Short answer: the Wharfedale Diamond 12.1 for better sound quality, the JBL Stage A130 for the lower price. The Wharfedale Diamond 12.1 ranks #10 of 34 bookshelf speakers at $599. The JBL Stage A130 ranks #32 at $399, $200 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. 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…
What the JBL Stage A130 offers: More constant, better-behaved directivity than the smaller A120 once past the tweeter crossover point, giving a more consistent radiation pattern that likely explains some of its positive reception among other reviewers. Watch for: Still shows the same underlying “Batman”-shaped response pattern as the A120: a bass bump, a midrange dip, a cabinet-resonance peak around 800Hz-1.7kHz (confirmed via accelerometer testing on the cabinet panels), and roughly a…
Buy the Wharfedale Diamond 12.1 if sound quality matters more than the price. Buy the JBL Stage A130 if the price matters more than sound quality.
If sound quality matters at all to you, skip the JBL Stage A130. It ranks near the bottom of the 34 bookshelf speakers, so look higher up the list instead.
Specifications Side By Side
| Wharfedale Diamond 12.1 | JBL Stage A130 | |
|---|---|---|
| Price | $599 Discontinued | $399 Discontinued |
| Ranked | #10 of 34 in Medium Size Bookshelf Speakers | #32 of 34 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) | 66Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.6kHz | 3.2kHz |
| Dimensions | 12.2"H x 7"W x 10.9"D (310 x 178 x 277 mm) | 12.6"H x 7.5"W x 9.1"D (321 x 190 x 230 mm) |
| Impedance | 8 ohms nominal (3.9 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 84dB (measured by Erin’s Audio Corner; 87dB manufacturer specified) | 85.2dB (measured, Erin’s Audio Corner) |
| Drivers | 5" advanced polypropylene cone woofer, 1" textile dome tweeter | 5.25" (133mm) polycellulose woofer, 1" (25mm) aluminum dome tweeter |
| Discontinued | Yes | Yes |
| Weight | 15 lbs / 6.8 kg each | 12 lbs / 5.45 kg each |
| Woofer Cabinet | ported | ported |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL L52 Classic vs Jamo C 93 II
- KEF Q150 vs Jamo C 93 II
- JBL Stage 2 250B vs Jamo C 93 II
- JBL Studio 530 vs Wharfedale Diamond 12.1
- KEF Q150 vs Wharfedale Diamond 12.1
The Two Speakers In Full
Wharfedale Diamond 12.1: $599 Discontinued
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 Frequency | 2.6kHz |
| Dimensions | 12.2"H x 7"W x 10.9"D (310 x 178 x 277 mm) |
| Discontinued | Yes |
| Drivers | 5" advanced polypropylene cone woofer, 1" textile dome tweeter |
| Impedance | 8 ohms nominal (3.9 ohms minimum above 80Hz, measured, Erin's Audio Corner) |
| Sensitivity | 84dB (measured by Erin's Audio Corner; 87dB manufacturer specified) |
| Weight | 15 lbs / 6.8 kg each |
| Woofer Cabinet | ported |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Wharfedale Diamond 12.1 vs Radiant Acoustics Clarity 4.2
- Wharfedale Diamond 12.1 vs Klipsch RP-500M II
- Wharfedale Diamond 12.1 vs KEF Q150
- Wharfedale Diamond 12.1 vs Arendal 1961 Monitor
- Wharfedale Diamond 12.1 vs KEF LS50 Meta
- Wharfedale Diamond 12.1 vs JBL Studio 530
- Wharfedale Diamond 12.1 vs Ascend Sierra 1 v2
- Wharfedale Diamond 12.1 vs Audiofirst Fidelia
- See all 9 comparisons
JBL Stage A130: $399 Discontinued
Pros: More constant, better-behaved directivity than the smaller A120 once past the tweeter crossover point, giving a more consistent radiation pattern that likely explains some of its positive reception among other reviewers. Distortion at 96dB measures slightly better than a direct competitor (Emotiva Airmotiv B1+) in the low end, though slightly worse at high frequencies. The tweeter itself sounded decent to the reviewer, who considers it a reasonable value at its price point despite other reservations. Wide, well-filled horizontal radiation through the midrange.
Cons: Still shows the same underlying “Batman”-shaped response pattern as the A120: a bass bump, a midrange dip, a cabinet-resonance peak around 800Hz-1.7kHz (confirmed via accelerometer testing on the cabinet panels), and roughly a 5dB treble bump around 10kHz. Does not include a port bung, so sealed-cabinet listening requires DIY stuffing rather than a proper factory solution. The reviewer’s own measurements notably diverge from another well-known publication’s results on this same model, possibly reflecting a running production change, though this couldn’t be confirmed. Overall sound quality struck the reviewer as not a good-sounding speaker despite the more favorable measurements relative to the A120. Output-limited at extreme volumes (102dB), similar to its smaller sibling. Loses to the similarly-priced Emotiva Airmotiv B1+ in overall linearity and neutrality, according to the reviewer’s direct comparison. Discontinued.
Full JBL Stage A130 review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 66Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 3.2kHz |
| Dimensions | 12.6"H x 7.5"W x 9.1"D (321 x 190 x 230 mm) |
| Discontinued | Yes |
| Drivers | 5.25" (133mm) polycellulose woofer, 1" (25mm) aluminum dome tweeter |
| Impedance | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 85.2dB (measured, Erin's Audio Corner) |
| Weight | 12 lbs / 5.45 kg each |
| Woofer Cabinet | ported |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons