The long-awaited HUMAN 81 DK is now available.
Best viewed in "landscape" mode.
EPI & Epicure Speakers:
The Epicure 1
specifications - crossover schematic - equalizer - order parts
From the original brochure: cabinet oiling instructions
Screw hex head (Allen head) sizes: woofer: 5/32"; midrange: 7/54"; tweeter: 5/64"
Specifications
photo/top - crossover schematic - equalizer - order parts
| Dimensions: | 42 3/4" x 12" (9 1/4 at front) x 13" | |
| Weight: | lbs | |
| Response: | 32 to 20k Hz | |
| RMS Power: | 20 to 200 watts | |
| Crossover | 160, 500, 2500 Hz | |
| Two 8" woofers | PRO 028 | $79.00 each |
| Two 4" midranges | PRO 026 | $56.00 each |
| 1" tweeter | PRO 002 ME 2 | $73.00 each |
| Impedance: | 6 ohms | |
| MSRP: | 1400.00 | |
| Built: | 1988 |
Crossover schematic
photo/top - specifications - equalizer - order partsNote: I could not measure the ferrite-core chokes in situ, and did not want to take apart my customer's crossover, so the values are not provided yet.
Key to Crossover Symbols and Component Values (in a new window)
SPEQ™ (Speaker Placement Equalizer)*
photo/top - specifications - crossover schematic - order parts
| Dimensions: | 2" x 5 7/8" x 8" | |
| Input Impedance: | 50 kΩ | |
| Boundary Control: | ||
| Output Gain: (ref. 1 volt, 0dBv) | π/2 +14 dBv at 35 Hz, -3 dB at 70 Hz | |
| π +8 dBv at 35 Hz, +2 dB at 70 Hz | ||
| 2π +2 dBv at 35 Hz, +37 dB at 70 Hz | ||
| Step Corner Frequency: | 100 Hz | |
| Mid-Bass Control: | ||
| Output Gain: (ref. 1 volt, 0dBv) | +0 to +6 dB at 190 Hz | |
| Bandwidth: | +/- 75 Hz | |
| Subsonic Filter: | 12 dB/octave, -3 dB at 22 Hz (with Boundary Control in π position) | |
| Response: | 200 Hz - 40 kHz, +0 dB, -3 dB | |
| Distortion: (1 v output) | < 0.02 %, 20 to 20k Hz | |
| Signal to Noise: | > 80 dB, ref. 1 v out (unweighted) | |
| Power: | 250 mA at 18 v DC | |
* "The SPEQ provides control of the deep bass and mid-bass sound regions to overcome room/speaker interaction effects. The SPEQ insures maximum performance in any location."
The Boundary Control is set based on how much of the space around the speaker is a reinforcing surface, that is, a wall. π/2 is ninety degrees, and would be chosen if the speaker is in a corner. π is 180 degrees, and is used when the speaker has its back against a wall. 2π is 360 degrees, and is used when the speaker is out in open space several feet away from all boundaries. As far as I can tell.
Here is a close-up of the control knobs:
* * *
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