Short answer: the Moondrop M4P MTM. It ranks #14 of 168 bookshelf speakers by sound quality (rated 4.2/5) at $920 and is still sold new; the JBL Studio 530 ranks #80 (rated 3.3/5) and is discontinued, so it is only an option used.
What the JBL Studio 530 does well: CEA2034 spinorama shows a fairly flat on-axis response. Watch for: 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.
The Moondrop M4P MTM is the better-sounding option. MTM (mid-tweeter-mid) two-way layout with dual 4” carbon-cone woofers flanking a 1” aluminum-magnesium dome tweeter, crossed over at 1.8kHz. The tradeoff: Vertical placement is very fussy: staying within about ±20° of the tweeter axis is essential, because the two woofers cancel each other through the crossover region (classic MTM lobing).
Buy the Moondrop M4P MTM. It is rated higher for sound quality, and the JBL Studio 530 is discontinued, so it is only available used.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| JBL Studio 530 | Moondrop M4P MTM | |
|---|---|---|
| Price | $399 per pair Discontinued | $920 per pair |
| Ranked | #80 of 168 in Medium Size Bookshelf Speakers | #14 of 168 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 73.2Hz (measured, Audio Science Review) | 69Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 40Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 46Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 1.5kHz | 1800Hz |
| Dimensions | 18.4”H x 8.4”W x 8.7”D (467 x 214 x 222 mm) | 15”H x 6.1”W x 7.3”D (380 x 155 x 185 mm) |
| Impedance | 6 ohms nominal (4 ohms minimum, measured by Audio Science Review) | 4 ohms nominal, 3.7 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Sensitivity | ~85dB (measured by Audio Science Review) | 85dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner) |
| Drivers | 5.25” (130mm) PolyPlas™ cone woofer with SFG magnet, 1” (25mm) compression driver with Teonex® diaphragm on Bi-Radial® horn | 2x 4” (87mm) carbon cone woofer, 1” (25mm) aluminum/magnesium dome tweeter |
| Weight | 17 lbs (7.7 kg) each | 13.7 lbs (6.2 kg) each |
| Woofer Cabinet | ported | ported |
| Spinorama Preference Score | 5.21 (spinorama.org) | 5.05 |
| Spinorama Preference Score with Perfect Sub | 7.29 (spinorama.org) | 7.59 |
| DIY Kit | No | No |
| Power Handling | - | 75W rated / 150W max |
Related Speaker Comparisons
More worthwhile head-to-heads for Moondrop M4P MTM:
- Ascend Sierra 1 v2 vs Moondrop M4P MTM
- KEF LS50 Meta vs Moondrop M4P MTM
- Arendal 1961 Monitor vs Moondrop M4P MTM
- Ascend Acoustics Luna V2 Mini-Monitor Titan vs Moondrop M4P MTM
- Klipsch RP-500M II vs Moondrop M4P MTM
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The Two Speakers In Full
JBL Studio 530: $399 per pair Discontinued eBay
Newer model: the JBL Studio 630, rated 3.6/5 (also discontinued).
Same family: the JBL Studio 590 (floorstanding, rated 2.8/5) and the JBL Studio 520C (center, rated 3.4/5).
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
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Moondrop M4P MTM: $920 per pair Shenzhen Audio eBay
Pros: MTM (mid-tweeter-mid) two-way layout with dual 4” carbon-cone woofers flanking a 1” aluminum-magnesium dome tweeter, crossed over at 1.8kHz. Wide horizontal radiation of about ±60° through the midrange and still around ±50° near the tweeter, giving an expansive, enveloping soundstage on well-recorded stereo material. Noticeable mid-bass “thump” around 100-160Hz that adds a sense of punch and kick-drum impact, more pronounced than the reviewer’s Audiofirst Fidelia reference. Rolled-off, laid-back treble (roughly 1-2dB below linear) rather than the 2-5dB high-frequency boost common on speakers marketed as “detailed”: a plus for listeners who find brighter speakers fatiguing. Tonal balance stays consistent whether pointed straight on or toed out about 30°, so side-to-side seating position doesn’t change the sound much. At $920/pair in a compact monitor cabinet (13-14 lbs), reasonably priced for the format. Measured bass extension of 69Hz (-3dB), with a measured sensitivity of 85dB.
Cons: Vertical placement is very fussy: staying within about ±20° of the tweeter axis is essential, because the two woofers cancel each other through the crossover region (classic MTM lobing). Sit above or below that window and the upper midrange loses clarity and detail. SPL-limited: noticeable compression showed up both subjectively (thinner-sounding transients at 80-85dB/10 feet) and in measurements, with roughly 1.5dB of dynamic-range loss and about 3dB of added distortion under instantaneous compression testing. Harmonic distortion jumps substantially at 96dB versus 86dB (mostly second-order, so less audible than it looks on paper), and multitone distortion rides right at the reviewer’s 3% threshold at full output. Low impedance (3.7-ohm minimum, 1.7-ohm minimum EPDR) means a Class AB amp may run hot over longer sessions; a Class D amp is recommended for better thermal headroom. Designed primarily for nearfield use (about 1 meter); farfield listening is more of a gamble since dynamic range drops off noticeably at distance. Slight sibilance and a mild upper-midrange dip give a touch of a recessed, warm character alongside the bass emphasis. Bass reaches only about 50-60Hz in-room, and not with much volume before running into the SPL limits noted above.
Full Moondrop M4P MTM review and specifications →
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 69Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 1800Hz |
| DIY Kit | No |
| Dimensions | 15”H x 6.1”W x 7.3”D (380 x 155 x 185 mm) |
| Drivers | 2x 4” (87mm) carbon cone woofer, 1” (25mm) aluminum/magnesium dome tweeter |
| Impedance | 4 ohms nominal, 3.7 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Power Handling | 75W rated / 150W max |
| Sensitivity | 85dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.05 |
| Spinorama Preference Score with Perfect Sub | 7.59 |
| Weight | 13.7 lbs (6.2 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Moondrop M4P MTM vs Ascend Acoustics Luna V2 Mini-Monitor Titan
- Moondrop M4P MTM vs Arendal 1961 Monitor
- Moondrop M4P MTM vs KEF LS50 Meta
- Moondrop M4P MTM vs Ascend Sierra 1 v2
- Moondrop M4P MTM vs Klipsch RP-500M II
- Moondrop M4P MTM vs Wharfedale Diamond 12.1
- Moondrop M4P MTM vs Radiant Acoustics Clarity 4.2
- Moondrop M4P MTM vs KEF Q150
- See all 10 comparisons