Short answer: the Moondrop M4P MTM. It ranks #14 of 160 bookshelf speakers by sound quality, rated 4.2/5, at $920. The ELAC Uni-Fi 2.0 UB52 ranks #130, rated 2.4/5, at $599, $321 cheaper, a saving that is not big enough to make up the sound-quality gap.
The ELAC Uni-Fi 2.0 UB52 is the deeper-bass pick. Wide, smooth horizontal directivity: beamwidth holds to about ±60 degrees up to 8kHz before narrowing. Its bass reaches about 55.7Hz before falling 3dB, against 69Hz for the Moondrop M4P MTM. Watch for: Dipped 3db from 1.5-3kHz.
The Moondrop M4P MTM is the better-sounding choice. 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 catch: 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 $321 saving on the ELAC Uni-Fi 2.0 UB52 is not enough to make up the difference.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| ELAC Uni-Fi 2.0 UB52 | Moondrop M4P MTM | |
|---|---|---|
| Price | $599.00 per pair | $920 per pair |
| Ranked | #130 of 160 in Medium Size Bookshelf Speakers | #14 of 160 in Medium Size Bookshelf Speakers |
| Crossover Frequency | 200Hz / 2000Hz | 1800Hz |
| Dimensions | 13.6”H x 7.3”W x 10.8”D (346 x 185 x 275 mm) | 15”H x 6.1”W x 7.3”D (380 x 155 x 185 mm) |
| Impedance | 6 ohms | 4 ohms nominal, 3.7 ohms minimum (measured above 80Hz, Erin’s Audio Corner) |
| Sensitivity | 83.3dB (measured by Audio Science Review; 85dB manufacturer specified) | 85dB (measured average 300Hz-3kHz @ 2.83V/1m, Erin’s Audio Corner) |
| Drivers | 5.25” aluminum woofer, 4” aluminum midrange, 1” soft dome tweeter | 2x 4” (87mm) carbon cone woofer, 1” (25mm) aluminum/magnesium dome tweeter |
| Power Handling | 140W max | 75W rated / 150W max |
| Woofer Cabinet | ported | ported |
| Weight | 7.7 lbs (3.5 kg) | 13.7 lbs (6.2 kg) each |
| Bass Extension (-3dB) | 55.7Hz (measured, Audio Science Review) | 69Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 38.6Hz (measured, Audio Science Review) | 46Hz (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.32 (spinorama.org) | 5.05 |
| Spinorama Preference Score with Perfect Sub | 7.34 (spinorama.org) | 7.59 |
| DIY Kit | No | No |
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
Prices on this page were last checked October 9, 2026 at 8:01 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
ELAC Uni-Fi 2.0 UB52: $599.00 per pair Amazon eBay
Same family: the ELAC Uni-Fi 2.0 UF52 (floorstanding, estimated 4.2/5) and the ELAC Uni-Fi 2.0 UC52 (center, rated 3.9/5).
Pros: Wide, smooth horizontal directivity: beamwidth holds to about ±60 degrees up to 8kHz before narrowing. Vertical directivity is substantially better than average, giving more listening-height leeway than most two-way bookshelf speakers. Measured bass extension of 55.7Hz (-3dB), with a measured sensitivity of 83.3dB.
Cons: Dipped 3db from 1.5-3kHz. On-axis response shelves down above 1.5kHz along with multiple resonances, leading the reviewer to predict it will “likely sound dull.” Nasty resonance at 600Hz: audible as an actual buzzing artifact on some recordings (the reviewer demonstrated it with an Eva Cassidy track), and it shows up as a sharp distortion spike exceeding 4% at 585Hz when driven to 96dB SPL/1m. Not recommended.
Full ELAC Uni-Fi 2.0 UB52 review and specifications →
| Bass Extension (-10dB) | 38.6Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 55.7Hz (measured, Audio Science Review) |
| Crossover Frequency | 200Hz / 2000Hz |
| DIY Kit | No |
| Dimensions | 13.6”H x 7.3”W x 10.8”D (346 x 185 x 275 mm) |
| Drivers | 5.25” aluminum woofer, 4” aluminum midrange, 1” soft dome tweeter |
| Impedance | 6 ohms |
| Power Handling | 140W max |
| Sensitivity | 83.3dB (measured by Audio Science Review; 85dB manufacturer specified) |
| Spinorama Preference Score | 5.32 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.34 (spinorama.org) |
| Weight | 7.7 lbs (3.5 kg) |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- ELAC Uni-Fi 2.0 UB52 vs KEF Q100
- ELAC Uni-Fi 2.0 UB52 vs JBL Stage A120
- ELAC Uni-Fi 2.0 UB52 vs Q Acoustics 3020i
- ELAC Uni-Fi 2.0 UB52 vs Micca RB42
- ELAC Uni-Fi 2.0 UB52 vs Q Acoustics 5020
- ELAC Uni-Fi 2.0 UB52 vs JBL L52 Classic
- ELAC Uni-Fi 2.0 UB52 vs JBL Stage A130
- ELAC Uni-Fi 2.0 UB52 vs Fluance Signature HFS
- See all 41 comparisons
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