| Title | Value |
|---|---|
| MAIN section | MAIN section |
| Type : | Solid state OCL DC with 39 transistors and 14 diodes |
| Dynamic power output : | 2x 110W (4 Ohm ; IHF) |
| 2x 85W (8 Ohm ; IHF) | |
| Continuous power output | 2x 80W (4 Ohm ; RMS, one channel driven) |
| 2x 60W (8 Ohm ; RMS, one channel driven) | |
| 2x 60W (4 Ohm ; RMS, both channels driven) | |
| 2x 50W (8 Ohm ; RMS, both channels driven) | |
| Power bandwidth : | 10Hz...23Khz (8 Ohm ; 0,25% THD ; one channel driven ; 50W output) |
| 20Hz...20Khz (8 Ohm ; 0,25% THD ; both channels driven ; 50W output) | |
| THD : | 0,05% rated power (1Khz) |
| TIM : | 0,4% (rated power) |
| Frequency response : | 3Hz...450Khz (-3dB ; 1W output) |
| Damping factor : | 50 (8 Ohm) |
| Load impedance : | 4...16 Ohm |
| Input : | 1V for rated output |
| PRE section | PRE section |
| Frequency response : | 20Hz...50Khz (± 0,5dB) |
| SEA controls : | 40Hz / 150Hz / 400Hz / 1Khz / 2,4Khz / 6Khz / 15Khz |
| SEA control range : | ± 12dB |
| Inputs : | 2,5mV / 47kOhm (phono 1 & 2) |
| 200mV / 100kOhm (aux 1, 2 & 3) | |
| 200mV (tape 1 & 2 play) | |
| Outputs : | 180mV / ?? (tape rec RCA) |
| 30mV / ?? (tape rec DIN) | |
| ?? / ?? (PRE out) | |
| S/N ratio : | 56dB (phono) [JA-S9 : 91dB IHF / 63dB RMS] |
| 86dB (lines) [JA-S9 : 101dB IHF / 86dB RMS] | |
| EQ section : | RIAA ± 0,5dB |
| Phono overload : | 700mV (p-p at 1Khz) [JA-S9 : 840mV] |
| 250mV (RMS) [JA-S9 : 300mV] | |
| Phono load trims : | 33 / 47 / 100kOhm |
| Pink noise generator : | 0° or 180° |
| Subsonic filter : | 12dB/octave below 18Hz |
| High filter : | 12dB/octave above 9Khz |
| Loudness : | + 11dB at 50Hz |
| + 1,5dB at 1Khz | |
| + 4dB at 10Khz | |
| Muting : | -20dB |
| General | General |
| PC : | 230W (VN-900) |
| 135W (JA-S9) | |
| Dimensions : | 42 x 13,8 x 33,3cm |
| Weight : | 11,5kg. |
| Listprice : | 89,800¥ (1973) |
| Accessories : | WD-1 wood enclosure |
JVC VN-900
JVC JA-S9
1975
1976
Not necessarily interesting or worth actively scouting for - but for one thing : this forgotten audio amplifier is still playing today, more than thirty-three years after its initial launch.
Unbelievable, isn't it ?
Most of yesterday's audio gear, high-end, low-end, mid-fi, low-fi, ultra-fi, if more or less well cared for, is still doing what it was meant to do and we can still play the x-rare LPs that never were nor will be reissued : put the vinyl on the twangy Thorens TD-125, thump up the VN-900, pump up the volume - memories, bliss, surprise : tongue, no tongue, your choice.
Now, transpose that situation into the blazing world of 2045.
First find a new battery for the old mp3 player your gran'pa gave you on your 12th birthday. Ok - no battery, but suppose you manage to power it up.
What the hell is the compression format the darn thing restricted music with ??
Nothing can play that anymore. And that plug (USB ?) - what is it ??
Unless you find an old Hell running the Window$ thing (was that the name ? it used to be huge company). Or maybe an old G5, the one with the Apple on it.
But where to find the proper OS that has the built-in codec ? And that's supposing you could have those machines running again...
Ah ! Bollocks !
Throw the mp3 player away.
No memories.
No tongue.
No choice.
page online since : april 2008
page updated : august 2010
page type : LGT / KNB
page weight : 163.75 Kb / 0 b
page updated : august 2010
page type : LGT / KNB
page weight : 163.75 Kb / 0 b
- TVK Talk Forum
- TVK Museum
- Specials
- Timelines
- Utilities
- Games