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EPI & Epicure Speakers:
The EPI M1000

(build a pair yourself using HUMAN parts!)

history - specifications - crossover schematic - brochure text - order parts

History

photo/top - specifications - crossover schematic - brochure text - order parts

The handsome young man posing next to the speaker above is Winslow Burhoe, designer of these speakers and founder of Epicure Products Incorporated.

This speaker, which is exactly the same as the Epicure 1000, with the exception of the logos and the appearance of the drivers, deserves some more comment.

It is an incredibly simple solution to the problem of increasing power handling and bass response without losing all the careful design efforts invested in a high quality bookshelf speaker (the EPI 100/Epicure 10).

By using the smaller system's parts on every side of a square column, power handling is boosted by a factor of four - or, at any given power level, each driver is working 1/4 as hard and is vastly less prone to distortion. By carefully selecting the woofers used, the much larger "per-woofer" volume of the box takes advantage of this driver's ability to respond to very low frequencies when used with the right amount of air behind it.

The crossover can still be the minimalist single capacitor used in the smaller "module" speakers, since every bit of the engineering that made this work beautifully is still present.

The power rating given below of 60 to 250 watts is a bit conservative. These speakers sound great when played quietly, only consuming a few watts per channel, and will easily handle 500 watts each. I would say that 650-700 watts rms would be fine.

Given the impressive stature of this system, and the fact that I build woofers and tweeters that are exactly the same (except my parts are better than the originals!), it only makes sense to encourage people to build this system for themselves. The box is fairly simple, and can have whatever cosmetic effect you desire if you build it yourself. The resulting sound is phenomenal.

I should know, I have a pair of EPI 1000's in my living room... and if I ever sell them, I will build some more to replace them.

You can read about and see pictures of me rebuilding my pair.

I make improved replacements for all the parts in this speaker, including drop-in replacement tweeters. I can also rebuild the original units.

Specifications

photo/top - history - crossover schematic - brochure text - order parts

Dimensions: 75" x 18" x 18"
Weight: 180 lbs
Response: 22 to 18k Hz
RMS Power: 60 to 250 watts (very conservative rating)
Crossover: 1800 HzACC 004 G$85.00 each
Four 8" woofersPRO 001$59.00 each
Four 1" air spring dome tweetersPRO 002 ME1$54.00 each
Impedance:8 ohms
MSRP:2,000.00
Built:1973 - 78

Crossover schematic

photo/top - history - specifications - brochure text - order parts

Key to Crossover Symbols and Component Values (in a new window)

Brochure text

photo/top - history - specifications - crossover schematic - order parts

The following is copied from the "Brown Booklet":

The model 1000 represents the ultimate extension of all the design principles and inherent advantages of EPI loudspeakers. Its four full-sided woofer-tweeter modules reproduce all audible tones with a realism unequalled by any other speaker system, and radiates them in all directions equally. With a stereo pair, two acoustic fields are created providing unequalled stereo realism from two invisible sound sources. Ideally located, there is no way to detect by listening where the sound is coming from.

The EPI Tower produces the ultimate in sound quality, but at 6 1/2 feet tall, 180 pounds and one thousand dollars each, the majestic columns are out of reach of all but the most devoted and enthusiastic music lovers. We produce it more for the joy of making the very best loudspeaker we are capable of manufacturing than with any serious intention of selling many of them.

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