Definitive Technology ProMonitor 1000 Review: #79 of 87

Last updated: September 10, 2026

The Definitive Technology ProMonitor 1000 ranks #79 out of 87 total Medium Size Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.

Brand: Definitive Technology

Prices on this page were last checked September 9, 2026 at 6:54 PM UTC. Product prices and availability are accurate as of that date/time 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.

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Definitive Technology ProMonitor 1000 - ranked #79 of 87 Medium Size Bookshelf Speakers · Editor's rating 1.7/5
Check price at Amazon ($249.00) →

#79 Definitive Technology ProMonitor 1000: $249.00 Amazon eBay

Pros: Bass distortion is well controlled per the measurements, and the slow bass rolloff means it can be pushed fairly hard for its size. Ships with a footer that keeps the small cabinet planted despite its light weight.

Cons: CEA2034 spinorama shows severely reduced bass energy between 40-120Hz, a directivity mismatch between the tweeter and woofer, and a severe resonance/interference issue around 14kHz. Distortion at 96dB SPL was so bad the reviewer limited testing to 86dB. Direct comparison to a $118/pair Pioneer SP-BS22-LR left the reviewer calling the $500/pair ProMonitor 1000 “a bad experiment that should be forgotten” and concluding “there is nothing Pro about it.”

How it compares: Just above it: Polk T15 - $124 cheaper. Just below it: Sehlin Helium - $109 cheaper, 4Hz lower bass extension (-3dB).

Bass Extension (-10dB)80Hz (measured, Audio Science Review)
Bass Extension (-3dB)95Hz (measured, Audio Science Review)
Dimensions10.88H x 6.25W x 6.5D in
Drivers1" aluminum dome tweeter, 5.25" BDSS mid/woofer, 5.25" planar bass radiator
Frequency Response47Hz - 30kHz (Manufacturer specified)
Impedance8 ohms nominal
Sensitivity86dB (2.83V/1m, measured, Audio Science Review - reviewer noted this vs. a manufacturer spec of 91dB)
Weight7.3 lbs / 3.29 kg each
Woofer Cabinetpassive radiator
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