Wharfedale Diamond 12.1 vs JBL Stage 2 250B

Last updated: August 24, 2026

Short answer: the Wharfedale Diamond 12.1 for better sound quality, the JBL Stage 2 250B for the lower price. The Wharfedale Diamond 12.1 ranks #20 of 71 bookshelf speakers at $599. The JBL Stage 2 250B ranks #45 at $349.95, $249.05 cheaper.

What the Wharfedale Diamond 12.1 offers: A budget two-way bookshelf speaker (5” polypropylene woofer, 1” textile dome tweeter) that measures well for its price: harmonic distortion at 86dB stays under 1% THD down to about 60Hz, genuinely good for a 5” mid-woofer. Wide horizontal radiation of about ±60° up to roughly 5kHz before the tweeter starts to beam. Tonally smooth and easy to listen to at moderate volumes, with a pleasant, non-fatiguing character the reviewer said he’d happily recommend to someone who wants noticeably better fit, finish and looks than typical speakers in the $300-400 range. A high-pass crossover around 80Hz meaningfully cleans up midrange multitone distortion, so pairing it with a subwoofer helps more than usual for a speaker this size. Watch for: A dip of about 3dB in the 1-3kHz crossover region (on-axis, in the predicted in-room response, and even off-axis) gives the speaker a soft, “laid-back” character that noticeably saps attack and transient bite from drums, guitar and other percussive material - possibly an intentional BBC-style dip, but one the reviewer would still prefer tuned flat. Vertical directivity is unusually tight for this class of speaker, holding together only within about ±5° of the tweeter axis before a real hole opens up in the response, so seating height matters a lot more than on most bookshelf designs. Diffraction artifacts around 3kHz and 5kHz show up as differences between the listening-window and on-axis curves. Distortion climbs well past acceptable levels at higher output - harmonic distortion exceeds 3% around 150Hz at 96dB (versus under 1% at 86dB), multitone distortion tops 10% at 96dB/1m, and real compression sets in between 96-102dB (about 1.5dB of lost dynamic range around 300Hz at 102dB/1m, roughly equivalent to 92dB for a pair at 4m in a room) - a genuine limitation on how loud or how far away this speaker can be pushed. Measured average sensitivity (84dB) runs a few dB below the 87dB spec. Only a 5” woofer, so a subwoofer is required for real bass.

What the JBL Stage 2 250B offers: Consistent, EQ-able dips in the frequency response mean the tonal issues are at least correctable if you’re willing to use equalization. Horizontal dispersion is reasonably wide and controlled (~50-60 degrees). The tweeter itself holds up fine under compression testing - it’s the midwoofer that gives out first. Watch for: The reviewer was “even less enthusiastic” about this one than its disappointing floorstanding sibling. A confusing, hard-to-place tonal signature - a lower-midrange dip creates a recessed, lacking-attack character that’s then partly offset by a rebound around 2-4kHz, so it reads as recessed and forward at different times depending on the material. Treble falls off sharply above 6-7kHz, same issue as the larger 280F. Multitone distortion at 96dB is genuinely poor - well over 3%, reportedly around 10% at some frequencies. Limited bass extension (F3 64Hz, F10 50Hz) means a subwoofer is basically required if used as main speakers. Compression sets in early on the bass/midwoofer at higher output. The reviewer explicitly recommends the similarly-priced Polk Reserve R200/R100 instead for anyone who wants a more linear, EQ-free sound.

Buy the Wharfedale Diamond 12.1 if sound quality matters more than the price. Buy the JBL Stage 2 250B if the price matters more than sound quality.

Buy the JBL Stage 2 250B at Amazon ($349.95) →

Wharfedale Diamond 12.1 vs JBL Stage 2 250B

Specifications Side By Side

Wharfedale Diamond 12.1 JBL Stage 2 250B
Price$599 Discontinued$349.95
Ranked#20 of 71 in Medium Size Bookshelf Speakers#45 of 71 in Medium Size Bookshelf Speakers
Bass Extension (-10dB)46Hz (measured, Erin’s Audio Corner)50Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)61Hz (measured, Erin’s Audio Corner)64Hz (measured, Erin’s Audio Corner)
Crossover Frequency2.6kHz-
Dimensions12.2"H x 7"W x 10.9"D (310 x 178 x 277 mm)12.6"H x 7.9"W x 9.5"D (321.0 x 200.0 x 241.0 mm)
Impedance8 ohms nominal (3.9 ohms minimum above 80Hz, measured, Erin’s Audio Corner)6 ohms nominal, 3.3 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity84dB (measured by Erin’s Audio Corner; 87dB manufacturer specified)86dB (2.83V/1m, measured by Erin’s Audio Corner)
Drivers5" advanced polypropylene cone woofer, 1" textile dome tweeter1" anodized aluminum dome tweeter with HDI waveguide, 5.25" polycellulose woofer
DiscontinuedYes-
Weight15 lbs / 6.8 kg each12.3 lbs / 5.6 kg (12.4 lb) per pair
Woofer Cabinetportedported, rear
Output Power-75W RMS
Buy the JBL Stage 2 250B at Amazon ($349.95) →

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Prices on this page were last checked August 24, 2026 at 6:53 AM 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

Wharfedale Diamond 12.1: $599 Discontinued eBay

Wharfedale Diamond 12.1 ranking card

Pros: A budget two-way bookshelf speaker (5” polypropylene woofer, 1” textile dome tweeter) that measures well for its price: harmonic distortion at 86dB stays under 1% THD down to about 60Hz, genuinely good for a 5” mid-woofer. Wide horizontal radiation of about ±60° up to roughly 5kHz before the tweeter starts to beam. Tonally smooth and easy to listen to at moderate volumes, with a pleasant, non-fatiguing character the reviewer said he’d happily recommend to someone who wants noticeably better fit, finish and looks than typical speakers in the $300-400 range. A high-pass crossover around 80Hz meaningfully cleans up midrange multitone distortion, so pairing it with a subwoofer helps more than usual for a speaker this size.

Cons: A dip of about 3dB in the 1-3kHz crossover region (on-axis, in the predicted in-room response, and even off-axis) gives the speaker a soft, “laid-back” character that noticeably saps attack and transient bite from drums, guitar and other percussive material - possibly an intentional BBC-style dip, but one the reviewer would still prefer tuned flat. Vertical directivity is unusually tight for this class of speaker, holding together only within about ±5° of the tweeter axis before a real hole opens up in the response, so seating height matters a lot more than on most bookshelf designs. Diffraction artifacts around 3kHz and 5kHz show up as differences between the listening-window and on-axis curves. Distortion climbs well past acceptable levels at higher output - harmonic distortion exceeds 3% around 150Hz at 96dB (versus under 1% at 86dB), multitone distortion tops 10% at 96dB/1m, and real compression sets in between 96-102dB (about 1.5dB of lost dynamic range around 300Hz at 102dB/1m, roughly equivalent to 92dB for a pair at 4m in a room) - a genuine limitation on how loud or how far away this speaker can be pushed. Measured average sensitivity (84dB) runs a few dB below the 87dB spec. Only a 5” woofer, so a subwoofer is required for real bass. Discontinued.

Full Wharfedale Diamond 12.1 review and specifications →

Bass Extension (-10dB)46Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)61Hz (measured, Erin's Audio Corner)
Crossover Frequency2.6kHz
Dimensions12.2"H x 7"W x 10.9"D (310 x 178 x 277 mm)
DiscontinuedYes
Drivers5" advanced polypropylene cone woofer, 1" textile dome tweeter
Impedance8 ohms nominal (3.9 ohms minimum above 80Hz, measured, Erin's Audio Corner)
Sensitivity84dB (measured by Erin's Audio Corner; 87dB manufacturer specified)
Weight15 lbs / 6.8 kg each
Woofer Cabinetported
Search eBay for Wharfedale Diamond 12.1 →

JBL Stage 2 250B: $349.95 Amazon eBay

JBL Stage 2 250B ranking card

Pros: Consistent, EQ-able dips in the frequency response mean the tonal issues are at least correctable if you’re willing to use equalization. Horizontal dispersion is reasonably wide and controlled (~50-60 degrees). The tweeter itself holds up fine under compression testing - it’s the midwoofer that gives out first.

Cons: The reviewer was “even less enthusiastic” about this one than its disappointing floorstanding sibling. A confusing, hard-to-place tonal signature - a lower-midrange dip creates a recessed, lacking-attack character that’s then partly offset by a rebound around 2-4kHz, so it reads as recessed and forward at different times depending on the material. Treble falls off sharply above 6-7kHz, same issue as the larger 280F. Multitone distortion at 96dB is genuinely poor - well over 3%, reportedly around 10% at some frequencies. Limited bass extension (F3 64Hz, F10 50Hz) means a subwoofer is basically required if used as main speakers. Compression sets in early on the bass/midwoofer at higher output. The reviewer explicitly recommends the similarly-priced Polk Reserve R200/R100 instead for anyone who wants a more linear, EQ-free sound.

Full JBL Stage 2 250B review and specifications →

Bass Extension (-10dB)50Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)64Hz (measured, Erin's Audio Corner)
Dimensions12.6"H x 7.9"W x 9.5"D (321.0 x 200.0 x 241.0 mm)
Drivers1" anodized aluminum dome tweeter with HDI waveguide, 5.25" polycellulose woofer
Impedance6 ohms nominal, 3.3 ohms minimum (measured, Erin's Audio Corner)
Output Power75W RMS
Sensitivity86dB (2.83V/1m, measured by Erin's Audio Corner)
Weight12.3 lbs / 5.6 kg (12.4 lb) per pair
Woofer Cabinetported, rear
Check current price at Amazon ($349.95) →Search eBay for JBL Stage 2 250B →