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I have several NOS pairs of each, to me, the RCA are noticeably better in transparency, dynamics and timbre.
iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.
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Topic - Comparing the RCA 6550 to the GE6550 and . . - John PA 10:48:29 01/30/23 (7)
- RE: Comparing the RCA 6550 to the GE6550 and . . - Mendel 11:05:20 01/30/23 (6)
- But I thought the relabeled RCA from TungSol were the larger . - John PA 11:49:42 01/30/23 (5)
- RE: But I thought the relabeled RCA from TungSol were the larger . - Mendel 12:05:06 01/30/23 (4)
- I looked at some Sylvania 6550s and that is what they look . . - John PA 12:20:38 01/30/23 (1)
- RE: I looked at some Sylvania 6550s and that is what they look . . - Mendel 12:24:39 01/30/23 (0)
- I hadn't thought about Sylvania. . - John PA 12:17:20 01/30/23 (1)
- RE: I hadn't thought about Sylvania. . - soundchaserkt66 20:39:34 02/08/23 (0)