Short answer: the JBL Stage 250B. It ranks #52 of 88 bookshelf speakers by sound quality, rated 3.2/5, at $439.95; the Definitive Technology ProMonitor 1000 ranks #80, rated 1.7/5, and costs $498, which makes this an easy call rather than a real tradeoff.
Why pick the JBL Stage 250B: Good local Spinorama scores of 4.06 raw and 6.60 with a subwoofer, with smooth horizontal directivity from JBL’s next-generation HDI waveguide. Watch for: Its objective score is good rather than class-leading, and the rear port needs some wall clearance.
The case for the Definitive Technology ProMonitor 1000: Bass distortion is well controlled per the measurements, and the slow bass rolloff means it can be pushed fairly hard for its size. Watch for: 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.
Buy the JBL Stage 250B. It is rated higher for sound quality than the Definitive Technology ProMonitor 1000 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| JBL Stage 250B | Definitive Technology ProMonitor 1000 | |
|---|---|---|
| Price | $439.95 per pair | $498 per pair |
| Ranked | #52 of 88 in Medium Size Bookshelf Speakers | #80 of 88 in Medium Size Bookshelf Speakers |
| Enclosure | Passive 2-way rear-ported | - |
| Drivers | 1-inch aluminum tweeter, 5.25-inch polycellulose woofer | 1” aluminum dome tweeter, 5.25” BDSS mid/woofer, 5.25” planar bass radiator |
| Frequency Response | 50Hz-25kHz (-6dB) | 47Hz - 30kHz (Manufacturer specified) |
| Sensitivity | 86dB/2.83V/1m | 86dB (2.83V/1m, measured, Audio Science Review - reviewer noted this vs. a manufacturer spec of 91dB) |
| Impedance | 6 ohms | 8 ohms nominal |
| Recommended Power | 20-150W | - |
| Dimensions | 12.6H x 7.9W x 9.5D in | 10.88H x 6.25W x 6.5D in |
| Weight | 12.3 lbs (5.6 kg) each | 7.3 lbs (3.29 kg) each |
| Spinorama Preference Score | 4.06 | 3.2 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.60 | 6.58 (spinorama.org) |
| Bass Extension (-3dB) | 64.5Hz (measured, Erin’s Audio Corner via spinorama.org) | 95Hz (measured, Audio Science Review) |
| DIY Kit | No | No |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) | 80Hz (measured, Audio Science Review) |
| Power Handling | 75W RMS | - |
| Woofer Cabinet | ported, rear | passive radiator |
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Prices on this page were last checked September 26, 2026 at 11:14 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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The Two Speakers In Full
JBL Stage 250B: $439.95 per pair Amazon JBL eBay
Older model: the JBL Stage A130 (ranked lower, rated 2.1/5).
Pros: Good local Spinorama scores of 4.06 raw and 6.60 with a subwoofer, with smooth horizontal directivity from JBL’s next-generation HDI waveguide. The current Stage 2 model offers solid build details, magnetic grilles and useful 56Hz measured extension at an accessible price. Measured bass extension of 64.5Hz (-3dB).
Cons: Its objective score is good rather than class-leading, and the rear port needs some wall clearance. At 86dB sensitivity and six-ohm nominal impedance it is not especially easy to drive, while the compact woofer limits deep-bass output.
Full JBL Stage 250B review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 64.5Hz (measured, Erin’s Audio Corner via spinorama.org) |
| DIY Kit | No |
| Dimensions | 12.6H x 7.9W x 9.5D in |
| Drivers | 1-inch aluminum tweeter, 5.25-inch polycellulose woofer |
| Enclosure | Passive 2-way rear-ported |
| Frequency Response | 50Hz-25kHz (-6dB) |
| Impedance | 6 ohms |
| Power Handling | 75W RMS |
| Recommended Power | 20-150W |
| Sensitivity | 86dB/2.83V/1m |
| Spinorama Preference Score | 4.06 |
| Spinorama Preference Score with Perfect Sub | 6.60 |
| Weight | 12.3 lbs (5.6 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
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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.”
Full Definitive Technology ProMonitor 1000 review and specifications →
| Bass Extension (-10dB) | 80Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 95Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 10.88H x 6.25W x 6.5D in |
| Drivers | 1” aluminum dome tweeter, 5.25” BDSS mid/woofer, 5.25” planar bass radiator |
| Frequency Response | 47Hz - 30kHz (Manufacturer specified) |
| Impedance | 8 ohms nominal |
| Sensitivity | 86dB (2.83V/1m, measured, Audio Science Review - reviewer noted this vs. a manufacturer spec of 91dB) |
| Spinorama Preference Score | 3.2 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.58 (spinorama.org) |
| Weight | 7.3 lbs (3.29 kg) each |
| Woofer Cabinet | passive radiator |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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