Model 11 PDF Print E-mail

Price $11,000

The Model 11 speaker is a smaller version of the Model 10.  It is the best small speaker Roger knows how to make after 30+ years of research, design, and testing of electrostatic speaker.

 

The Model 11 was designed specifically for Asian customers who have very small homes but who insist in the very finest performance possible in a small speaker.  Therefore, the Model 11 is not built to a cheaper price point than the larger speaker.  It is a no-compromise speaker except that it is smaller than the Model 10.  And like the Model 10, it solves all the problems that plague other electrostatic speakers.

DDDwalnut11 The Model 11 will play at concert hall levels and can be used with multi-thousand watt amplifiers without arcing or damage.  No protective circuitry is used or needed.  It will reproduce the full dynamic range of any music without strain.  It cannot quite match the high output levels of the Model 10, but will still play at ear-bleeding levels.
 
Deep powerful bass is assured with the use of a transmission line woofer system.  But while the larger Model 10 uses a 10 inch (25 cm) woofer and an 8.6 foot transmission line, the Model 11 uses a smaller, 8 inch (20 cm) woofer and a 5 foot transmission line.  As a result, the Model 11 will not go quite as deep as the Model 10.  But this can only be noticed on the rare music that has extremely deep, powerful bass.
 
Passive crossovers are not used as they are seriously flawed and degrade the performance of any speaker.  Expensive electronic crossovers and biamplification is used to achieve spectacular levels of performance.
 
The Model 11 only comes with the latest in digital crossover technology.   Digital crossovers offer steeper crossover slopes (48 dB/octave) than analog crossovers (24 dB/octave), which means that the crossover point can be much lower as well.  A crossover frequency of 260 Hz is used in the Model 11 (although the user can change this if he wishes).
 
The digital crossover is just that -- a crossover.  There is no amplifier built into it.  So an ESL amplifier is included as part of the speaker system to use on either the woofers or the ESL.  You can supply another amplifier of your choice to power the other driver (another ESL amp would be an excellent choice).   The ESL amp comes with either a black or silver face plate and if you buy a second ESL amp or Magtech amp, you will have a matched pair.
 
The digital crossover is incredibly flexible and allows you to totally control all aspects of speaker performance.  You can alter the crossover point (any frequency you wish), the crossover slopes (6 dB/octave to 48 dB/octave), the filter types (Butterworth, Bessel, or Linquitz-Riley), the equalization of both the woofer and the ESL, the gains of all channels and of the equalization, the phasing, time delay, and even the time-alignment of the drivers.   You can match the acoustics of your room and your personal taste better than with any other crossover.  In short, you can get the speakers to sound any way you wish.
 
The digital crossover is really a small computer.  It has a graphic screen on its faceplate that you can use to make adjustments and you can even plug it into a personal computer and make all adjustments from your computer. 
 
Of course, the digital crossover comes from the factory completely programmed so that you can simply plug it in and the system will be operational.  You do not have to make any adjustments.  But it is nice to know that you can if you wish.
 
The digital crossover can be operated both balanced and unbalanced.  It has both analog and digital inputs and outputs.  So you can feed it a digital signal directly (such as from the digital output of a CD player) if you prefer doing so rather than feeding it an analog signal.
 
The digital crossover has superb specifications, with distortion less than 0.004%, S/N greater than 96 dB, and utterly flat frequency response.  It operates at 25/96 (24 bit, 96 KHz sampling).  So do not think that it degrades the sound because it is digital.  It sounds perfectly transparent.

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Features
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•    Perfect Insulation
•    The amplifier cannot damage the Ultrastat panel.
•    No protective circuitry required.
•    Panel is arc-proof.
•    Extremely rugged and durable.
•    Immune to dust, dirt, humidity, insects, pet fur, and foreign objects.

•    Higher sensitivity (94 dB)

•    Highest precision - made with computerized diamond routing equipment.

•    Greater percentage of open area and visual transparency.

•    More attractive appearance than perforated metal designs.

•    Includes ESL Amplifier.

•    Both balanced and unbalanced inputs and outputs are standard.

•    Includes Digital Electronic Crossover which allows you to completely control all aspects of crossover/speaker parameters.
 
    This includes:
  •        Crossover Frequency
  •        Crossover Slope (up to 48dB per octave)
  •        Filter Types (Butterworth, Bessel, Linquitz-Riley)
  •        Phasing
  •        Equalization 
  •        Various Gains
  •        Time Alignment

•    Crossover accepts both analog and digital inputs.

•    Crossover has front panel graphics display.

•    All functions are available from both the front panel or by attachment to a personal computer.
•     Voltage is user selectable for use world-wide.

•    Highly efficient operation permits the electronics to be left on continually without concern for electricity usage.
 
 
 
Two wood finishes available:
Speaker-cherry-panelSpeaker-walnut-panel
Shown on left is a Model 10 in Natural Cherry & on right is a Model 11 in Natural Walnut
NEW! We have now added a black finish.
    
Specifications
 
 Speaker Dimensions  11" W x 13"D x 64" H (29.9cm x 33cm x 162.6 cm)
 Speaker Net Weight (assembled)
 60  pounds (27.3kg)
 Shipping Weight 5 boxes
 Total shipping weight 200 lbs (90.9kg)
 ESL Panel Size  11" x 40" (27.9cm x 101.6cm)
 ESL Power Handling 
 Unlimited for any amplifier intended for domestic use
 Bass Driver  8"
 Bass Design  Transmission Line
 Sensitivity 
 94 dB
 Frequency Response  20 Hz. to 27 KHz. +/- 2 dB
Crossover Frequency

User Adjustable

Factory Settings 260 Hz @ 48 dB/octave,  Linquitz-Riley filter

 Crossover Dimensions 17” W x 6” D x 1 ¾” H (432.cm x 15.2cm x 4.4cm)
 ESL Amplifier Power

360 watts RMS / Channel 8 ohms

700 watts RMS / Channel 4 ohms

 Amplifier Dimensions 17" wide x 5.5" tall x 16" deep (43cm x 14cm x 40.6cm)
 Weight  52 pounds (23.6kg)
Both Balanced and Unbalanced Input / Output Connections
 
Speakers and Electronics are manufactured in Conifer, Colorado. 
 

We sell Direct World-Wide  (along with select dealers) 
Prices apply World-Wide.
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