Short answer: the AsciLab F6Bs. It ranks #20 of 130 bookshelf speakers by sound quality at $799; the Philharmonic BMR (v1) ranks #36 and costs $2200, which makes this an easy call rather than a real tradeoff.
What the AsciLab F6Bs offers: A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. The sound power directivity index has the tightest standard deviation, 3.32, of anything in this batch of new additions, meaning off axis energy tracks the on axis response unusually consistently for a sealed 2-way this size, and on axis deviation measures a clean 0.25dB average. Watch for: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio. Bass extension is measured at 82.0Hz at -3dB, noticeably less than the passive radiator equipped F6B, and listening window smoothness measures only a moderate 0.39. The 4 ohm nominal impedance calls for a reasonably capable amplifier.
What the Philharmonic BMR (v1) offers: Large three-way combining a Scan-Speak 7-inch paper/carbon woofer, 2.5-inch Tectonic balanced-mode midrange and RAAL 64-10 ribbon. Erin measured approximately +/-1.5dB linearity from 80Hz upward, very broad +/-40-degree-or-better horizontal coverage and about 83dB/2.83V/1m sensitivity. The port is tuned in the mid/low-30Hz region without audible chuffing, the midrange provides unusually expansive staging, and distortion remained subjectively unobtrusive. Watch for: The measured 83dB sensitivity and roughly 4-ohm load demand meaningful external amplification. A 1-2dB shelf below about 300Hz reduces warmth unless corrected, while a response/impedance feature near 250-300Hz corresponded with Erin’s sense of resonance. The ribbon produces narrower vertical than horizontal radiation, and second-order high-frequency distortion plus dynamic enhancement near 3kHz appeared in testing. This was an earlier cabinet/version, not the current v2.
Buy the AsciLab F6Bs. It ranks higher for sound quality than the Philharmonic BMR (v1) and costs less, so there is no real case for the other one.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| AsciLab F6Bs | Philharmonic BMR (v1) | |
|---|---|---|
| Price | €799 per pair | $2,395 per pair |
| Ranked | #20 of 130 in Large Size Bookshelf Speakers | #36 of 130 in Large Size Bookshelf Speakers |
| Enclosure | sealed | - |
| Drivers | 1" aluminum dome tweeter with waveguide and phase plug, 6" fiber cone woofer | RAAL 64-10 ribbon; 2.5" BMR midrange; 7" Scan-Speak woofer |
| Dimensions | 14.5"H x 8"W x 6.1"D (368 x 203 x 154 mm) | - |
| Weight | 12.3 lbs (5.6 kg) each | - |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) | Approximately 83dB/2.83V/1m (measured, Erin's Audio Corner) |
| Impedance | 4 ohms nominal, 3.7 ohms minimum | Approximately 4 ohms nominal (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) | Approximately 62Hz relative to mean (measured, Erin's Audio Corner website) |
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) | 37.8Hz (measured, Erin's Audio Corner) |
| Crossover Frequency | 1kHz | - |
| Mounting | VESA 100 wall mount compatible | - |
| Warranty | 2 years | - |
| Country | South Korea | - |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) | - |
| Spinorama Preference Score | 4.35 | 5.24 |
| Spinorama Preference Score with Perfect Sub | 7.01 | 6.90 |
| Port Tuning | - | Mid/low-30Hz range (measured, Erin's Audio Corner) |
| Woofer Cabinet | - | ported |
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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
AsciLab F6Bs: €799 per pair Audiophonics eBay
Pros: A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. The sound power directivity index has the tightest standard deviation, 3.32, of anything in this batch of new additions, meaning off axis energy tracks the on axis response unusually consistently for a sealed 2-way this size, and on axis deviation measures a clean 0.25dB average. Measured bass extension of 82.0Hz (-3dB), with a measured sensitivity of 85.2dB.
Cons: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio. Bass extension is measured at 82.0Hz at -3dB, noticeably less than the passive radiator equipped F6B, and listening window smoothness measures only a moderate 0.39. The 4 ohm nominal impedance calls for a reasonably capable amplifier.
Full AsciLab F6Bs review and specifications →
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) |
| Country | South Korea |
| Crossover Frequency | 1kHz |
| Dimensions | 14.5"H x 8"W x 6.1"D (368 x 203 x 154 mm) |
| Drivers | 1" aluminum dome tweeter with waveguide and phase plug, 6" fiber cone woofer |
| Enclosure | sealed |
| Impedance | 4 ohms nominal, 3.7 ohms minimum |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) |
| Mounting | VESA 100 wall mount compatible |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) |
| Spinorama Preference Score | 4.35 |
| Spinorama Preference Score with Perfect Sub | 7.01 |
| Warranty | 2 years |
| Weight | 12.3 lbs (5.6 kg) each |
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Philharmonic BMR (v1): $2,395 per pair Philharmonic Audio eBay
Pros: Large three-way combining a Scan-Speak 7-inch paper/carbon woofer, 2.5-inch Tectonic balanced-mode midrange and RAAL 64-10 ribbon. Erin measured approximately +/-1.5dB linearity from 80Hz upward, very broad +/-40-degree-or-better horizontal coverage and about 83dB/2.83V/1m sensitivity. The port is tuned in the mid/low-30Hz region without audible chuffing, the midrange provides unusually expansive staging, and distortion remained subjectively unobtrusive. Measured bass extension of 62Hz (-3dB), with a measured sensitivity of 83dB.
Cons: The measured 83dB sensitivity and roughly 4-ohm load demand meaningful external amplification. A 1-2dB shelf below about 300Hz reduces warmth unless corrected, while a response/impedance feature near 250-300Hz corresponded with Erin’s sense of resonance. The ribbon produces narrower vertical than horizontal radiation, and second-order high-frequency distortion plus dynamic enhancement near 3kHz appeared in testing. This was an earlier cabinet/version, not the current v2.
Full Philharmonic BMR (v1) review and specifications →
| Bass Extension (-10dB) | 37.8Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | Approximately 62Hz relative to mean (measured, Erin's Audio Corner website) |
| Drivers | RAAL 64-10 ribbon; 2.5" BMR midrange; 7" Scan-Speak woofer |
| Impedance | Approximately 4 ohms nominal (measured, Erin's Audio Corner) |
| Port Tuning | Mid/low-30Hz range (measured, Erin's Audio Corner) |
| Sensitivity | Approximately 83dB/2.83V/1m (measured, Erin's Audio Corner) |
| Spinorama Preference Score | 5.24 |
| Spinorama Preference Score with Perfect Sub | 6.90 |
| Woofer Cabinet | ported |
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- Reviews, Comparisons and Sound Samples
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