Wow and flutter (DIN 45507): | ±0.04% (15 ips)
±0.06% (7-1/2 ips)
±0.12% (3-3/4 ips) |
[Amplifier] | Overall frequency: 30Hz to 20kHz, ±0.5dB (200Ω microphone, unloaded line output)
Total harmonic distortion: 0.15% (At 0dB level, input 10mV, output loaded 600Ω)
Minimum input voltage: 35mV (1% distortion at 1kHz)
Noise level with ASA “A” filter: -126 dBm |
[Modulometer] | Integration time for -1dB: 4ms
Usable scale: -30dB to +5dB
Frequency response:
40Hz to 10kHz, ±0.25dB
20Hz to 20kHz, ±1dB |
[Erase Characteristic] | Residue of 800Hz signal recorded at maximum level and erased: -80dB |
[Record / Playback Characteristic] | Frequency response (Recorded at -20dB):
30Hz to 20kHz, ±2dB (15 ips)
30Hz to 15kHz, ±2dB (7-1/2 ips)
30Hz to 7kHz, ±2dB (3-3/4 ips)
Noise level: -79dB
S / N ratio: 70dB (Scotch tape № 102, 7-1/2 ips referred to maximum level)
Inputs impedance / sensitivity:
200Ω / 0.2 to 30mV (MIC)
100kΩ / 0.037 to 120V (Asymmetric line input)
9kΩ / 560mV (Mixer input) |
[Automatic Level Control] | Input level for recording at nominal level: 0.6 to 20mV
Average distortion in this range: 0.25%
Frequency response: 55Hz to 16kHz |
[Speech Filter and Reference Generator] | Number of speech filter positions: 4
Reference generator frequency: 400Hz
Reference generator level: -8dB = 0 VU |
Output level / impedance: | 4.4V / 600Ω (Line amplifier for signal level of 0dB) |
Output level at different frequencies to give 1% distortion into 600Ω load: | 9.6V (1kHz)
9.6V (5kHz)
9.2V (30Hz) |
Maximum output level at headphone jack, no load: | 880mV |
Output level at headphone jack, with 50Ω load: | 20 to 800mV (Variable) |
Mixer output level for Odb signal: | 560mV (100kΩ load) |
[Incorporated Loudspeaker] | Power output: 1.6W
Frequency response: 200Hz to 15kHz, ±6dB |
[Power supply] | Required voltage supply, positive to chassis: DC 10.5 to 30V
Battery type-ASA Standard (12 cells): D or L 90
Battery life for Eveready (U.S.) type 950-duty cycle 2 hr / 24 hr: 18 hr
As above but continuous duty: 8.5 hr |
