Short answer: the Harbeth Super HL5plus XD2. It ranks #179 of 216 bookshelf speakers by sound quality, rated 3.1/5, at $7,990. The Harbeth M30.3 XD2 ranks #190, rated 2.8/5, at $6,290, $1,700 cheaper, which does not close the gap in sound quality.
The case for the Harbeth M30.3 XD2: The current version of the Harbeth Monitor 30, with an 8” (200mm) RADIAL4 mid/bass driver made by Harbeth and a 1” ferrofluid cooled tweeter in a compact front ported cabinet. The tradeoff: No independent measurements have been published for this version, so its linearity, directivity and real bass extension are unknown.
The Harbeth Super HL5plus XD2 is the better-sounding choice. A large three way stand mount with an 8 inch RADIAL4 mid/bass and a separate super tweeter, rated to 40Hz; Stereophile measured the previous XD version with an impressively even 30 degree listening window and a port tuned to 29Hz for deep bass extension. The catch: Expensive at about $7,990 a pair, and at 86dB sensitivity with equivalent load dips to about 2.5 ohms it wants a capable amplifier.
Buy the Harbeth Super HL5plus XD2. It is rated higher for sound quality, and saving $1,700 with the Harbeth M30.3 XD2 does not make up for the sound-quality gap.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Harbeth M30.3 XD2 2.4 to 3.2; Harbeth Super HL5plus XD2 2.8 to 3.4). Treat this verdict as provisional.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Harbeth M30.3 XD2 | Harbeth Super HL5plus XD2 | |
|---|---|---|
| Price | $6,290 per pair | $7,990 per pair |
| Ranked | #190 of 216 in Large Size Bookshelf Speakers Estimated | #179 of 216 in Large Size Bookshelf Speakers Estimated |
| Bass Extension (-3dB) | 50Hz (manufacturer specified) | - |
| DIY Kit | No | - |
| Dimensions | 18.1”H x 10.9”W x 10.8”D (460 x 277 x 275 mm) | 12.7”W x 25”H x 11.8”D (322 x 635 x 300 mm) |
| Drivers | 1” (25mm) ferrofluid cooled tweeter, 8” (200mm) RADIAL4 mid/bass driver | 200mm RADIAL4 mid/bass + 25mm ferrofluid cooled tweeter + 20mm dome super tweeter (each), 3-way |
| Frequency Response | 50Hz - 20kHz (+/-3dB, free space, manufacturer specified) | 40Hz - 20kHz (+/-3dB free space, grille on) (Manufacturer specified) |
| Impedance | 6 ohms | 6 ohms (Manufacturer specified) |
| Power Handling | 150W programme | - |
| Recommended Power | 25W per channel or more (manufacturer suggested) | - |
| Sensitivity | 85dB (2.83V/1m, manufacturer specified) | 86dB (2.83V/1m) (Manufacturer specified) |
| Weight | 25.6 lbs (11.6 kg) each | 34.8 lbs (15.8 kg) (each) |
| Woofer Cabinet | ported, front | - |
Related Speaker Comparisons
More worthwhile head-to-heads for Harbeth Super HL5plus XD2:
- Bowers & Wilkins 805 D4 vs Harbeth Super HL5plus XD2
- Harbeth Super HL5plus XD2 vs Triad In-Room Gold LCR
- Harbeth M30.3 XD2 vs Audio First Cadentia 3
- Harbeth M30.3 XD2 vs Perlisten R5m
- Harbeth M30.3 XD2 vs Arendal 1528 Monitor 8
Prices on this page were last checked October 11, 2026 at 4:59 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
Harbeth M30.3 XD2: $6,290 per pair Estimated House of Stereo $6,290 eBay
Older model: the Harbeth Monitor 30 (ranked lower, rated 2.5/5). See every Harbeth Monitor 30 generation.
Pros: The current version of the Harbeth Monitor 30, with an 8” (200mm) RADIAL4 mid/bass driver made by Harbeth and a 1” ferrofluid cooled tweeter in a compact front ported cabinet. Harbeth rates it at 50Hz to 20kHz within 3dB in free space with the grille on, and a 6 ohm load that it describes as easy to drive, with amplifiers from 25W per channel suggested. Handmade in England and offered in five real wood veneer finishes.
Cons: No independent measurements have been published for this version, so its linearity, directivity and real bass extension are unknown. The older Harbeth Monitor 30 measured with a deep on axis dip around the crossover region, and it isn’t known whether this revision changes that. Sensitivity is a modest 85dB at 2.83V, and the 50Hz lower limit means most rooms will want a subwoofer for deep bass. Harbeth tunes it for placement away from walls, and it costs far more than most 2 way standmounts.
Full Harbeth M30.3 XD2 review and specifications →
| Released | Aug 2025 (1 year ago) |
|---|---|
| Bass Extension (-3dB) | 50Hz (manufacturer specified) |
| DIY Kit | No |
| Dimensions | 18.1”H x 10.9”W x 10.8”D (460 x 277 x 275 mm) |
| Drivers | 1” (25mm) ferrofluid cooled tweeter, 8” (200mm) RADIAL4 mid/bass driver |
| Frequency Response | 50Hz - 20kHz (+/-3dB, free space, manufacturer specified) |
| Impedance | 6 ohms |
| Power Handling | 150W programme |
| Recommended Power | 25W per channel or more (manufacturer suggested) |
| Sensitivity | 85dB (2.83V/1m, manufacturer specified) |
| Weight | 25.6 lbs (11.6 kg) each |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Harbeth Super HL5plus XD2: $7,990 per pair Estimated Music Direct $7,990 eBay
Pros: A large three way stand mount with an 8 inch RADIAL4 mid/bass and a separate super tweeter, rated to 40Hz; Stereophile measured the previous XD version with an impressively even 30 degree listening window and a port tuned to 29Hz for deep bass extension. The cabinet showed only low level resonances, and the 6 ohm load is benign in magnitude.
Cons: Expensive at about $7,990 a pair, and at 86dB sensitivity with equivalent load dips to about 2.5 ohms it wants a capable amplifier. Measurements of the previous version showed presence region energy falling away off axis and narrowing treble above 7kHz, so the reflected sound is less even than the direct sound; the XD2 itself has not been independently measured.
Full Harbeth Super HL5plus XD2 review and specifications →
| Released | 2025 (1 year ago) |
|---|---|
| Dimensions | 12.7”W x 25”H x 11.8”D (322 x 635 x 300 mm) |
| Drivers | 200mm RADIAL4 mid/bass + 25mm ferrofluid cooled tweeter + 20mm dome super tweeter (each), 3-way |
| Frequency Response | 40Hz - 20kHz (+/-3dB free space, grille on) (Manufacturer specified) |
| Impedance | 6 ohms (Manufacturer specified) |
| Sensitivity | 86dB (2.83V/1m) (Manufacturer specified) |
| Weight | 34.8 lbs (15.8 kg) (each) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons