Energy Connoisseur CB-10 Bookshelf Speakers — 90dB, 125W

Energy Connoisseur CB-10 — Compact Bookshelf, 90 dB, Rear-Ported

A compact, surprisingly muscular bookshelf pair from Energy’s Connoisseur series — designed in Canada, reviewed by Stereophile, and capable of far more output than a speaker this size has any right to produce.

The NRC Pedigree

Energy has been building loudspeakers since 1973, developing its designs in conjunction with Canada’s National Research Council, and the CB-10 was engineered in 2008 by the company’s Canadian design team. At its centre is Energy’s Convergent Source Module (CSM): the tweeter and woofer are mounted in close proximity so they behave as a single coincident source, delivering wide, constant dispersion and a flat on-axis response — the practical result being a speaker that sets up easily and sounds right from more than one seat.

Drivers and Surround

The 5.5-inch poly cone woofer uses Energy’s patented Ribbed Elliptical Surround, which increases excursion and effective piston area while lowering distortion, making the CB-10 an easy load for modest amplification. The 1-inch hyperbolic aluminum dome tweeter crosses over at 2.8kHz and delivers clean, accurate highs with genuine power handling. Stereophile’s reviewer found the CB-10 dug deep into recordings, surfacing low-level detail he hadn’t expected, and noted that it could really rock — delivering power and impact well beyond its dimensions.

The Rear Port

A large rear-firing port — two inches across, flaring to nearly three — is the key to the CB-10’s bass output, using boundary reinforcement to generate weight a cabinet this size shouldn’t manage. It’s a generous, full-bodied bass rather than a lean one: place these on a shelf or against a wall for maximum extension, or pull them a few inches out into the room if you prefer a tighter, drier balance. That flexibility is genuinely useful, and it means the CB-10 can be tuned to the room by placement alone.

Build Quality

Build quality holds up: a rigid, low-resonance MDF enclosure in black ash with a high-gloss black baffle, gold-plated five-way binding posts accepting bare wire, spades, pins, and single or dual bananas, magnetic shielding for safe placement near a screen, and threaded inserts for wall-mounting. Rated 20 to 125 watts per channel, they pair happily with anything from a modest integrated to a full AV receiver.

Condition and Service

This pair has been thoroughly inspected and tested to confirm full functionality. Both cabinets have been fitted with Radique Audio high-density felt pads in our signature magenta — they protect shelving and furniture surfaces, decouple the cabinets from whatever they sit on, and keep the speakers from creeping during heavy passages.

Condition

Cosmetically graded Very Good, this pair presents cleanly with the gloss baffles and black ash cabinets in fine order. The original grilles are not included — worth noting that Energy designed this series to look, in the company’s own words, as attractive with the grilles on as off, the gloss baffle and silver drivers being a deliberate visual feature. Grille absence has no effect whatsoever on performance.

Real output, easy setup, and Canadian design pedigree in a cabinet that fits anywhere — equally at home as a compact music system or the front pair of a home theatre.

Energy Connoisseur CB-10 Specifications

• Design: 2-way magnetically shielded bass-reflex bookshelf with rear-firing port
• Tweeter: 1-inch hyperbolic aluminum dome
• Woofer: 5.5-inch poly cone with patented Ribbed Elliptical Surround
• Convergent Source Module (CSM) driver arrangement for wide, consistent dispersion
• Crossover point: 2.8kHz
• Frequency response: 66Hz to 20kHz
• Sensitivity: 90 dB (in-room)
• Impedance: 8 ohms nominal
• Recommended amplifier power: 20 to 125 watts per channel
• Gold-plated 5-way binding posts
• Threaded inserts for wall-mounting
• Enclosure: rigid MDF, black ash finish with high-gloss black baffle
• Fitted with Radique Audio high-density felt pads in signature magenta
• Designed in Canada; voice-matched to Energy’s 2008 Connoisseur series
• Dimensions each: (Width x Height x Depth) 7.1 x 11.4 x 8.5 inches (180 x 290 x 216 mm)
• Weight: 8.9 lbs (4 kg) each

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