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The EP-1 Loudspeaker has the uncanny ability to recreate the magic of a live performance in the intimacy of your own home. The listening room is transformed as the speakers disappear and musicians come to life right in front of you.
A unique interpretation of the D'Appolito Configuration, the EP-1 is a virtual full-range unit that plays effortlessly with minimal amplification. Based on theoretical work first proposed by Harry F. Olsen and Dr. Joseph D'Appolito and refined by Dr. Arthur Loesch, the EP-1 utilizes a first order series crossover made up of only a single inductor and a single capacitor. Series crossover topography means there are no parts directly in the signal path -- the crossover is shunted across the driver terminals, rather than in front of them. As a result, sound staging, dynamics, and transparency are unrivaled. |
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To further simplify setup, the series design also eliminates the need for bi-wiring and multi-amplification. Because the crossover network presents the amplifier with a constant voltage source, EP-1 Loudspeakers can be driven to high SPL levels with less than 10 watts of power, making them an excellent match for the Model 302 Power Amplifier.
All critical internal and external dimensions follow the mathematical principals of the Golden Ratio and the Fibonacci Sequence. By its nature, this neutralizes internal standing waves and minimizes external diffractions.
Finally, the drivers are physically time-aligned in the vertical axis, rather than flush-mounted on a tilt-back panel. This means that time-alignment is constant over the entire plane of the cones' surface and not limited to a single point in space.
Note the extremely flat response.
Features Include:
- Custom matched and modified drivers for increased linearity
- 1" (25.5mm) thick High-Density MDF cabinets, harmonically damped with unique anti-resonance materials
- 2" (51mm) thick High-Density MDF woofer baffles
 Teflon® insulated 99.999% pure silver internal wiring
- WBT 0730.01 Topline Binding Posts
- Acoustically isolated crossovers
- Integrated base
- Free analysis of your listening room for optimum placement.
Uncertain about how the EP-1 will work in your room? Let us know the dimensions of your space (height, width, depth) to the nearest 1/4 inch and we'll analyze it in advance. Because every loudspeaker is unique, this data is only valid for the EP-1.
 
Options Include:
- Your choice of three decorator colors:
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Burgundy |
Piano
Black |
Straw |
- Soundcare® SuperSpikesTM for use on low-pile carpeting and hardwood floors where leveling is necessary due to an uneven surface.
- Adona Cones for use on deep-pile carpeting.
Specifications:
| Frequency Response | 45Hz - 30kHz +/- 1dB |
| Efficiency | 91dB/1m |
Power Requirements
(Per Channel) | 7 Watts Minimum
150 Watts Maximum |
| Tweeter | 1" (28mm) soft dome, ferro fluid cooled |
| Woofers | 2 x 6½" (165mm) midwoofers featuring magnesium baskets, front-coated paper cones, non-resonant suspension coupled (NRSC) cone geometry, and non-resonant (NR) rubber surrounds |
| Crossover | Series Type @ 2.5kHz |
| Nominal Impedance | 4 Ohms |
| Cabinet | High Density MDF
50" High x 13.5" Wide x 10" Deep
(1275mm High x 344mm Wide x 255mm Deep) |
| Base | High Density MDF
2" High x 15.5" Wide x 12" Deep
(51mm High x 395mm Wide x 306mm Deep) |
| Net Weight | 100 lbs. (45.5 kg) each |
Price List:
EP-1 Loudspeaker finished in Piano Black, Burgundy, or Straw enamel.
Custom colors are also available upon request. | $7,000 / Pair |
| Soundcare® SuperSpikesTM for use on low-pile carpets and hardwood floors. Recommended mainly for floors that are uneven. | $120 / 8 SuperSpikesTM. |
| Adona Cones for use on deep-pile carpets. | $65 / 8 Spikes + 8 Adapters |
| Availability | Call or Email for availability. Built to order only. There is a lead time of 3-4 months, with a 50% deposit required at the time of your purchase. |
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Feet and spikes may be purchased at a later time. Shipping is additional on all items.
Click on the image above for a preview of the EP-1 cabinets under construction.
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