The long-awaited HUMAN 81 DK is now available.
Best viewed in "landscape" mode.
Model 81+
and the Hollywood glamour shots)
(build a pair yourself using HUMAN parts!)
I am replacing it with the 81 DK model.
The HUMAN 81+ is the best possible two-way speaker I can build using my hand-made woofers and tweeters.
(A "budget" version, the model 81, is available in a smaller, vinyl-clad enclosure, using the same basic design and parts.)
- High power handling will accomodate most amplifiers. The "power rating" is 175 watts, but who plays pink noise at full volume for hours on end? A 200w/channel into 8 ohms/400w into 4 ohms system will really shine with these hooked up to it.
- Its efficiency will make the most of smaller amplifiers - at 89 dB for 1 watt at 1 meter, a 30 to 50 watt/channel system will be quite impressive in small to average rooms.
- Wide frequency response enables faithful reproduction of any type of music (or video soundtrack). The system is +/- 2 dB from 37 Hz to 26 kHz, with a gentle roll off below and above those extremes.
- Uniform power response reproduces all frequencies equally in all directions. The off-axis response is remarkably similar to the on-axis reproduction, with a gentle drop in the very highest frequencies at 90 degrees off-axis. This wide, linear dispersion ensures that reflected sounds have the same character as the direct sound, leading to a truly believeable listening experience.
- The minimalist crossover design eliminates phase effects. Since all that is needed is a high quality capacitor to protect the tweeter from low frequency energy, the result is incredibly transparent.
- Ultra low distortion so that even the most complex passages remain clear. Low distortion, which translates to linearity, is the key to subtlety and listenability - from a whisper to a scream, or both at the same time.
My speaker parts are rugged and purist. They are designed to complement each other's range and clarity. The woofer, in this cabinet, is flat from 37 Hz (-6 dB at 26 Hz, -12 dB at 18 Hz) to 1800 Hz, where the tweeter takes over (most tweeters couldn't handle a crossover this low) and finishes the job out to 26 kHz, beyond human hearing. A minimalist crossover design prevents stored energy from smearing the musical detail and provides excellent transient response.
This speaker is built to "high end" standards, with high quality binding posts, an audiophile grade crossover capacitor, 16 gauge internal wiring, and extensive internal bracing and damping.
The cabinet volume, while a bit demanding of living space, results in an incredibly extended flat bass response - getting the most possible out of the specially designed woofer.
Bi-wiring/bi-amplification terminals are standard, but you don't have to use them. The base is provided with 1/4-20 threaded sockets for the feet of your choice; flat glides and basic spikes are included, along with a nifty custom stamped-steel 7/16" wrench to tighten the locking nuts on the spikes. A dedicated bolt-on stand which can be loaded with twenty pounds of sand is available separately.
It is available in black lacquered oak with a silvery grey grill (Images are linked to larger versions)
(Images are linked to larger versions - scroll up for various "work in progress" photos)
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7 Kelsey Road, Lee, New Hampshire 03861
Prices can change and specifications will improve without notice
or natural oak with a black grill (the natural oak finish is temporarily out of stock). The stands are either natural oak or tastefully presented black-painted MDF.
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