STUDER REVOX A700 10 inch Open Reel Tape Recorder. Factory Serviced.

Description

STUDER REVOX A700 10 inch Open Reel Tape Recorder
with Built in Pre-Amp & recent Factory Service
This is a Revox A700 that I inherited about 10 years ago from my best friend.  He bought it new, I believe around 1970, and used it as the center of his stereo system with a power amplifier, until he died, occasionally having it serviced at his local dealership where he had bought it, in northern Virginia or Washington DC, and even, I believe, having the heads replaced.  It is a superb instrument and has given both its original owner and its second owner, me, excellent service, and will probably continue to do so for many years for its new owner.
Having inherited it, I used it to replace a Teac A-3340S deck I had previously owned (and later sold), and I have used it occasionally but not for several years, until just recently, and I was thinking it would be good to try selling it and find it a new home.  The ReVox worked fine last time I had used it, except the tape counter wasn't working, but it had probably been 20 years since its most recent service as its original owner was in poor health his last decade.  Since having recent servicing seems to be an excellent selling point when advertising on ebay, I looked up ReVox factory authorized service, and found there was only one in North America, JM Technical Arts in Tennessee.  I contacted the service center, sent the ReVox out, and it came back in less than a month brought up to spec and thoroughly cleaned, with preventive maintenance performed.  I played a tape and it sounded excellent, and the tape counter has been repaired.  And I was reminded that it has a big power on thump and that one's preamplifier input should be muted or switched to something else when the ReVox is powered up.  This was an exceptionally fine piece of equipment when new.  It still is, and it and its brothers and sisters were commonly used for recording many, many fine commercial analog recordings.  With the recent popularity of one-on-one direct copies of original master tapes, this is a superb machine to play them on.  It records and plays back at 15 ips, 7.5 ips, and 3.75 ips, so it will play all commercial stereo or mono tapes and also 15 ips master tape copies.  For a vintage machine, you can't do much better, unless maybe you find a much upgraded professional tube model tape deck, and even that is questionable.  Its opening bid is a small fraction of new machines of comparable quality, and about the same as the price of 6 one-on-one direct copies of original master tapes I have seen advertised at Acoustic Sounds™.  Unlike the ReVox A-77, it has a high quality built in preamplifier and can be hooked directly to a power amplifier as the control center of a quality stereo system.  Its original owner used it with a pair of strapped-for-mono Dynaco Stereo 70 tube amps, and that was an exceptionally synergistic combination.  The preamplifier functions also mean that the A700 can be used as a complete portable recording studio.
This is a 4 track stereo machine, 2 channel stereo in each direction, but it can also be used to play half track stereo tapes, full track mono tapes.  It can also be fitted with half track heads if all you are planning on playing are half track tapes.  In professional recording use of the ReVox, half track heads are pretty standard, but many were sold to consumers with
4 track stereo heads like this one has.
However, I should note that half track heads are available on the ebay and from ReVox and can be fitted to this deck if the new owner wishes to do so.
It comes in the packaging in which it came back from its ReVox servicing.  The 10" take up reel, NAB hubs, paperwork, the original owner's manual (in German, English and French), and original Revox audio cables will be shipped separately but are included.  It came back to me with a 90 day warranty, but that, unfortunately, does not transfer to a new owner.  I am willing to ship it and insure it for full value, BUT if you live in any state adjacent to Maryland, and maybe even beyond, I would recommend that it would be worth your while to take a drive and pick up this fine electronic instrument locally in the Baltimore area.  I occasionally arrange for local pickup of things I sell at the Catonsville Branch of the Baltimore County Public Library.  Based on shipping for servicing, cost for shipping it to you is likely to be in excess of 0 in nearby states; and you will probably treat it with more tenderness and care than UPS or FedEx.   I have listed shipping as 0, only in the USA, but I don't expect it to cost that much and will make a partial shipping refund if it costs significantly less.  If you choose to have it shipped and anything happens in shipping, it will be your responsibility to deal with the shipping company.  If you pick it up locally after purchase, I can demonstrate how well it works and either pack it in its boxes, or let you do it, or work with you to do it.  If you have any further questions, please click on "Contact seller" in the upper right of this page.  Also take a look at the photos, check my feedback, and my other auctions or sales.  As you can see in the pictures it comes with original ReVox NAB hubs for 10" reels but the hubs can easily be removed for use with standard 7" reels.  It is currently hooked into my system for playback only.
Specifications:
Track system:  4-track, 2-channel, stereo system
Heads: 1 x record, 1 x play, 1 x erase
Motor:  2 x reel, 1 x capstan
Reel size:  up to 10.5 inch reel
Equalization:  NAB
Tape speeds:  15, 7.5, 3.75 ips
Wow and flutter:  <0.06% (15 ips),   <0.08% (7.5 ips),  <0.1% (3.75 ips)
Frequency response:  30Hz to 22kHz (15 ips), 30Hz to 20kHz (7.5 ips), 30Hz to 16kHz (3.75 ips)
Signal to Noise Ratio:  65dB (15 ips), 66dB (7.5 ips), 63dB (3.75 ips)
Total harmonic distortion:  <0.6% @15 ips & 7.5 ips, <1% @3.75 ips, all at 0 VU
Crosstalk:  better than 45dB
Inputs:
2 Microphone stereo balance 50...600 ohm, position low 0.15mV/6 kohm, position high 1.8mV/6 kohm
1 Phono stereo magnetic equalization RIAA 2.5 mV/50 kohms
1 Radio stereo 3 mV/33 kohm
2 Aux stereo 40 mV/100 kohm
40mV (line), 3mV (DIN), 0.15mV (mic)
Outputs:
Lines A & B 1.55V, Radio 0.775V (DIN), 2 headphone, 1 power amplifier
Semiconductors: 16 x IC, 2 x LSI, 96 x transistors, 99 x diodes, 7 x rectifiers
Tone Controls:
Bass  + or - 8 dB at 80 hz in 2 dB steps
Treble  + or - 8 dB at 8 khz in 2 dB steps
Voltage selector for 110 to 250 Volts, 50 or 60Hz