The long-awaited HUMAN 81 DK is now available.
Best viewed in "landscape" mode.
Model V and V-II
I have yet to see one of these in person. They are quite similar to the Genesis I, using a woofer that is basically identical to the Genesis, along with a European soft-dome tweeter, for which I make a drop-in version of my (much better) concave dome tweeter.
specifications - crossover schematic - order parts
(The V. See below for a brochure scan and an owner's photo)
photo/top - specifications - crossover schematic - order parts
| Height | 20" | ||
| Width | 11½" | ||
| Depth | 9½" | ||
| Shipping weight | |||
| Finish | Walnut vinyl | ||
| Tweeter | 1" soft dome | PRO 002 MP | $73.00 each |
| Woofer | 8" long throw | PRO 001 | $79.00 each |
| Crossover freq. | 2000 Hz | ACC 004 A | $35.00 each |
| Sensitivity | 90 dB 1w/1m | ||
| Frequency response | 45 Hz to 20 kHz | ||
| Power handling | 80 watts/ch | ||
| Minimum power | 15 watts/ch | ||
| Impedance | 8 ohms nominal 6 ohms minimum |
photo/top - specifications - crossover schematic - order parts
Key to Crossover Symbols and Component Values (in a new window)
Yes, this is a strange crossover in one respect - that ten ohm resistor in parallel with the tweeter makes no obvious sense. Yes, I have seen it, and that is really where it is. My suspicion is that its job is to "clamp" the voltage seen by the tweeter down around its resonance so it only splits the voltage with the capacitor, rather than getting the lion's share. This may be a way they tried to deal with the tweeter they chose not really being happy having to play down to ~1800 Hz where the woofer they copied from Genesis is rolling off on its own. Of course, just up the road, Genesis was making a version, a generation, of the tweeter designed to go with this tweeter - but it was a lot more effort, labor, and trouble to do that properly than to just buy these tweeters that Peerless was selling what seemed like everyone for a while. So that's my theory - it acts to roll the tweeter off where it has to be, despite its resonance making that hard to do with the network that will otherwise do it.
I'm not sure why we see nothing like this in their other models. Perhaps it was due to different versions or even generations of the Peerless tweeter. I am told the ones in the speakers this scematic is taken from had no Ferrofluid, for example.
(Brochure scan, click for full-size)
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