In the course of this discussion, I came to appreciate that you are most interested in preserving the original or vintage sound of your speakers. Which is surely a worthy goal. That is why I suggested you can keep the frequency divider network as it is, and yet improve it by upgrading the parts inside. When you put an aftermarket L pad in there, there is a risk you will come up with a sound that is quite different. I look forward to your reporting the results of installing a new L Pad. By the way, I don’t see why you say my idea is expensive. You need to buy five high-quality resistors per speaker and if you want to get really crazy, you could also replace the associated capacitors but there is no need to spend huge dollars on those parts and the rest is DIY. There is a bUsiness, Madisound, that specializes in speaker parts. Anyway, carry on.
L-Pads. Speakers Awful Without Them, New Ones Ordered
I removed the L-Pads, the tweeters are way too bright, screechy above mids. Disturbing. Played my best source: R2R, Sgt. Peppers. Normally magnificent. Unlistenable!
Using my Chase Remote Control to cut Treble temporarily, until new L-Pads arrive.
I ordered these 16 ohm pads:
https://www.ebay.com/itm/153892668925
mine don’t have the issues he discusses, my insulation is modern, crossovers are tar filled metal cans, not much heat in 6.3 cu ft; these and originals were large ceramic body.
Will put the tweeter ’Brilliance’ ones in first, listen. Then add ’Presence’, listen, decide: leave in, or out. IN more than likely. They (orig and 1 set of replacements) have been IN for 62 years.
My original bronze ones came from original Fisher console, they were a custom version, still labeled ’Brilliance’ and ’Presence’.
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Many of these old Electro-Voice designs had L-Pads (16 ohm used AT37 Attenuators; 8 ohm used AT38). 2 way have one. 3 way designs have two: ’Brilliance’ and ’Presence’.
You can balance the drivers to each other, and to each space, and as you age, ability to hear highs diminishes, you can creep the tweeters up speck by speck. Imbalance due to irregular spacing: adjust each individually
I’m not going to measure and install a fixed resistor, I want future adjustability.
’L-Pads: Terrible Idea’. Bullshite, everyone who ever heard them loves them!
And, let’s not forget, the originals, with L-Pads, first one mono speaker, later two for stereo, are the designs that made these companies successful.
Using my Chase Remote Control to cut Treble temporarily, until new L-Pads arrive.
I ordered these 16 ohm pads:
https://www.ebay.com/itm/153892668925
mine don’t have the issues he discusses, my insulation is modern, crossovers are tar filled metal cans, not much heat in 6.3 cu ft; these and originals were large ceramic body.
Will put the tweeter ’Brilliance’ ones in first, listen. Then add ’Presence’, listen, decide: leave in, or out. IN more than likely. They (orig and 1 set of replacements) have been IN for 62 years.
My original bronze ones came from original Fisher console, they were a custom version, still labeled ’Brilliance’ and ’Presence’.
.................................................
Many of these old Electro-Voice designs had L-Pads (16 ohm used AT37 Attenuators; 8 ohm used AT38). 2 way have one. 3 way designs have two: ’Brilliance’ and ’Presence’.
You can balance the drivers to each other, and to each space, and as you age, ability to hear highs diminishes, you can creep the tweeters up speck by speck. Imbalance due to irregular spacing: adjust each individually
I’m not going to measure and install a fixed resistor, I want future adjustability.
’L-Pads: Terrible Idea’. Bullshite, everyone who ever heard them loves them!
And, let’s not forget, the originals, with L-Pads, first one mono speaker, later two for stereo, are the designs that made these companies successful.