having some correct blank cards-- like a few sets.

No reason for alarm. The lesser brother L20T's (not 3) are being mined for their tweeters, so there are clean 115-1's lurking in many places, including eBay and my garage. I have mine because I...

I'd forgotten that driver is underhung. Anybody know if the LE8T-2/2115 is also?

Right. I've seen that range of prices too, but have no idea what money has changed hands in an actual deal. I first heard that speaker at San Francisco's Eber Electronics in the '70's, and even...

A lot less than you might think. It may be that no one has ever priced that speaker except people who find them at garage sales and want to sell them. Sometimes it's hard to know when to stop...

If you have the CC cards all you need to do is correlate the information in the 5235 manual Tables 4 and 5 with Specifications sections 5-1 and 5-2 and change the loads accordingly. Google will turn...

Admirable thoroughness and excellent handwork. Very refreshing to see something like this done.

That's a nice score. If you run across a stack of decent Dynaco, Fisher, Marantz, or McIntosh tube electronics in your travels, you will have a time machine to the days when '57 Chevies were new. ...

For detailed specs please make contact with very knowledgeable reconer LH member 'edgewound' via private message here or through his Facebook page I believe under Upland Speaker Repair.

The early D130's are known to have narrower gaps. Not sure when the change was made, but probably by the mid-fifties. Coils made for the majority of D130's may not fit or may be so tight as to be...

I see the D130 doesn't have a cone. The other one also?

Not sure when the differences between the D130 and the 130A/B/C would have been fully established. The D130A may not be exactly like either; I don't know. Those look quite early and very clean. I...

I read somewhere long ago that the problem with using two different drivers over the same frequency range is that the system will decay twice as many ways. That's probably approximately true.
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Great!

Mentor GT states that the 4345 was set up with asymmetrical slopes. You might be able to approximate that with the STD 10B. Member BO went with the LR and worked with Bryston to get a card tailored...

Yeah, "steep waveforms of explosive loudness" (1976 catalogue copy for the 375. I still have my well-worn copy). Love the expression. I suppose in a hard-driven sound reenforcement situation that...

You've refuted a claim I didn't make. To say there is no certainty x is not the same as saying there is certainty non-x. I was just trying to show one of the assumptions being made.

I too recall...

The really ridiculous part is that there is no certainty the sound heard is created by the system on camera.

Fatuosity, long a key assumption in hi fi promotion, in certain situations has been...

Although you will find primarily JBL discussion here, there is also some appreciation for Altec, Tannoy, Klipsch and TAD and passion for historic Lansing Co. And any brand or era you could think of...

Would that be David Davidson?

I think I saw at least one good idea in there. Separate woofer boxes with the woofers moved up in the panel to minimize floor reflections in the upper bass--you will...