tonerei
pfm Member
I’m sorry, I misunderstood you, I thought you said you had two pairs of ESL 63s, one restored by Quad and one by OTA. I am only interested in 63s because that’s what I have, that’s what will have to be restored one evil day. My bad.
No I misunderstood you! I have 2 pairs of 63's you are correct. Will need to get them side by side at home to compare but my Quad done ones are now 10yrs 'old'
Fran repaired his 63's himself and we have compared that set with my OTA pair. No noticeable difference albeit on a short listening comparison. My new pair have all new OTA boards and they advise that they are uprated for what its worth whilst Fran's are home done repairs to the EHT's (Fran can elaborate).
For comparison we ran them without grills and dust covers. They sound a lot more open like this. We didn't compare them with the Quad grills against the OTA grills which are definitely a lot more open.