Short answer: the Technics SB-C700 for point-source geometry, the ELAC UBR62 for a true three-way layout. The Technics mounts a 1.9cm dome tweeter at the acoustic center of a 16cm flat carbon-fiber/honeycomb woofer, giving true point-source alignment, though its 85dB sensitivity and 4-ohm nominal impedance want a capable amplifier. The UBR62 uses a concentric 4-inch midrange and a dedicated 6.5-inch aluminum woofer, but Erin measured only 83dB/2.83V/1m.
Buy the ELAC Uni-Fi Reference UBR62. It is rated higher for sound quality than the Technics SB-C700 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| ELAC Uni-Fi Reference UBR62 | Technics SB-C700 | |
|---|---|---|
| Price | $1,199 per pair | $1,699.00 per pair |
| Ranked | #56 of 141 in Large Size Bookshelf Speakers | #64 of 141 in Large Size Bookshelf Speakers |
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom | - |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) | 85.0Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) | 40.5Hz (measured, spinorama.org) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) | 85dB (2.83V/1m) |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) | 4 ohms |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer | Coaxial “Phase Precision Driver”: 1.9cm dome tweeter + 16cm flat-diaphragm woofer |
| Dimensions | 14.1”H x 8.2”W x 13.1”D | 8.7” x 13.2” x 11.3” (220 x 336 x 286 mm) each |
| Woofer Cabinet | ported, dual front slot vents | Bass reflex |
| Weight | 23.5 lbs (10.68 kg) each | 18.7 lbs (8.5 kg) each |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) | 5.11 |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) | 7.25 |
| DIY Kit | No | No |
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The Two Speakers In Full
ELAC Uni-Fi Reference UBR62: $1,199 per pair Amazon eBay
Pros: True three-way stand-mount using a 1-inch tweeter concentrically mounted in a 4-inch aluminum midrange plus a dedicated 6.5-inch aluminum woofer. Erin found the directivity and overall tonality well controlled, with dual front slot vents minimizing placement sensitivity and cabinet bracing suppressing obvious coloration. The mostly 5-ohm-or-higher load is manageable for a genuinely 4-ohm-capable amplifier, and the coherent concentric upper range supports stable imaging across seats. Measured bass extension of 58.6Hz (-3dB), with a measured sensitivity of 83dB.
Cons: Erin measured very low 83dB/2.83V/1m sensitivity; his 110W Parasound was insufficient for the high-level test and the more powerful HINT 6 was needed. Impedance reaches 4 ohms near 50Hz (Erin), while woofer excursion and bass output were less capable than expected for the cabinet size. A broad 500-700Hz rise and associated lower/female-vocal coloration were audible, and the slightly subdued listening-window treble is necessary to avoid an overly bright in-room balance rather than evidence of ruler-flat axial tuning.
Full ELAC Uni-Fi Reference UBR62 review and specifications →
| Bass Extension | 41Hz manufacturer specified; Erin’s response-linearity graph shows limited high-output bass headroom |
|---|---|
| Bass Extension (-10dB) | 41.9Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 58.6Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.1”H x 8.2”W x 13.1”D |
| Drivers | 1” tweeter coaxial with 4” midrange; 6.5” woofer |
| Impedance | 4 ohms minimum near 50Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 83dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.44 (measured, spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.7 (measured, spinorama.org) |
| Weight | 23.5 lbs (10.68 kg) each |
| Woofer Cabinet | ported, dual front slot vents |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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Technics SB-C700: $1,699.00 per pair Value Electronics USA Tube Audio eBay
Pros: Distinctive coincident “Phase Precision Driver”: a 1.9cm dome tweeter mounted at the exact acoustic center of a 16cm flat-diaphragm carbon-fiber/honeycomb-sandwich woofer, giving true point-source geometry. Directivity is unusually symmetric front-to-back and top-to-bottom (both horizontal and vertical average exactly 60°) and off axis sound tracks the on axis response unusually consistently for a large bookshelf speaker. Die-cast aluminum chassis and a high-gloss convex “Entasis form” cabinet with side panels up to 42mm thick for extra rigidity. Measured bass extension of 85.0Hz (-3dB).
Cons: 85dB sensitivity paired with a 4-ohm nominal impedance wants a fairly capable amplifier. Bass extension is shallow relative to its 6.5”-class woofer at -3dB (85.0Hz), though it reaches a more usable 40.5Hz at -10dB: a fairly steep low-end rolloff shape once past the reference band. At $1699/pair, some in the ASR community have questioned the value proposition against similarly-measuring alternatives at lower prices.
Full Technics SB-C700 review and specifications →
| Bass Extension (-10dB) | 40.5Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 85.0Hz (measured, spinorama.org) |
| DIY Kit | No |
| Dimensions | 8.7” x 13.2” x 11.3” (220 x 336 x 286 mm) each |
| Drivers | Coaxial “Phase Precision Driver”: 1.9cm dome tweeter + 16cm flat-diaphragm woofer |
| Impedance | 4 ohms |
| Sensitivity | 85dB (2.83V/1m) |
| Spinorama Preference Score | 5.11 |
| Spinorama Preference Score with Perfect Sub | 7.25 |
| Weight | 18.7 lbs (8.5 kg) each |
| Woofer Cabinet | Bass reflex |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Technics SB-C700 vs Definitive Technology Demand D11
- Technics SB-C700 vs Dynaudio Contour 20i
- Technics SB-C700 vs Yamaha NS-800A
- Technics SB-C700 vs ELAC DBR62
- Technics SB-C700 vs Revel Concerta2 M16
- Technics SB-C700 vs Klipsch RP-600M II
- Technics SB-C700 vs Dynaudio Emit 20
- Technics SB-C700 vs JBL HDI-1600
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