Short answer: the Wharfedale Diamond 220, since the JBL Studio 530’s flat on-axis curve hides a resonance problem. The Studio 530’s CEA2034 spinorama is fairly flat, but a peak around 1.4kHz traced to a tweeter resonance shows up as a distinct spike in harmonic distortion at that frequency, with a second resonance-driven bump near 2kHz. The Diamond 220 is smooth on axis once its grille is removed, though it rolls off below 200Hz.

Buy the Wharfedale Diamond 220 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Ascend Acoustics HTM-200SE2 instead.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Wharfedale Diamond 220 | JBL Studio 530 | |
|---|---|---|
| Price | $299 per pair Discontinued | $399 per pair Discontinued |
| Ranked | #28 of 90 in Medium Size Bookshelf Speakers | #44 of 90 in Medium Size Bookshelf Speakers |
| Drivers | 5” (130mm) woven Kevlar woofer, 1” (25mm) tweeter | 5.25” (130mm) PolyPlas™ cone woofer with SFG magnet, 1” (25mm) compression driver with Teonex® diaphragm on Bi-Radial® horn |
| Dimensions | 12.4”H x 6.9”W x 8.9”D (315 x 174 x 227 mm) | 18.4”H x 8.4”W x 8.7”D (467 x 214 x 222 mm) |
| Weight | 11.7 lbs (5.3 kg) each | 17 lbs (7.7 kg) each |
| Sensitivity | 86.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) | ~85dB (measured by Audio Science Review) |
| Impedance | 8 ohms | 6 ohms nominal (4 ohms minimum, measured by Audio Science Review) |
| Woofer Cabinet | ported, bottom-firing into secondary enclosure | ported |
| Bass Extension (-3dB) | 117.2Hz (measured, Audio Science Review) | 73.2Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 58.0Hz (measured, Audio Science Review) | 40Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Spinorama Preference Score | 3.40 | 5.21 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.64 | 7.29 (spinorama.org) |
| DIY Kit | No | No |
| Crossover Frequency | - | 1.5kHz |
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Prices on this page were last checked October 2, 2026 at 10:18 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
Wharfedale Diamond 220: $299 per pair Discontinued eBay
Newer model: the Wharfedale Diamond 12.1i. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.
Pros: Amir found the on-axis response smooth once the grille is removed, calling grille removal “a huge improvement” since the stock grille caused unusually strong comb filtering around 5kHz. Good horizontal dispersion from the waveguide-loaded tweeter and controlled distortion. After some EQ (a room mode filter and treble shelf), the reviewer called it “a truly hifi speaker” where “every audiophile track..sounded very good,” and said he was “happy to recommend” it for the budget class. Measured bass extension of 117.2Hz (-3dB), with a measured sensitivity of 86.9dB.
Cons: Response rolls off below 200Hz, so a subwoofer is recommended for full-range use. Some port rattling was noted at high volumes, traced to vibration rather than the woofer itself. Best performance requires removing the grille and applying the reviewer’s EQ filters. Discontinued, with only limited remaining stock available direct from Wharfedale.
Full Wharfedale Diamond 220 review and specifications →
| Bass Extension (-10dB) | 58.0Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 117.2Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 12.4”H x 6.9”W x 8.9”D (315 x 174 x 227 mm) |
| Drivers | 5” (130mm) woven Kevlar woofer, 1” (25mm) tweeter |
| Impedance | 8 ohms |
| Sensitivity | 86.9dB (2.83V/1m, measured, Audio Science Review; 86dB manufacturer specified) |
| Spinorama Preference Score | 3.40 |
| Spinorama Preference Score with Perfect Sub | 6.64 |
| Weight | 11.7 lbs (5.3 kg) each |
| Woofer Cabinet | ported, bottom-firing into secondary enclosure |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Wharfedale Diamond 220 vs Polk Audio XT15
- Wharfedale Diamond 220 vs KEF Q150
- Wharfedale Diamond 220 vs Boston Acoustics A25
- Wharfedale Diamond 220 vs Wharfedale Diamond 12.1
- Wharfedale Diamond 220 vs Wharfedale Super Denton
- Wharfedale Diamond 220 vs Klipsch RP-500M II
- Wharfedale Diamond 220 vs Monitor Audio Silver 50 7G
- Wharfedale Diamond 220 vs Revel M105
- See all 33 comparisons
JBL Studio 530: $399 per pair Discontinued eBay
Pros: CEA2034 spinorama shows a fairly flat on-axis response. Predicted in-room response is very smooth aside from the high-frequency roll-off. Measured bass extension of 73.2Hz (-3dB), with a measured sensitivity of 85dB.
Cons: A peak around 1.4kHz is attributed to a tweeter resonance, and shows up as a distinct spike in harmonic distortion at that frequency along with a second resonance-driven bump around 2kHz. Response rolls off in the high frequencies and the tuning is a bit bass-shy overall. Cumulative spectral decay (waterfall) shows the same 1kHz-region resonances lingering in time. Discontinued.
Full JBL Studio 530 review and specifications →
| Bass Extension (-10dB) | 40Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 73.2Hz (measured, Audio Science Review) |
| Crossover Frequency | 1.5kHz |
| DIY Kit | No |
| Dimensions | 18.4”H x 8.4”W x 8.7”D (467 x 214 x 222 mm) |
| Drivers | 5.25” (130mm) PolyPlas™ cone woofer with SFG magnet, 1” (25mm) compression driver with Teonex® diaphragm on Bi-Radial® horn |
| Impedance | 6 ohms nominal (4 ohms minimum, measured by Audio Science Review) |
| Sensitivity | ~85dB (measured by Audio Science Review) |
| Spinorama Preference Score | 5.21 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.29 (spinorama.org) |
| Weight | 17 lbs (7.7 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Studio 530 vs ELAC Debut 2.0 B5.2
- JBL Studio 530 vs Sony SS-CS5 M2
- JBL Studio 530 vs Paradigm Monitor SE Atom
- JBL Studio 530 vs JBL Stage 250B
- JBL Studio 530 vs Boston Acoustics A25
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- JBL Studio 530 vs Polk Audio XT15
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- See all 37 comparisons

