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RE: Need a better description of the speakers....

72.132.205.170

421a

In Reply to: RE: Need a better description of the speakers.... posted by Joe Backer on May 04, 2022 at 21:15:54

If the screen is pulling, leave it.(the Nakamichi badge) It's metal and not replaceable.(the screen). Yours look really nice. Is the connector on the side? Back to your original post; I used a Fisher 400B successfully, sounded very nice, they can be had for a reasonable price; 300B's are good too. Ah yes, Sean Casper, seems like a talented builder. One of the few times Don spoke "sarcastically" about another builder,(at least for the record, see Art Dudley's column in Stereophile with Don). Sean had an AD1 based amp that looked interesting, but his 421a clone is just plain ugly. At some point you may want to take the back off and check the (1) Cap/autoformer crossover, they are 45 years old. Also, in my system, the thinner the speaker wire the better. Have fun, they are great speakers.

Follow Ups:

RE: Need a better description of the speakers.... - Joe Backer 17:08:41 05/05/22 (2)
I have the connectors on the side but the speakers have been rewired and a monster cable 10 ft wire was attached to each and comes out a hole in the rear.. I'm going to terminate those and install banana jacks and use my very thin existing speaker cables (audience ohno)

The speakers are in great shape except there's some discoloration under the grilles. Doesn't look like there's a way to remove them so I'm not going to be OCD about it.... but I'd love to find someone who has done a restoration because yours look so uniform and lovely!
- RE: Need a better description of the speakers.... - 421a 19:32:13 05/08/22 (0)
  This is what's on the back of those Nakamichi plates. If I remember correctly I might have warmed them up ever so slightly. Also my data plate and Canon plugs. I hooked my speaker cable directly to the speaker inside. (it had the cheap old school spring loaded terminals, I replaced them, can't remember with what.)
  The finish on mine is pretty decent, probably helped along the original fitted linen slip covers, which I no longer have. I also have an original set of frequency and resistance plots performed by the Factory. (Can't locate them at the moment).
- RE: Need a better description of the speakers.... - 421a 17:39:04 05/05/22 (0)
  I don't think you can do much under the grills. Yours look good, might try some furniture oil first. I don't think they are making any more of this Mahogany anymore. I'd hang onto the data plates also, I presume you have the ones that are Kana Script. If you google Triode Labs, I'm sure there are some reviews out there.

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