Nakamichi SR-4 E specifications

Category : Receiver

General

Connections

Technical data

Amplifiers

Tuners

Special features

In terms of sound, these parts tend to have a natural, rather deep and wide, rather than high stage.

Details are wonderfully resolved with the emphasis on the subtleties and structures, analytical in the best sense.

2x Video/Aux (200 mV, 20 k643961b8da111c0a15d770a1109a86d4)
1x VCR/Tape2 (200 mV 20 k643961b8da111c0a15d770a1109a86d4)
1x Tape (200 mV 20 k643961b8da111c0a15d770a1109a86d4)
1x CD (200 mV 20 k643961b8da111c0a15d770a1109a86d4)
Phono (MM 140 mV; 47k643961b8da111c0a15d770a1109a86d4 / MC 3/8 mV; 100 643961b8da111c0a15d770a1109a86d4 )
FM antenna (75/300 643961b8da111c0a15d770a1109a86d4)
ON-antenna

sine wave continuous power
- 8 643961b8da111c0a15d770a1109a86d4: 2x 60 W (DIN),
pulse power
- 8 643961b8da111c0a15d770a1109a86d4: 2x 85W
- 4 643961b8da111c0a15d770a1109a86d4: 2x 125W
total harmonic distortion: 0.1% (at nominal power)
damping factor: 77 (8 643961b8da111c0a15d770a1109a86d4)
frequency response: 20 - 20,000 Hz (+0; -1 dB, model)
frequency response: 20 - 20,000 Hz (+0; -0.5 dB, otherwise
frequency response: 5 - 45,000 Hz (+0; -3 dB, model)
frequency response: 5 - 75.000 Hz (+0; -3 dB, bask)
signal-to-noise ratio:
- Phono: better 78 dB MM; 71 dB MC
- amplifier: it is better to 105 dB
control:
- Bass: Yes
- sound in the Middle: no
- height: Yes
Loudness: variable Loudness
Subsonic: Yes
Mute: Yes
Direct/Line-Straight:

receiving: FM, MW
frequency:
- FM: 87,4 - 108 MHz
- MW: 515 - 1,611 kHz
frequency response: 20 - 15,000 Hz
input sensitivity:
- FM Mono: 23 dBf / 7.7 müV
- FM Stereo: 43 dBf / 77.4 müV
- MW: 53 dB mu/m
total harmonic distortion FM: less than 0.2%
total harmonic distortion MW: less than 0.3%
signal-to-noise ratio: 74 dB (Mono), 69 dB (Stereo)
s / n ratio:
channel separation: better to 43 dB (1kHz)
selectivity FM: 70 dB (+/-300kHz)
selectivity MW : 20 dB (+/-9kHz)
frequency selection: 2.0 dB
in addition to wave suppression: better than 90 dB
mirror frequency attenuation: better than 75 dB
if rejection: better than 80 dB
ON-suppression: better 60 dB
output level:
RDS: no
station memory: 10

Rainer Kruse in hifi-classic-reparatur.de (2. April 2014), see also the Link below:
"The Threshold developed Stasis circuit, the guarantor for the load stable power supply in the niedrigohmigen power range, Puttering in the well-known power amplifiers, and in the shallow receivers!

The SR-2,3 and 4 receivers, the SR-4 even remotely controllable, had a good sounding phonosection (the 2er unfortunately only MM) and of course an excellent tuner built in.

An SR-4 sounds much more natural than, for example, an Accuphase E-206, which plays louder and bigger, but much more unmusical.

The parts still look chic and are easy to adjust, just no debris.
If you get your hands on a semi-neat device today, after more than 20 years, they run flawlessly. A manufacturing quality that the Europeans and Americans were running after!"