The Ascend Acoustics Sierra-LX ranks #15 out of 56 total Large Size Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#15 Ascend Acoustics Sierra-LX: $1598 Ascend Acoustics
Pros: Very neutral, flat frequency response - within about plus or minus 1.5dB ignoring one narrow dip. Bass extension down to about 40Hz in-room despite the compact size. Wide, well-balanced soundstage (~60 degrees). Solid build quality with a laminated bamboo cabinet.
Cons: Very low sensitivity at about 81dB, so it needs a genuinely powerful amplifier to reach normal listening levels. Noticeable midrange distortion becomes audible above about 82-83dB SPL. A narrow dip around 3.5kHz on-axis in larger rooms without sidewall reflections - toeing the speakers out 10-20 degrees fills it in, but adds some brightness to the treble. Sensitive to listening height - sitting even slightly above or below tweeter level noticeably shifts the tonal balance.
How it compares: Just above it: Revel M126Be - $2802 more, 5Hz higher bass extension (-3dB). Just below it: Philharmonic BMR Monitor - $602 more, 3Hz higher bass extension (-3dB).
| Bass Extension (-10dB) | 38Hz |
|---|---|
| Bass Extension (-3dB) | 47Hz |
| Dimensions | 14.3" x 7.5" x 10.5" (362 x 191 x 267 mm) |
| Drivers | 6" aluminum cone woofer, 26mm dome tweeter |
| Impedance | 8 ohms nominal (5.5 ohms minimum) |
| Output Power | 350W continuous, 500W peak |
| Sensitivity | 81dB (2.83V/1m, measured by Erin's Audio Corner) |
| Weight | 20.9 lbs / 9.5 kg |
| Woofer Cabinet | Bass reflex, flared rear port |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, I may be compensated if you make a purchase.
Product prices and availability were last checked August 12, 2026 at 5:33 PM UTC and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.