FOSTEX EN1000
¥ 59,000 (around 1992)
Commentary
Channel divider specially designed for sub-woofers.
You can assign a very low frequency signal to the power amplifier that drives the subwoofer, and output a cut signal to the amplifier that is the main speaker.
You can use either the 3D or stereo method.
The cut-off frequency of the low-pass filter is set to a low frequency so that the crossover frequency increases when the ultra-low frequency is boosted, so that the sound quality between the subwoofer and the main speaker is not degraded due to the low pitch sound.
Model Rating
Type | Channel divider dedicated to the subwoofer |
Rated output | Low output:1V Pre output:100mV |
Maximum power output | Low output : 5 V (distortion factor 0.05% or less) |
Total harmonic distortion factor | 0.005% or Less (Rated Output) |
Input impedance | 47k Ω |
Input sensitivity | 100 mV (Rated Output) |
Output terminal | Pre output : R/L (stereo) Low output : R + L (3D), R/L (stereo) |
Output impedance | 470 Ω |
Low-pass filter | 25 Hz, 35 Hz, 45 Hz (switching) 18dB/oct |
High-pass filter | 100 Hz, 18dB/oct. (fixed) |
Subsonic filter | 25 Hz, 18dB/oct (on/off possible) |
Crossover point | 60 hz, 70 hz, 80 hz (when the low-pass side rises by 10 dB) |
Signal-to-noise ratio | 100 dB or more (IHF) |
Pwer | AC100V |
Power consumption | 4W |
External dimensions | Width 482x Height 44x Depth 169 mm |
Weight | 2.6kg |