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I had a good experience with Greg so you should be in good hands.

Tom, my refurb was done in 2020. I don't recall hearing a major improvement, he had the amp for about 3 months so it was a bit difficult for me to compare before and after given such a long time away. The major reason you want to refurb old Sunfire amps is to avoid a major failure. I had a 300x2...

There are schematics on "the Carver site" (thecarversite.com) for some of the boards used in the Sunfire amplifiers; however, the info is spotty and not easy to follow. Still, it is better than nothing. I have never found any other source of Sunfire schematics on the web. Sorry, I don't know of...

See Figure 2 in the attached manual for the SW-800C crossover to determine how to set your dip switches. There are at least 2 versions of this crossover and I have 2 manuals that correspond to the versions I have owned.

I can say my original panels were in dire need of replacement. The vertical strips that ML glued to the CLS diaphragm surface had come loose and were making audible rubbing sounds as they made contact with the metal stators when playing back music with any sort of LF content. Also the sound was...

I commend you for your generosity, your relative will get a wonderful pair of speakers. And new panels should be a big improvement. Regards, Keith

First I’d say it is not easy to compare the sound of my CLS with new panels and the CLS 2z I had in the 1990s because I had them in different rooms in different houses. But one thing does stand out in my mind. My CLS 2z had a much greater tendency to make rubbing and buzzing sounds when pushed...

Regrettably, I have not posted here in many years although I continue to follow these Forums in a lurking mode. Here is an update of my system. Name: Keith Location: Virginia, USA ML Model(s): CLS (original) Year Purchased: 2007 Mods/Changes: Power supply mod to lower the high voltage of...

Great news, thanks Justin and ML! My (old) CLS 1 thank you too!

I managed to blow a step-up transformer in one of my CLS 1 electronics modules a few years ago so it can happen. Thankfully, Jim Power was there to guide me in replacing the blown transformer with one provided by ML service. While I think most of the other parts in the CLS 1 electronics...

From Jim Power regarding my CLS 1 speakers back in October 2007: "These are indeed the original CLS and original version of the CLS panels. It may be that there is more bias voltage than the panels really like. The early original CLSs tended to be a bit high on the bias voltage sometimes (6KVDC...

I echo all these sentiments and hope that Jim enjoys his retirement. He was a tremendous asset to ML owners and helped me numerous times, always with a smile! All the best!

I seem to recall back in the day one of the combos that seemed to be synergistic was the Quad ESL-63 driven by Spectral electronics, i.e., the DMA-50 amplifier and DMC-10 Delta preamp. So Spectral and transparent ESL speakers can go together quite nicely. Now I would not argue if you claimed...

After 40 years of being an audiophile, tinnitus is a fear and occasionally a reality for me. Maybe it was those sessions back in the 1970s listening to "Live at the Fillmore" played back at stupendous levels over double Advents fed by a Crown DC-300.....who knows? Mine seems to come and go and...

I have a pair of CLS 1 and a pair of VMPS New Original subs. I have Marchand, Bryston, and Kinergetics electronic crossovers. In my room, the CLS bass does not measure or sound flat, exhibiting a peak around 50 Hz and a broad dip in response above that frequency in the 60-200 Hz region. In...

In my experience, absolutely yes!!! :bowdown:

Neil-- those pictured indeed are the "original" CLS 1 panels. However, none of these panels survived more than a year or 2 in the field after the CLS was introduced in the 1980s. Read the Gayle Sanders interview on the ML site for background on why this is so. In short-- these panels had to...

I don't believe there are boxes available for these but you should call Jim Power at Martin Logan to verify. I paid $1500 for a pair of CLS 1 with 2 functional panels plus a spare panel. The panels were early 1990s vintage and so I the eventually replaced them with new ones. Electronics can...

You are probably correct about the electronics being CLS 1 vintage. From my experience, you have CLS 1 panels because there is a visible space between the endpoints of the horizontal spars and vertical spars whereas on CLS 2 series panels, there is little or no space there. The proof however...

The CLS 1 has a signal sensing circuit but it is not used to switch off the high voltage. Instead, when no signal is present, a resistor in the high voltage supply is switched into the circuit that lowers the HV by 50%-- This from Jim Power: "Indeed. Actually all of the original CLSs has a...