mksj2

Responses from mksj2

Quad ESL Cap mods
Let me know how you want the information to be sent or posted, I have provided other forum members with more detailed information. I am not aware that the information can be uploaded to this forum. Newer Quad models after the 988/989 present more ... 
Quad ESL Cap mods
Hi Tsushima1, if you need some photos of the quad 988/989 mods/info, I can email photos of the mods I installed. I would leave the stock electrolytic cap/resistor in place and clip out the PTC that connects them on the PC board to the wire going t... 
Quad ESL Cap mods
Hi Sugarspice, the RC does not limit the frequency range to the speaker, a characteristic of a dipole loudspeaker is that below the cancellation frequency, determined by the size of the speaker, the output will decrease with 6dB/octave. The series... 
Quad ESL Cap mods
Hi, Johnsonwu. My Quad ESL 988 speakers measure around 2.8 ohms across the speaker terminals. The Quad ESL 988, 989 and the Quad ESL 2805, 2905 use the same circuit. If your resistance measures 0 and then goes to infinity, it probably is just seei... 
Quad ESL Cap mods
Agree with you, replacement of the Quad ESL speaker 220uF electrolytic capacitor probably accounts for the majority of the improvement. Probably replacing the electrolytic cap/resistor and eliminating the PTC gives the most bang for the buck and t... 
Quad ESL Cap mods
Note: Working on Quad speakers is inherently very dangerous due to their high voltages, although you can do these mods at your own risk (and could result in death), I recommend that you send your speakers to someone that has experience in working ... 
Quad ESL Cap mods
Hi, I have the Quad 988 speakers and I am also considering changing out the input capacitor and resistor. I find the upper extension to be somewhat lacking in comparison to my Magnepans, which was a real surprise. I am using Cary 805 Anniversary A...