Short answer: the Revel Performa4 M145. It ranks #13 of 168 bookshelf speakers by sound quality, rated 4.3/5, at $1,999.95. The Amphion Argon1 ranks #41, rated 3.8/5, at $1,919, $80.95 cheaper, a saving that is not big enough to make up the sound-quality gap.
The Revel Performa4 M145 is the better-sounding choice. The smaller standmount in Revel’s 2026 Performa4 series. Watch for: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Revel M105.
Why pick the Amphion Argon1: A well-regarded Finnish audiophile design praised by What Hi-Fi?, HomeTheaterReview, Audiophilia and The Ear for reference-quality midrange and surprisingly deep bass for its size. The catch: The independent measurement tells a rougher story than the reviews suggest: on-axis deviation of 0.896dB and on-axis smoothness of just 0.154, with a moderate -0.11dB per octave downward tilt, consistent with a deliberately voiced rather than neutral-flat tuning.
Buy the Revel Performa4 M145. It is rated higher for sound quality, and the $80.95 you would save on the Amphion Argon1 does not close the gap.
About the ratings: the Revel Performa4 M145’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 3.9 to 4.6, so this verdict could change once it is measured.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Revel Performa4 M145 | Amphion Argon1 | |
|---|---|---|
| Price | $1,999.95 per pair | $1,919 per pair |
| Ranked | #13 of 168 in Medium Size Bookshelf Speakers Estimated | #41 of 168 in Medium Size Bookshelf Speakers |
| Drivers | 1” (25mm) Deep Ceramic Composite dome tweeter in Acoustic Lens waveguide, 5.25” (130mm) Micro Ceramic Composite woofer | 1” titanium dome tweeter, 5.25” aluminum woofer |
| Frequency Response | 54Hz - 40kHz ±6dB (manufacturer specified) | 45-25,000Hz (-6dB) |
| Sensitivity | 85dB (2.83V/1m, manufacturer specified) | 86dB |
| Impedance | 6 ohms nominal (manufacturer specified) | 8 ohms |
| Crossover Frequency | 1.8kHz | - |
| Woofer Cabinet | ported, rear | - |
| Dimensions | 11.6”H x 7.9”W x 9.6”D (294 x 200 x 245 mm) | 12.4”H x 6.3”W x 10.4”D (316 x 160 x 265 mm) |
| Weight | 15 lbs (6.8 kg) each | 15.4 lbs (7 kg) each |
| DIY Kit | No | No |
| Enclosure | - | 2-way, ported |
| Country | - | Finland |
| Spinorama Preference Score | - | 4.79 |
| Spinorama Preference Score with Perfect Sub | - | 7.01 |
| Bass Extension (-3dB) | - | 55.3Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | - | 41.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
Related Speaker Comparisons
How Revel Performa4 M145 compares with other leading options:
- KEF LS50 Meta vs Revel Performa4 M145
- Revel Performa4 M145 vs Wharfedale Aura 1
- KEF LS50 Meta vs Amphion Argon1
- Amphion Argon1 vs Tekton Troubadour
- KEF Q150 vs Amphion Argon1
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Revel Performa4 M145: $1,999.95 per pair Estimated Audio Advice eBay
Older model: the Revel M105 (ranked lower, rated 4.2/5). See every Revel Performa generation.
Same family: the Revel Performa4 M146 (larger bookshelf, estimated 4.5/5), the Revel Performa4 F345 (smaller floorstanding, estimated 4.4/5), the Revel Performa4 F346 (larger floorstanding, estimated 4.5/5) and the Revel Performa4 C245 (center, estimated 4/5).
Pros: The smaller standmount in Revel’s 2026 Performa4 series. A 1” ceramic composite dome tweeter sits in Revel’s seventh generation Acoustic Lens waveguide, which controls dispersion so the off-axis sound stays close to the on-axis balance, above a 5.25” ceramic composite woofer crossed over at 1.8kHz. The measured Revel M105 it replaces scored a 5.76 Spinorama preference score, one of the best results for a speaker this size.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Revel M105. Sensitivity is a low 85dB and the bass is rated only to 54Hz (-6dB), so it needs a reasonably powerful amplifier and a subwoofer for full-range music or movies.
Full Revel Performa4 M145 review and specifications →
| Released | Apr 2026 (6 months ago) |
|---|---|
| Crossover Frequency | 1.8kHz |
| DIY Kit | No |
| Dimensions | 11.6”H x 7.9”W x 9.6”D (294 x 200 x 245 mm) |
| Drivers | 1” (25mm) Deep Ceramic Composite dome tweeter in Acoustic Lens waveguide, 5.25” (130mm) Micro Ceramic Composite woofer |
| Frequency Response | 54Hz - 40kHz ±6dB (manufacturer specified) |
| Impedance | 6 ohms nominal (manufacturer specified) |
| Sensitivity | 85dB (2.83V/1m, manufacturer specified) |
| Weight | 15 lbs (6.8 kg) each |
| Woofer Cabinet | ported, rear |
- 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
Amphion Argon1: $1,919 per pair Amphion eBay
Pros: A well-regarded Finnish audiophile design praised by What Hi-Fi?, HomeTheaterReview, Audiophilia and The Ear for reference-quality midrange and surprisingly deep bass for its size. Compact at 7kg and 316mm tall, with a titanium tweeter and aluminum woofer in a two-way ported cabinet. Measured bass extension of 55.3Hz (-3dB).
Cons: The independent measurement tells a rougher story than the reviews suggest: on-axis deviation of 0.896dB and on-axis smoothness of just 0.154, with a moderate -0.11dB per octave downward tilt, consistent with a deliberately voiced rather than neutral-flat tuning. Directivity-index standard deviation of 3.33 and predicted in-room smoothness of 0.29 are both unremarkable, though a well-damped bass-alignment Q of 0.24, the tightest measured here, suggests a controlled low-end rolloff.
Full Amphion Argon1 review and specifications →
| Bass Extension (-10dB) | 41.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 55.3Hz (measured, spinorama.org) |
| Country | Finland |
| DIY Kit | No |
| Dimensions | 12.4”H x 6.3”W x 10.4”D (316 x 160 x 265 mm) |
| Drivers | 1” titanium dome tweeter, 5.25” aluminum woofer |
| Enclosure | 2-way, ported |
| Frequency Response | 45-25,000Hz (-6dB) |
| Impedance | 8 ohms |
| Sensitivity | 86dB |
| Spinorama Preference Score | 4.79 |
| Spinorama Preference Score with Perfect Sub | 7.01 |
| Weight | 15.4 lbs (7 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons