ELAC Uni-Fi Reference UBR62 vs Technics SB-C700

Last updated: August 19, 2026

Short answer: the ELAC Uni-Fi Reference UBR62. It ranks #45 of 105 bookshelf speakers by sound quality at $1199; the Technics SB-C700 ranks #49 and costs $1699, so there is not much of a tradeoff to weigh.

What the ELAC Uni-Fi Reference UBR62 gets right: 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. Watch for: 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.

What the Technics SB-C700 offers: 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. The tradeoff: 85dB sensitivity paired with a 4-ohm nominal impedance wants a fairly capable amplifier.

Buy the ELAC Uni-Fi Reference UBR62. It ranks higher for sound quality than the Technics SB-C700 and costs less, so there is no real case for the other one.

ELAC Uni-Fi Reference UBR62 vs Technics SB-C700

Specifications Side By Side

ELAC Uni-Fi Reference UBR62 Technics SB-C700
Price$1,199/pair$1,699.00
Ranked#45 of 105 in Large Size Bookshelf Speakers#49 of 105 in Large Size Bookshelf Speakers
Bass Extension41Hz 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)
Sensitivity83dB/2.83V/1m (measured, Erin’s Audio Corner)85dB (2.83V/1m)
Impedance4 ohms minimum near 50Hz (measured, Erin’s Audio Corner)4 ohms
Drivers1" tweeter coaxial with 4" midrange; 6.5" wooferCoaxial "Phase Precision Driver": 1.9cm dome tweeter + 16cm flat-diaphragm woofer
Dimensions14.1"H x 8.2"W x 13.1"D8.7" x 13.2" x 11.3" (220 x 336 x 286 mm) (8.7 x 13.2 x 11.3 in) each
Woofer Cabinetported, dual front slot ventsBass reflex
Weight-18.7 lbs / 8.5 kg (18.7 lb) each

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

ELAC Uni-Fi Reference UBR62: $1,199/pair Amazon

ELAC Uni-Fi Reference UBR62 ranking card

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.

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.

Bass Extension41Hz 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)
Dimensions14.1"H x 8.2"W x 13.1"D
Drivers1" tweeter coaxial with 4" midrange; 6.5" woofer
Impedance4 ohms minimum near 50Hz (measured, Erin's Audio Corner)
Sensitivity83dB/2.83V/1m (measured, Erin's Audio Corner)
Woofer Cabinetported, dual front slot vents

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Technics SB-C700: $1,699.00 Value Electronics USA Tube Audio

Technics SB-C700 ranking card

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 spdi_stddev (3.09) is tight for the passive-large tier. Die-cast aluminum chassis and a high-gloss convex “Entasis form” cabinet with side panels up to 42mm thick for extra rigidity.

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 $1,699.99/pair, some in the ASR community have questioned the value proposition against similarly-measuring alternatives at lower prices.

Bass Extension (-10dB)40.5Hz (measured, spinorama.org)
Bass Extension (-3dB)85.0Hz (measured, spinorama.org)
Dimensions8.7" x 13.2" x 11.3" (220 x 336 x 286 mm) (8.7 x 13.2 x 11.3 in) each
DriversCoaxial "Phase Precision Driver": 1.9cm dome tweeter + 16cm flat-diaphragm woofer
Impedance4 ohms
Sensitivity85dB (2.83V/1m)
Weight18.7 lbs / 8.5 kg (18.7 lb) each
Woofer CabinetBass reflex

As an eBay Partner, we may be compensated if you make a purchase.