Energy Connoisseur CF-50 tower speakers — front view with grilles off, tweeter and three drivers visible

Energy Connoisseur CF-50 towers — angled front view of the pair with grilles off

Energy

Energy Connoisseur CF-50 2.5-Way Tower Speakers

Name: Energy Connoisseur CF-50 2.5-Way Tower Speakers
Brand: Energy
SKU: 14223
Price: 595.00 CAD
Availability: InStock

$595.00

Consignment piece. We sell it on behalf of its owner, and it's covered exactly like everything else we sell: inspected and serviced as required, and backed by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. The one difference: it isn't eligible for Cue It Up layaway.

Enjoy big, efficient Energy sound with the Connoisseur CF-50 — a slim Made-in-Canada floorstander that brings real punch, easy driveability, and a lot more scale than its footprint suggests.

✔️ Fully tested pair in very good condition
✔️ 2.5-way, four-driver design with standout 96 dB sensitivity
✔️ Dual 5-way binding posts for clean single-wire, bi-wire, or bi-amp setups
✔️ Packed seriously for the journey in 275 lb-test double-wall packaging
✔️ Backed by Radique Audio’s Bumper-to-Bumper Warranty and Perpetual Trade-Back Program

🎶 High-sensitivity Canadian towers with real swagger — lively, room-filling, and the sort of speaker that makes modest amps feel stronger than they have any right to.

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Description

Energy Connoisseur CF-50 2.5-Way Tower Speakers

A pair of Energy Connoisseur CF-50 compact floorstanding speakers — a highly efficient, four-driver 2.5-way tower from one of Canada’s most respected loudspeaker manufacturers, in very good condition.

The CF-50 is the standout performer of Energy’s Connoisseur series, and its 96 dB sensitivity rating immediately sets it apart from virtually everything else in its class. At 96 dB, the CF-50 requires only a fraction of the amplifier power that a typical 87–88 dB speaker needs to achieve the same listening level — one watt produces what most speakers need eight watts to match. This makes the CF-50 an ideal partner for lower-powered vintage amplifiers and receivers, while its 20–250 watt power handling range means it scales equally well with high-powered modern electronics. The front-firing bass reflex port extends low-frequency response to a genuine 39 Hz, producing room-filling bass authority that belies the speaker’s slim, 7.1-inch wide cabinet.

The 2.5-way four-driver topology is the key to the CF-50’s combination of sensitivity and tonal balance. Three 140mm (5.5″) woofers with Ribbed Elliptical Surrounds — a surround geometry that reduces distortion at higher excursion levels — handle the bass and lower midrange together, with two woofers rolling off at 1.2 kHz while the third continues operating up to the 2 kHz tweeter crossover. This arrangement provides generous cone area for low-frequency output while giving the upper midrange the focus and control of a single dedicated driver. The 25mm (1″) hyperbolic aluminum dome tweeter delivers clean, extended highs with a wide dispersion characteristic that keeps the top end consistent across a broad listening area. Energy’s Convergent Source Module positions the tweeter in close proximity to the upper woofer, acting as a near-point source to improve spatial coherence and imaging.

The high-gloss black baffle with black ash cabinet sides and gold-plated 5-way binding posts give the CF-50 a clean, purpose-built appearance that suits home theatre and two-channel installations equally well. Bi-wire and bi-amp capability via the dual binding posts allows those with suitable electronics to extract additional performance from the design.

These speakers have been thoroughly inspected and tested to confirm full functionality.

Specifications

Type: 2.5-way, 4-driver floorstanding, magnetically shielded bass reflex with front-firing port

Tweeter: 1 x 25.4 mm (1″) hyperbolic aluminum dome

Woofers: 3 x 140 mm (5.5″) with Ribbed Elliptical Surrounds

Crossover points: 1.2 kHz, 2.0 kHz

Frequency response: 39 Hz – 20 kHz (±3 dB)

Sensitivity: 96 dB

Nominal impedance: 8 ohms; 4 ohms minimum

Power handling: 20–250 W per channel

Inputs: Dual gold-plated 5-way binding posts (bi-wireable, bi-ampable)

Finish: Black ash cabinet, high-gloss black baffle

Dimensions per speaker: (Width x Height x Depth) 7.1 x 38.6 x 14.6 inches (180 x 981 x 370 mm)

Weight: 39.3 lbs (17.8 kg) each

A Energy Connoisseur classic — four drivers, exceptional 96 dB sensitivity, and genuine 39 Hz bass extension in a slim, room-friendly cabinet that performs well beyond what its footprint suggests. Fully tested and ready to anchor a high-performance home theatre or two-channel system.

Purchase with Confidence

Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program, you can purchase with confidence.

⭐ Don’t Just Take Our Word For It

Radique Audio holds over 600 customer ratings averaging 4.97 stars across six public platforms — Facebook Marketplace, Kijiji, Canuck Audio Mart, Google and others. Every rating lives somewhere we don’t control, so you can read the originals yourself, including the less flattering ones. See what our customers say. 👉

$595.00

Additional information

Weight	82 lbs
Dimensions	18.6 × 20.2 × 42.6 in

About brand

Energy at Radique

We service Energy, too. Bring us your own Energy speakers and subwoofers for repair, servicing or restoration (speakers up to 80 lbs each), with a 90-day warranty on the work. See our Audio Service page

Energy is a Canadian speaker brand from Audio Products International (API) of Scarborough, Ontario, the same company and factory behind Mirage. API was founded in 1973, and the Energy brand dates from the late 1970s or early 1980s. We carry Energy bookshelf speakers, towers, centre channels and subwoofers. We've had more than 170 Energy listings so far, covering more than 75 different models. Every used Energy here is inspected, tested and serviced as required, then photographed in-house and covered by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. Don't see the model you want? Tell us on First Dibs and we'll email you when one arrives.

Our five best-selling Energy models so far: the RC-mini bookshelf speakers, the e:XL-S8 and ESW-8 subwoofers, the e:XL-C centre and the C-300 towers.

The Energy story

Howard Heiber founded Audio Products International in 1973 in Scarborough, Ontario, as a builder of private-label speakers. Energy says its brand dates from 1973; other sources point to the late 1970s or early 1980s, when API took on the Energy and Sound Dynamics names.

Research in Canada. Energy took part in the National Research Council of Canada's listening-test research from 1977 to 1986, and its speakers were built at API's Scarborough factory, which it shared with Mirage.

Veritas and Connoisseur. The Veritas v2.8 flagship was shown at the 1993 Winter CES, and the Connoisseur series followed in the mid-1990s. The Take 5 satellite system arrived in 1997.

New owners. Klipsch Group of Indianapolis bought API, with Energy, Mirage and Athena, in August 2006, and production moved to China around 2006 to 2007. VOXX bought Klipsch in 2011, and Gentex bought VOXX in 2025.

Which Energy is which?

Veritas (1993 onward): the flagship line, such as the three-way v2.8.

Connoisseur (mid-1990s to mid-2000s): models such as the C-2, C-3, C-6 and C-8.

Reference Connoisseur (RC): including the RC-70 towers and the RC-mini, one of our best sellers.

Take 5 and Take Classic (1997 onward): small satellite-and-subwoofer systems.

XL and e:XL (2000s): the entry line. Our best-selling e:XL-S8 subwoofer and e:XL-C centre come from here.

C-series (late 2000s): the vinyl-finished budget line, from the C-50 to the C-500, including the C-300 towers.

Subwoofers: the ESW and S-series, such as the ESW-8 we sell often.

Buying used Energy: what to check

Aluminum-dome tweeters. Owners report broken tweeters on some Connoisseur models. Look closely for dented or cracked domes.

Powered subwoofers. Owners report failed plate amplifiers on some S-series subs. Any sub should play cleanly at volume.

Surrounds. Most Energy woofers of the 1990s and 2000s use rubber surrounds, but some models, such as the RVSS dipole, used foam. Press gently on each woofer surround.

Where it was made. Energy speakers were made in Scarborough into the mid-2000s and in China from about 2006 to 2007. Check the rear label if Canadian manufacture matters to you.

Everything we list is inspected, tested and serviced as required here, and comes with our warranty.