Technical Details
Brand: Denon
Model:DH-710
Category:Super High Fidelity
Application:Semi-Pro
Electronic:Solid State
Country of Manufacture:Japan
Release dates:1974 - 1978
Tracks:1/2 Rec/Play+1/4PB
Speeds: 7 1/2, 15
Max Reel Size("): 10.5"
Number of heads: 4
Dimension: 17.7 x 21.6 x 10" - 450 x 550 x 255 mm
Head Composition: Permalloy
Head Configuration: Stereo - Stacked
# Motors: 3
Auto Reverse?:No
Voltage(s): 100v Japan
Frequency Response:7.5 ips 30-18,000 Hz, - 15 ips 30-22,000 Hz, ± 2 dB
Wow and Flutter:7 1⁄2 ips ± 0.025 % - 15 ips ± 0.02 %
Signal-to-Noise Ratio:68
Sound quality rating:8 / 10
Long-term reliability rating: 8 / 10
Weight: 61.7 Lbs. - 28 kg
Additional Details
Description
Manufactured by Nippon Columbia, the Denon DH-710 was also offered with two other variations. Denon DH-710 F & Denon DH-710 S
This was a semiprofessional deck that separated the record/playback electronics from the transport, bearing some similarity to the Teac A-7300 variations. The 710 was a complete machine or available with separate record/pb electronics in the F and S configurations.
A full half track recorder with a quarter track playback head, this machine was very versatile. It became the chosen machine for the legendary audio designer, Tim De Paravicini to modify. We don’t know if he simply upgraded the original record and playback amplifiers with higher end components or if it was a complete redesign. The 710F was very common in Japanese radio stations and recording studios. A remarkable achievement for a company that produced relatively few R-R paper corridors
A stranger to the North American market, it appears that the 710’s were only available in Japan and priced at ¥348,000 in 1974.
These seem to be readily available on the used market if you can figure out a way to navigate Yahoo Japan website. At 61 pounds shipping would be expensive needless to say. A step down transformer would get you to the 100 volt power requirement.
Additional Info
Heads (4) 1/2 Track Record, Playback & Erase – 1/4 Track Playback
Motors (3) 1 x AC-Servo Capstan, 2 x 6 Pole AC-Servo
Max. Reel Size 10.5″
Tape Speeds 7 1⁄2 – 15 ips
Wow and Flutter 7 1⁄2 ips ± 0.025 % – 15 ips ± 0.02 % WRMS
Frequency Response 7.5 ips 30 – 18,000 Hz, ± 2 dB – 15 ips 30 – 22,000 Hz, ± 2 dB
Signal to Noise Ratio 68 dB at 15 ips
Total harmonic distortion 1 % at 15 ips
Dimensions 17.7 x 21.6 x 10″ – 450 x 550 x 255 mm
Weight 28 kg