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$3,598.00

Introducing our new V2 Tower


"The midrange on the Towers...is a main event. Inner detail is fantastic even on large-ensemble recordings, and they are free from distortion and retain a hefty amount of dynamic headroom when played at spirited levels."
-Enjoy the Music.com

Combining the most advanced R&D lab equipment with sophisticated computer modeling, we have perfected a highly advanced crossover technology that we have been working on for over a decade. This new NFS optimized crossover better preserves dynamics and provides improved phase integration between the drivers.

Our new Tower V2 offers:

  • Deeper bass response and punchier mid-bass
  • Improved directivity for a more spacious presentation with a deeper and wider soundstage
  • An easier and more stable load to any amplifier or receiver
  • Considerably improved dynamics
  • Higher power handling and lower distortion levels

Equally adept at music and home theater, this speaker is extremely neutral and balanced, reproducing the source material accurately with the ability to convey a true emotional response in the listener.

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SIERRA TOWER V2 DESCRIPTION

 

In theory, our goals for this loudspeaker were quite simple, create a compact floor-standing loudspeaker with performance that rivals and even surpasses some of the most highly regarded speakers at any price. Our bookshelf speakers have proven to be a huge success and far exceeded our expectations regarding happy customers and positive reviews. Tens of thousands of pairs later, there can be no doubt that our design formula works so our direction was clear – use our same performance formula to develop a compact floor-standing loudspeaker of the highest performance standard.

Featuring our custom Titan dome tweeter built for us by SEAS in Norway, the Titan provides high frequency extension to 28kHz with exceptional transient response and ideal directivity. It features extremely wide dispersion, low distortion and very high power handling. Highs are crisp and airy with effortless dynamics and many layers of detail without ever sound harsh or fatiguing.

For those seeking even higher levels of detail and transparency combined with improved soundstage width and imaging, we offer a tweeter upgrade using our customized version of the best true ribbon tweeter on this planet, the RAAL 70-20xram, utilizing an amorphous core transformer (as opposed to iron/ferrite core.)

The midrange driver is housed in its own dedicated critically damped sealed enclosure within the cabinet and is designed to reproduce the critical midrange response. By isolating the midrange from the rest of the drivers, intermodulation distortion is greatly reduced and detail and separation between individual instruments is greatly improved.

Dual 5 ¼” long throw woofers handle the low end but don’t let the small size fool you, these woofers provide exceptionally tight and accurate bass reproduction well into the mid 30Hz range. Bass and mid-bass response are well balanced with surprising punch. These woofers hit hard and dig deep when required, but due to low mass and low stored energy combined with very low inductance, they are also detailed and subtle when need be. They will not gloss over notes that large diameter higher mass woofers can often miss.

All this combined in our exclusive minimal resonance 3-ply layered bamboo cabinet, the results speak for themselves… This is a loudspeaker that simply must be heard to describe.

Hand assembled, tested and packaged in the USA, we are so confident of the component and build quality of the Sierra Tower V2 that we are backing it by a comprehensive 7 year parts & labor warranty.  Left / right pairs are matched by hand to within ± 1dB and we are including a printout of the actual production line response measurements of each speaker. We dare say it, but you simply can not find this type of quality control, care and pride from products that are fully assembled and tested in overseas manufacturing facilities.

At Ascend, it is all about performance and we have found a unique way to offer exceptional natural beauty that also offers documented performance improvements. Now you can have that renowned Ascend performance AND good looks, all in a product that represents the very best of what we have to offer while joining the growing trend towards environmental responsibility.

We thank you for your interest!
 

SIERRA TOWER V2 FEATURES

 

  • All Sierra Towers are hand assembled, tested and packaged at our factory in Orange County, CA
  • A serialized production line frequency response measurement is included with each speaker
  • 7 year manufacturer's warranty + 30-day satisfaction guarantee

Cabinet:

  • Exclusive 3-ply vertically laminated bamboo cabinet construction dramatically reduces cabinet resonance for a cleaner, more detailed, and transparent performance
  • Cabinet is a stunningly beautiful natural hardwood finish, there are no veneers and as such, no need to be concerned about peeling veneers or wraps or veneer cracks
  • Cabinet is fully environmentally friendly as the bamboo we source is a completely renewable resource.
  • Fully magnetic speaker grille with no visible mounting parts
  • Unlike MDF, our bamboo cabinets are formaldehyde free (nearly all speaker cabinets use MDF)

Bass Woofers:

  • Injection molded mineral-filled polypropylene cone provides excellent stiffness and superior self-damping
  • Long-throw design for high power handling and extended bass
  • Cast aluminum frame for a exceptional rigidity and reduced resonance
  • Exceptionally large magnet system for improved damping and lifelike dynamics
  • Pure copper shorting ring to reduce distortion, linearize magnetic flux, and dramatically reduce inductance
  • Vented pole-piece and vented spider for enhanced air-flow and cooling, minimizing compression artifacts

Midrange Woofer:

  • Injection molded mineral-filled polypropylene cone provides excellent stiffness and superior self-damping
  • Extreme low mass design for improved transient reproduction and lower stored energy
  • Underhung voice coil for exceptional linearity and lower distortion
  • Large metal phase plug for improved dispersion and enhanced cooling
  • Inverted surround eliminates edge resonance
  • Pure copper shorting ring to reduce distortion, linearize magnetic flux, and dramatically reduce inductance
  • Vented pole-piece and vented spider for enhanced air-flow and cooling, minimizing compression artifacts

RAAL 70-20 Ribbon Tweeter:

  • Fully custom true ribbon tweeter manufactured by RAAL in Serbia to our specifications
  • True ribbon tweeter has no voice coil, the pure aluminum ribbon is the only electrical conductor and the only moving part
  • Extremely low moving mass design, typically less than 1/50th the mass of a dome tweeter, enabling near instantaneous acceleration / deceleration, and no stored energy all combined to provide near perfect transient reproduction
  • Class-leading horizontal dispersion width provides a huge soundstage and precise imaging
  • High powered neodymium magnets in a unique homogenous design (equal strength magnetic field throughout the entire ribbon area) provides lower distortion and less stress on the ribbon diaphragm
  • Critically damped rear chamber to absorb the back wave of the ribbon diaphragm, improving frequency response linearity and overall transparency
  • Amorphous core transformer as opposed to ferrite reduces saturation and compression for much improved micro-dynamics and detail

Titan Dome Tweeter:

  • Customized version of the SEAS Titan dome tweeter
  • Anodized 26mm aluminum/magnesium dome enabling pistonic behavior throughout the audible range
  • Titanium former for improved damping, better transient response, and massive power handling
  • Copper cap in the magnet system for lower inductance and reduced distortion
  • Large damped and tuned rear chamber for absorbing back-wave energy and lowering the resonant frequency
  • Integrated hexagrid protects the dome while improving dispersion
  • Very high power handling and a low Fs
  • Extremely wide dispersion with near ideal directivity

Crossover:

  • NFS optimized, highly advanced 3-way 2-layer design with a newly developed circuit topology that preserves dynamics and improves driver phase integration
  • Large open topology with proper inductor spacing and orientation to reduce mutual inductance and saturation
  • Heavy gauge pure copper traces to reduce resistance and provide higher power handling
  • Featuring metallized polypropylene capacitors
  • Air-core inductors in the direct signal path

SIERRA TOWER V2 SPECIFICATIONS

 

Typical In-Room Frequency Response 32Hz - 27kHz
Typical In-Room Sensitivity 91dB @ 2.83v / 1 meter
Nominal Impedance 8 ohms
Max Continuous Power* 300 watts
Max Short Term Peak Power* 500 watts
Cabinet Detail Exclusive V-LAM™ construction featuring 20mm thick vertically laminated 3-ply bamboo, internally braced. Bass reflex via flared rear port tube. Fully magnetic speaker grille with no visible mounting parts
Titan Dome Tweeter Option Customized version of SEAS "Titan" dome tweeter, with titanium former, 26mm aluminum/magnesium alloy dome, large tuned damping chamber and copper cap for reduced distortion and inductance
RAAL 70-20xram Ribbon Option Custom made RAAL true ribbon tweeter featuring a 20mm wide pure aluminum ribbon with a total moving mass less than 1/100th of a gram, large rear damping chamber and Amorphous core transformer instead of ferrite
Midrange Woofer Low mass 5.25” mineral-filled polypropylene cone woofer featuring an underhung voice coil, copper shorting rings, vented pole-piece, vented spider and aluminum phase plug, inverted surround for reduced edge resonance
Woofer (2) Proprietary 5.25” long-throw mineral-filled polypropylene cone woofers. Features non-resonant cast aluminum frame, copper shorting rings, low-inductance motor assembly, vented pole-piece and vented spider
Connections (2) gold plated all metal 5 way binding posts
   
Bass Extension (-6dB) 38Hz
Anechoic Frequency Response 48Hz - 27kHz +/- 3dB (based on Klippel NFS measurements)
Anechoic Sensitivity 88dB @ 2.83v / 1 meter
   
Dimensions H x W x D** 43" x 7.5" x 10.5"
Speaker Weight (each) 45 pounds
Shipping Weight (each) 55 pounds
   
Minimum Recommended Amplifier Power Rating for Speaker Distance to Listening Position
3 Feet or Less 2 watts minimum
9 Feet or Less 12 watts minimum
15 Feet or Less 33 watts minimum
21 Feet or More 65 watts minimum
   
     *Unclipped peaks      **Grille On

SIERRA TOWER V2 MEASUREMENTS

 

* The below anechoic measurements are high-resolution full-range 360-degree scans taken with our Klippel Near Field Scanner.  A minimum of 800 individual measurements are taken to generate these advanced measurements, typically requiring a minimum of 6 hours.  These are unsmoothed and fully conform to CEA/CTA-2034 standards.

These measurements are as accurate as is currently technically possible.

Due to the costs, space requirements and complexity, very few manufacturers own or have access to a Klippel NFS, nor would they ever publish such detailed data on their products. Ascend Acoustics is and always has dared to be different.

For information regarding the CTA-2034 standard, please click here: CTA-2034

For information regarding the Klippel NFS, please click here: Klippel NFS Video and Technical Data

 

Sierra Ribbon Tower V2 On-Axis

 

Sierra Ribbon Tower V2 CEA-2034

 

Sierra Ribbon Tower V2 PIR

 

Sierra Ribbon Tower V2 Early Reflections

 

Sierra Ribbon Tower V2 Contour Plot Horizontal

 

Sierra Ribbon Tower V2 Beamwidth Horizontal

 

Sierra Ribbon Tower V2 Contour Plot Vertical

 

Sierra Ribbon Tower V2 SPL Horizontal

 

Sierra Ribbon Tower V2 Impedance and Phase

 

Sierra Ribbon Tower V2 Off-Axis PIR

*Note: Our exclusive Off-Axis Estimated In-Room Response measurement is a critical performance metric. It is an accurate comparison of the differences a listener should expect to hear sitting at different off-axis angles from the speaker; on-axis, +/- 10 degrees horizontally, +/- 20 degrees horizontally and +/- 30 degrees horizontally.

This is a modern and more accurate prediction of in-room speaker performance at different listening angles compared to a simple off-axis measurement graph. This measurement graph accounts for both direct sound and indirect sound and requires thousands of individual off-axis measurements that are then processed through complex algorithms to derive the results. In comparison, an off-axis measurement is just a single response measurement that does not account for the actual directivity of the speaker and is not representative of what we actually hear.

This measurement clearly shows the unprecedented off-axis response of the Sierra Ribbon Tower V2. There is less than 1/4dB of deviation (inaudible) between the different off-axis positions and this is based on accepted science determining what the listener will hear from this speaker in a typical listening environment.

 

Sierra Titan Tower On-Axis

 

Sierra Titan Tower CEA-2034

 

Sierra Titan Tower PIR

 

Sierra Titan Tower Early Reflections

 

Sierra Titan Tower Contour Plot Horizontal

 

Sierra Titan Tower Beamwidth Horizontal

 

Sierra Titan Tower Contour Plot Vertical

 

Sierra Titan Tower SPL Horizontal

 

Sierra Titan Tower Impedance and Phase

 

Sierra Titan Tower Off-Axis PIR

*Note: Our exclusive Off-Axis Estimated In-Room Response measurement is a critical performance metric. It is an accurate comparison of the differences a listener should expect to hear sitting at different off-axis angles from the speaker; on-axis, +/- 10 degrees horizontally, +/- 20 degrees horizontally and +/- 30 degrees horizontally.

This is a modern and more accurate prediction of in-room speaker performance at different listening angles compared to a simple off-axis measurement graph. This measurement graph accounts for both direct sound and indirect sound and requires thousands of individual off-axis measurements that are then processed through complex algorithms to derive the results. In comparison, an off-axis measurement is just a single response measurement that does not account for the actual directivity of the speaker and is not representative of what we actually hear.

This measurement clearly shows the unprecedented off-axis response of the Sierra Titan Tower. There is less than 1/2dB of deviation (inaudible) between the different off-axis positions and this is based on accepted science determining what the listener will hear from this speaker in a typical listening environment.

SIERRA TOWER V2 SUMMARY

 

The Sierra Tower V2 offers massive performance in a compact and slim cabinet with about the same footprint as a pair of bookshelf speakers on stands. With good efficiency, startling dynamics and extremely wide dispersion, even larger rooms present no challenge.

Equally adept at music and home theater, but yet also suitable for the most discerning and critical listeners, Sierra Towers V2 easily set new performance standards both objectively and subjectively, offering proven performance at price points that are unmatched in this industry.

SIERRA TOWER V2 PAIR

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