Short answer: the Buchardt Audio E50 on measured sound quality, the Philharmonic BMR (v1) on price. The Buchardt Audio E50 ranks #16 of 130 bookshelf speakers at $4600. The Philharmonic BMR (v1) ranks #36 at $2200, $2400 cheaper.
What the Buchardt Audio E50 offers: Exceptional bass extension for a bookshelf - F3 at 40Hz, F10 at 34Hz - with genuinely low-end weight the reviewer kept noticing track after track, not just a single room-boosted note. Mid and lower-midrange are very neutral with no coloration and well-executed baffle-step compensation, so it doesn’t need to sit close to a wall like many bookshelf designs. Low distortion throughout the midrange, controlled ~60-degree horizontal directivity, and a striking driver/waveguide integration that looks genuinely upscale. Watch for: A roughly 3dB dip in the upper midrange/lower treble softens attack and dialogue clarity - the reviewer’s main complaint, and it’s baked into the crossover rather than a directivity artifact, so it’s audible both on and off axis. Sounds too bright pointed directly at the listener; needs about 10-20 degrees of toe-out to tame the treble and slightly smooth (not eliminate) that dip. Below-average sensitivity (measured 83.1dB vs 85dB spec) calls for a beefier amp, and the speaker’s tonal balance is unusually sensitive to amplifier output impedance - a poor tube amp can shift the midrange by up to 2dB.
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 Buchardt Audio E50 if sound quality matters more than the price. Buy the Philharmonic BMR (v1) if the price matters more than sound quality.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Buchardt Audio E50 | Philharmonic BMR (v1) | |
|---|---|---|
| Price | $4600 per pair | $2,395 per pair |
| Ranked | #16 of 130 in Large Size Bookshelf Speakers | #36 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 34Hz (measured, Erin's Audio Corner) | 37.8Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 40Hz (measured, Erin's Audio Corner) | Approximately 62Hz relative to mean (measured, Erin's Audio Corner website) |
| Dimensions | 15.6" x 7.5" x 11.2" (395 x 190 x 284 mm) | - |
| Impedance | 4 ohms nominal | Approximately 4 ohms nominal (measured, Erin's Audio Corner) |
| Sensitivity | 83.1dB (2.83V/1m, measured by Erin's Audio Corner) | Approximately 83dB/2.83V/1m (measured, Erin's Audio Corner) |
| Drivers | 1" Scanspeak dome tweeter with waveguide, 6.5" Purifi extended-stroke woofer, dual 6.5" passive radiators | RAAL 64-10 ribbon; 2.5" BMR midrange; 7" Scan-Speak woofer |
| Weight | 19 lbs (8.6 kg) each | - |
| Woofer Cabinet | Passive radiator loaded | ported |
| Crossover Frequency | 2000Hz | - |
| Frequency Response | 36Hz - 30kHz ±3dB (Manufacturer specified) | - |
| Recommended Power | 60W - 200W | - |
| Country | Denmark | - |
| Spinorama Preference Score | 5.03 | 5.24 |
| Spinorama Preference Score with Perfect Sub | 6.80 | 6.90 |
| Port Tuning | - | Mid/low-30Hz range (measured, Erin's Audio Corner) |
Related Speaker Comparisons
How Buchardt Audio E50 compares with other leading options:
- Buchardt Audio E50 vs Perlisten S4b
- KEF Reference 1 Meta vs Buchardt Audio E50
- Buchardt Audio E50 vs GR-Research NX-Studio
- March Audio Sointuva vs Buchardt Audio E50
- AsciLab C6B vs Buchardt Audio E50
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Buchardt Audio E50: $4600 per pair Buchardt Audio eBay
Pros: Exceptional bass extension for a bookshelf - F3 at 40Hz, F10 at 34Hz - with genuinely low-end weight the reviewer kept noticing track after track, not just a single room-boosted note. Mid and lower-midrange are very neutral with no coloration and well-executed baffle-step compensation, so it doesn’t need to sit close to a wall like many bookshelf designs. Low distortion throughout the midrange, controlled ~60-degree horizontal directivity, and a striking driver/waveguide integration that looks genuinely upscale. Measured bass extension of 40Hz (-3dB), with a measured sensitivity of 83.1dB.
Cons: A roughly 3dB dip in the upper midrange/lower treble softens attack and dialogue clarity - the reviewer’s main complaint, and it’s baked into the crossover rather than a directivity artifact, so it’s audible both on and off axis. Sounds too bright pointed directly at the listener; needs about 10-20 degrees of toe-out to tame the treble and slightly smooth (not eliminate) that dip. Below-average sensitivity (measured 83.1dB vs 85dB spec) calls for a beefier amp, and the speaker’s tonal balance is unusually sensitive to amplifier output impedance - a poor tube amp can shift the midrange by up to 2dB.
Full Buchardt Audio E50 review and specifications →
| Bass Extension (-10dB) | 34Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 40Hz (measured, Erin's Audio Corner) |
| Country | Denmark |
| Crossover Frequency | 2000Hz |
| Dimensions | 15.6" x 7.5" x 11.2" (395 x 190 x 284 mm) |
| Drivers | 1" Scanspeak dome tweeter with waveguide, 6.5" Purifi extended-stroke woofer, dual 6.5" passive radiators |
| Frequency Response | 36Hz - 30kHz ±3dB (Manufacturer specified) |
| Impedance | 4 ohms nominal |
| Recommended Power | 60W - 200W |
| Sensitivity | 83.1dB (2.83V/1m, measured by Erin's Audio Corner) |
| Spinorama Preference Score | 5.03 |
| Spinorama Preference Score with Perfect Sub | 6.80 |
| Weight | 19 lbs (8.6 kg) each |
| Woofer Cabinet | Passive radiator loaded |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Buchardt Audio E50 vs KEF R3
- Buchardt Audio E50 vs MoFi SourcePoint 8
- Buchardt Audio E50 vs Wharfedale Aura 2
- Buchardt Audio E50 vs AsciLab F6Bs
- Buchardt Audio E50 vs KEF Q Concerto Meta
- Buchardt Audio E50 vs Arendal 1528 Monitor 8
- Buchardt Audio E50 vs KEF R3 Meta
- Buchardt Audio E50 vs Ascend Acoustics CMT-340 SE2
- See all 45 comparisons
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Philharmonic BMR (v1) vs ELAC VELA BS 403
- Philharmonic BMR (v1) vs Selah Audio Integrity
- Philharmonic BMR (v1) vs Ascend Acoustics Sierra-2EX V2
- Philharmonic BMR (v1) vs Ascend Acoustics Sierra-LX
- Philharmonic BMR (v1) vs Wharfedale Linton 85
- Philharmonic BMR (v1) vs Emotiva Airmotiv XB2
- Philharmonic BMR (v1) vs ELAC Debut 3.0 DB63
- Philharmonic BMR (v1) vs Selah Audio Purezza
- See all 49 comparisons