Definitive Technology ProMonitor 1000 Review: #82 of 90

Last updated: October 1, 2026

The Definitive Technology ProMonitor 1000 ranks #82 out of 90 total Medium Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.

Brand: Definitive Technology

Prices on this page were last checked October 1, 2026 at 6:23 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 #82 of 90 Medium Size Bookshelf Speakers · Editor's rating 1.7/5
Check price at Amazon ($498 per pair) →

#82 Definitive Technology ProMonitor 1000: $498 per pair 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. Measured bass extension of 95Hz (-3dB), with a measured sensitivity of 86dB.

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 $249/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 - $100 cheaper, 3Hz higher bass extension (-3dB). 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)
DIY KitNo
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)
Spinorama Preference Score3.2 (spinorama.org)
Spinorama Preference Score with Perfect Sub6.58 (spinorama.org)
Weight7.3 lbs (3.29 kg) each
Woofer Cabinetpassive radiator
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