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Hi there,I'm looking for a nice used Nak cassette deck, and am considering a Nak 600. Is it worth holding out for a 600II? What are the differences?
tia,
Follow Ups:
This is some advice from someone who has re-built over 2 dozen Nak 600s. First, my personal preference is the 600II, I have both, better head, response to 20khz vs. 18khz on the 600, improved transport parts, 2 test tones; 400hz and 10khz vs. only 400hz, headphone jack (none on the 600) and user controls all outside. To correct the other follow-up post, the only op-amp used in a 600II is for the tone generator, the rest of the circuitry is all discreet. The IM distortion circuit is in the 600II only it is non-adjustable. Other than a few differences, these machines are almost identical, except, they sound very different, I credit that to the head and the somewhat better transport parts. Now for the BAD NEWS. 1) The FF/REW arm almost always binds and will not take up or rewind tape, it has to be removed, cleaned and lubed, if it doesn't do it now it's either been fixed or it will do it. 2) The R/P switch must be thoroughly cleaned. 3) These machines have edge connectors and the PC board edge and receiving connector must be cleaned and make sure the fit is tight. 4) The usual cleaning of controls and rubber. Do all this and you will have one sweet sounding deck that will last a long time. Sorry for being so verbose but I think you need to know all the stuff you will encounter with an over 30 yr old deck. Good luck and remember ""600s RULE!!"
Am interested in a cleaned Nak deck. If you have any available please contact me.
Sorry, The only ones I have are my everday drivers. I will keep this post for future reference and let you know. Thanks for the interest.
I've seen a friend work on a 600 and the insides are amazing. All discreet circuits including the Dolby. Lots or tight tolerence polypropelene caps. The r/p head is 1.5 microns and goes easily to 20k. +7vu on peaks on type one tapes like XL-1s or TDX AD-X. better transcient response and imaging than my Nak 700 which I replaced with a 600 after a-b comparisons. The 600II went to op amps and a 0.9 micron head like the later 580, and also dropped the IM surpression circuit plus added knobs to replace the screwdriver pots on the 600. I would have liked to a-b the 600's. The 600 I owned had a more pleasing natural sound than the following 581 and 670ZX unless I used Scotch metafine (IV tape). Problems though,they don't make heads for these anymore..."surprisingly" and these are really old now....but I think a landmark among all audio equipment. Hope this helps...
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