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Hello everyone. I have owned a Krell KSA-250 amplifier since purchasing it new in 1990. Over the years it has had several issues that required shipping it back to Krell for service. (4 times, out...

I own a Harman Kardon 930 receiver that has had most of the capacitors in critical sections replaced with Elna Cerafines. The four main power supply caps were also replaced with new ones of a higher...

I own a JBL SG520 preamp/controller that is in very good condition. It has recently been given a clean bill of health by my tech. It does not have the wood side panels though. Anyone have any idea...

I believe I have seen the foam edges applied that way on a pair of 12" Celestion woofers too.

Hi Joe. The upgraded crossover fit into its stock location inside the back of the speaker. Zipplok

Hello everyone. Here are a few pictures of my upgraded L220 crossovers I recently completed. The resulting sound improvement was well worth the effort. Zipplok

E-Speakers.com

Hello Epoch5. I have upgraded many an L100 crossover using Audiocap Theta film and foils (3uf and 8uf) and have never been dissapointed with the resultant sound. Neither has anyone else I know who...

Try Bill at Great Plains Audio. (405)-789-0221.

L220 L55 L45 L212 (L212 with original boxes!) Altec Model 9 Pioneer HPM1500 AR303 6-Marantz Imperial 7 ACI Orions Cerwin Vega DX9 ADS300c 4 ADS300i JBL SG520 Krell KSA250s Krell KBL ...

My list is simple. I will mix myself a sturdy Bombay Gin martini, walk into my listening room, power up my Krell KSA250s amp, KBL preamp, SBP64x D/A converter and MD-1 CD turntable, sit down, relax,...

Thanks Zilch!! I have also done similar work to my L220, L45 and Altec Model 9 crossovers. (and many others too numerous to list)

I just thought somebody out there might like to see a finished crossover project I undertook for a friend. They are the crossovers for the later version L100. I don't know how they would measure, but...

Hello everyone. Could someone please direct me to where I might view an Altec Model 9 crossover schematic? I did an initial search but could not locate anything that specific. Thanks in advance.

Thanks Audiobeer!! I believe there are a pair on Ebay right now. Do you know whether having the magnets "recharged" on these would make an audible difference?

Hi everyone. I own a pair of JBL LE5-9 midrange drivers that need to be reconed. However, I was told by JBL that the recone kits are no longer available. Does anyone know whether there are...

I own a SG-520 Preamp/EQ and have read a few posts regarding it. It was given to me by a friend and is in excellent condition. Seems to be a quality piece of equipment though I do not have a need...

Hi Mr. Widget ! I sure appreciate your feelings on "modifying" vintage JBL loudspeakers. They are true family heirlooms that should be passed down, untouched, from generation to generation. I...

Hi Squibcake. If you wish to get the most out of your L100's I reccommed rebuilding the crossovers using audiophile parts. I rebuilt two pairs using new L-pads, Audiocap capacitors and silver...

Try Harman Japan. They still have both the white and grey cone kits for the L220's 14" woofers. They might even have replacements for the 15" passives too.

They also have 16uf caps available.

Hello Maabx. Solen has 15uf caps available directly from their Quebec, Canada office. I have bought directly from them many a time. Check their website. www.solen.ca/caps.htm 450-656-2759

Hello Don C. If you decide to part out your L55's, I would be interested in buying both crossover assemblies. Let me know. Thanks, Zipplok

Thanks Don C and Zilch!! Both crossovers are behaving the same way. The previous owner of these has since told me that his house was hit by lightning while these were hooked up to his stereo inside....

I upgraded the crossovers in my pair of L55's and followed the schematic to the letter paying particular attention to inductor placement. The only part I did not replace was the four lead 3mh...