Ascend Acoustics Sierra-1 Reference Monitorsearch

Ascend Acoustics Sierra-1 Reference Monitor

Ascend Acoustics Sierra-1 Reference Monitor

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Audio Ascension

Boasting a sleek design and heavily researched technology, the Ascend Acoustics Sierra 1 focuses on delivering clean and accurate sound production comparable to speakers well above its price point. Check out impressions, comparisons, and more on the official Ascend Acoustics Sierra thread.

Note: This drop is for a pair of speakers. At checkout, you'll have your choice of finish: natural, piano black, satin dark cherry, or satin espresso.

Sound Technology & Build

Equipped with a custom SEAS 1-inch soft-dome tweeter, the Sierra 1 features a unique semi-waveguide insert to help maintain a good off-axis response, reduce diffraction, and absorb stray high frequencies. The custom 5.25-inch long-throw woofer delivers powerful linear bass, resulting in a clean separation from the midrange. Durable and aesthetically pleasing, the Sierra 1 is constructed from long and slender laminated bamboo panels, making it sturdy and resistant to harsh climates. Not only does the bamboo construction look and feel great, but it also dramatically reduces energy loss and resonance on a level equivalent to a 3-inch-thick slab of MDF.

Measurements & Upgrade Options

Four and a half years in the making, the Sierra-1 brings you best-in-class bass and dynamics, with a level of accuracy and detail that will impress. Ascend Acoustics has the engineering to back up the claims, and you can find measurements on the Sierra-1 unsmoothed and using a 5 dB/division scale in the gallery below. This coupled with a 7-year parts and labor warranty ensures your speakers will bring music to your ears for a very long time to come.

Sierra-1 Measurements


  • Ascend Acoustics
  • Tweeter: SEAS 1" high-definition soft-dome tweeter with integrated elastomer waveguide, wide surround, low-viscosity magnetic fluid cooling, and pole-piece damping chamber
  • Woofer: Proprietary 5.25” long-throw mineral-filled polypropylene cone with non-resonant cast aluminum frame, copper shorting rings, low-inductance motor assembly, and vented pole piece and spider
  • Cabinet: Exclusive V-LAM construction with vertically laminated bamboo
  • Bass reflex via flared rear port tube
  • 20 x 1/4 in (6.3 mm) inserts for mounting to stands
  • Connectors: 2 gold-plated all-metal 5-way binding posts
  • Typical in-room frequency response: 39 Hz–22 kHz +/- 3 dB
  • In-room sensitivity: 87 dB at 1 W/1 m
  • Frequency response (anechoic): 44 Hz–22 kHz +/- 3 dB
  • Sensitivity (anechoic): 86.5 dB at 1 W / 1 m
  • Average impedance: 8 ohms
  • Minimum recommended power: 45 W
  • Maximum continuous power: 200 W maximum
  • Short term peak power: 400 W
  • Dimensions: 14.25 x 7.5 x 10.5 in (36.2 x 19 x 26.6 cm)
  • Weight: 20 lbs (9 kg)


  • Pair of speakers
  • 7-year parts and labor warranty


Domestic orders will be shipped by the vendor.

Estimated ship date is July 11, 2018 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.