PIONEER
Series20
D-23
crossover
2-way, 3-way or 4-way crossover functions.
All-discrete, pure-complimentary, Class-A, SEPP buffer-amplifiers with differential power supply for purest sound.
High Input-Impedance and Low Output-Impedance prevent input-source and output-load from influencing the filters in any way.
Dual High-Voltage Power-Supply of ±30V regulated at ±22V, providing wide dynamic range and excellent channel separation.
Frequency selection every one-third octave.
Independent Slope and Frequency, each section.
Level control in 1-dB steps, each channel, each section.
Selectable cutoff Slopes of 6, 12 or 18 dB/oct.
6dB/oct & 18dB/oct are -3dB at Fc.
12dB/oct is -6db at Fc.
Precision switches and controls -
quality you can feel as well as hear.
| Type | Electronic Crossover, 2/3/4-way | ||||
| Circuitry |
| ||||
| Cutoff Frequency | Low (High Cut), Mid-Low (Low Cut): 63, 80, 100, 125, 160, 200, 250, 320, 400 and 500, 630 Hz. Mid- Low (High Cut), Mid-High (Low Cut): 320, 400, 500, 630 and 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.5k Hz. Mid-High (High Cut), High (Low Cut): 1.6k, 2k, 2.5k, 3.2k, 4k, 5k, 6k, 8k, 10k, 12.5k, 16k Hz. | ||||
| Slope | 6db/oct, 12db/oct, 18db/oct (independent, each section) | ||||
| Level control | 0 ~ -30db in 1-db steps (independent, each channel) | ||||
| Insertion Loss | < 2db | ||||
| Input Impedance | 100k Ohms | ||||
| Output Impedance | 4k Ohms max | ||||
| Output into 50k Ohms | 1V nominal, 10V max | ||||
| THD (20~20k Hz) | 0.005% at 1V output 0.1% at 10V output | ||||
| Frequency Response | 10~100k Hz, +0/-1db | ||||
| SN ratio at 1V output | -100db (IHF-A) | ||||
| Semiconductors | 71 transistors, 18 diodes/etc. Zero IC's! | ||||
| Power Consumption | 11 Watts | ||||
| Dimentions | 20" Wide, 6" High, 14" Deep | ||||
| Weight | 20 lbs |
AllegroSound (Est.1973)
Los Angeles, California USA
Rick@AllegroSound.com
FOR SALE - TRADE 
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