OP I did read your entire post, but guess I missed your comment about fixed resistors and switches. I will refrain from commenting on any other of your posts, sorry. If you listen closely L-pads add noise.
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’.
.................................................
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.