Technics SH-9020M
¥ 50,000 (around 1977)
Commentary
A peak / average meter unit developed for the purpose of reading as accurately as possible even at the recording level.
3 mode switching of peak / peak hold / average is possible, and 1 meter can be used for 3 different types according to the purpose.
The meter sensitivity can be switched between 0 dBm and 20 dBm.
An indication range from -50dB to + 10 dB is possible for each, and an indication range of 80 dB is secured by using a sensitivity change-over switch.
The input of the Route 3 can be switched with the push button.
You can read the power amp output, recording output, and preamplifier output by simply switching the buttons.
Model Rating
| Type | Peak / average meter unit |
| Input Sensitivity / Impedance (Sens. 0 dBm, + 20 dBm) |
Inputs 1 and 2 : 20 dBm (7.75 v) / 47k Ω, 0 dBm (0.775 v) / 47k Ω input3 : 100W (8 Ω, 4 Ω) / 10k Ω, 1W (8 Ω, 4 Ω) / 10k Ω |
| Sensitivity | 0 dB, + 20 dB |
| Frequency characteristic | 10 Hz to 20 kHz ± 1.5 dB (+ 10 to -40dB) 10 Hz to 10 kHz ± 3 dB (less than -40dB) |
| Attack time (Rise Time) |
330msec(average) 100 μ sec (peak, peak hold) |
| Recovery time (Return Time) |
Average : 250 msec (0 → -20dB) Peak : 750 msec (0 → -20dB) Peak hold : 25 min or more (0 → -3db) |
| Meter range | + 10 to -50dB |
| Indication accuracy | input1, 2 : 0 ± 1.5 dB (input + 20 dBm, Sens. 0 dB) (input 0 dBm, Sens. + 20 dB) input3 : 0 ± 2 dB (input 100W, Sens. 0 dB) (input 1W, Sens + 20 dB) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 10W |
| External dimensions | Width 450x Height 92x Depth 378 mm |
| Weight | 5.3kg |