Short answer: the Perlisten A3m on measured sound quality, the Triangle Borea BR03 on price. The Perlisten A3m ranks #43 of 130 bookshelf speakers at $3000. The Triangle Borea BR03 ranks #109 at $399, $2601 cheaper.
What the Triangle Borea BR03 offers: Bass output is genuinely decent for the price - measured extension reaches F3 57Hz/F10 42Hz, which the reviewer had no real complaints about. Dual front-firing ports and a well-stuffed, well-braced cabinet. Solid build quality overall. Watch for: A noticeable mid-range suckout, most pronounced in the upper mid-range/lower treble, that the reviewer attributes to cabinet resonances and driver breakup rather than a deliberate voicing choice - it makes vocals and instruments sound recessed and thin rather than warm. Sibilance in the 4-8kHz region shows up on every track the reviewer tried. Measured minimum impedance dips to about 4.2 ohms (with an even lower EPDR), despite the speaker and its own rear panel being labeled 8 ohms - worth knowing if you’re planning to drive these with a receiver/AVR that assumes an 8-ohm nominal load. The reviewer is upfront that this speaker has a devoted following among other reviewers, but says he specifically doesn’t hear what they hear and wants people who own it to trust their own ears rather than assume something’s wrong with their hearing if they don’t love it either.
What the Perlisten A3m offers: Manufacturer data shows a narrow 1.8dB reference band, 0.305dB on-axis average absolute deviation, 0.457 listening-window smoothness, and a rated 111.4dB peak at 1m. Its preference score rises from 3.39 to 6.42 with a subwoofer. A sealed cabinet, two 8-inch carbon-fiber woofers, and a controlled tweeter waveguide make this a high-output monitor. Watch for: The low-quality vendor Spinorama data measures only 85.8Hz at -3dB, 74.1Hz at -6dB, and 55.7Hz at -12dB, conflicting with Perlisten’s much deeper in-room extension claim. A 3.70 sound-power directivity-index standard deviation and 0.295 predicted-in-room smoothness are merely average. It is large, heavy, 4-ohm nominal, and expensive at $3,000/pair.
Buy the Triangle Borea BR03 if the price matters more than sound quality. Buy the Perlisten A3m if sound quality matters more than the price.
If sound quality matters at all to you, skip the Triangle Borea BR03. It ranks near the bottom of the 130 bookshelf speakers, so look higher up the list instead.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Triangle Borea BR03 | Perlisten A3m | |
|---|---|---|
| Price | $399.00 per pair | $3,000 per pair |
| Ranked | #109 of 130 in Large Size Bookshelf Speakers | #43 of 130 in Large Size Bookshelf Speakers |
| Drivers | 6.5" natural cellulose midwoofer, 1" (25mm) EFS silk dome tweeter | Two 8-inch carbon-fiber woofers; 35mm Teteron dome tweeter |
| Crossover Frequency | 3600Hz | - |
| Dimensions | 14.96"H x 8.11"W x 12.36"D | 26.6 x 11.0 x 13.8 in each |
| Weight | 13.2 lbs (6 kg) each | - |
| Impedance | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin's Audio Corner) | 4 ohms nominal; 3 ohms minimum |
| Sensitivity | 87.5dB (measured at 2.83V/1m, Erin's Audio Corner) | 87.4dB at 2.83V/1m |
| Bass Extension (-3dB) | 57Hz (measured, Erin's Audio Corner) | 85.8Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 42Hz (measured, Erin's Audio Corner) | approximately 61Hz (measured, spinorama.org) |
| Recommended Power | 100W | - |
| Woofer Cabinet | ported, dual front ports | - |
| Spinorama Preference Score | 3.12 | 3.39 |
| Spinorama Preference Score with Perfect Sub | 5.47 | 6.42 |
| Enclosure | - | Sealed |
| Maximum SPL | - | 111.4dB peak at 1m (manufacturer specified) |
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Prices on this page were last checked September 16, 2026 at 12:41 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
Triangle Borea BR03: $399.00 per pair Amazon eBay
Pros: Bass output is genuinely decent for the price - measured extension reaches F3 57Hz/F10 42Hz, which the reviewer had no real complaints about. Dual front-firing ports and a well-stuffed, well-braced cabinet. Solid build quality overall. Measured bass extension of 57Hz (-3dB), with a measured sensitivity of 87.5dB.
Cons: A noticeable mid-range suckout, most pronounced in the upper mid-range/lower treble, that the reviewer attributes to cabinet resonances and driver breakup rather than a deliberate voicing choice - it makes vocals and instruments sound recessed and thin rather than warm. Sibilance in the 4-8kHz region shows up on every track the reviewer tried. Measured minimum impedance dips to about 4.2 ohms (with an even lower EPDR), despite the speaker and its own rear panel being labeled 8 ohms - worth knowing if you’re planning to drive these with a receiver/AVR that assumes an 8-ohm nominal load. The reviewer is upfront that this speaker has a devoted following among other reviewers, but says he specifically doesn’t hear what they hear and wants people who own it to trust their own ears rather than assume something’s wrong with their hearing if they don’t love it either.
Full Triangle Borea BR03 review and specifications →
| Bass Extension (-10dB) | 42Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 57Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 3600Hz |
| Dimensions | 14.96"H x 8.11"W x 12.36"D |
| Drivers | 6.5" natural cellulose midwoofer, 1" (25mm) EFS silk dome tweeter |
| Impedance | 8 ohms nominal (manufacturer spec), 4.2 ohms minimum (measured, Erin's Audio Corner) |
| Recommended Power | 100W |
| Sensitivity | 87.5dB (measured at 2.83V/1m, Erin's Audio Corner) |
| Spinorama Preference Score | 3.12 |
| Spinorama Preference Score with Perfect Sub | 5.47 |
| Weight | 13.2 lbs (6 kg) each |
| Woofer Cabinet | ported, dual front ports |
- Links
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Perlisten A3m: $3,000 per pair Perlisten Dealer Network eBay
Pros: Manufacturer data shows a narrow 1.8dB reference band, 0.305dB on-axis average absolute deviation, 0.457 listening-window smoothness, and a rated 111.4dB peak at 1m. Its preference score rises from 3.39 to 6.42 with a subwoofer. A sealed cabinet, two 8-inch carbon-fiber woofers, and a controlled tweeter waveguide make this a high-output monitor. Measured bass extension of 85.8Hz (-3dB).
Cons: The low-quality vendor Spinorama data measures only 85.8Hz at -3dB, 74.1Hz at -6dB, and 55.7Hz at -12dB, conflicting with Perlisten’s much deeper in-room extension claim. A 3.70 sound-power directivity-index standard deviation and 0.295 predicted-in-room smoothness are merely average. It is large, heavy, 4-ohm nominal, and expensive at $3,000/pair.
Full Perlisten A3m review and specifications →
| Bass Extension (-10dB) | approximately 61Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 85.8Hz (measured, spinorama.org) |
| Dimensions | 26.6 x 11.0 x 13.8 in each |
| Drivers | Two 8-inch carbon-fiber woofers; 35mm Teteron dome tweeter |
| Enclosure | Sealed |
| Impedance | 4 ohms nominal; 3 ohms minimum |
| Maximum SPL | 111.4dB peak at 1m (manufacturer specified) |
| Sensitivity | 87.4dB at 2.83V/1m |
| Spinorama Preference Score | 3.39 |
| Spinorama Preference Score with Perfect Sub | 6.42 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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