Energy Single 3-way black floorstanding speaker

CF70 (Black)

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Audio for the Connoisseur: Energy's CF-70 floorstanding loudspeaker. A single 1" tweeter, single 5.5" mid-range driver, and dual 6.5" woofers combine to deliver full-range, 3-way audio with the flat, on-axis frequency response and low resonance for which Energy audio is known. While Convergent Source Module technology allows the tweeter and mid-range driver to operate as a single source for enhanced dispersion, Ribbed Elliptical Surround technology dramatically reduces distortion and improves fidelity.

Speaker priced and sold individually

For those who know audio: Energy's flagship Connoisseur floorstander

As the flagship model of Energy's Connoisseur floorstanding loudspeakers, the CF-70 offers full, 3-way audio reproduction. While a single 1.0" aluminum-dome tweeter and single 5.5" mid-range driver combine with Convergent Source Model technology to deliver single-source, wide-dispersion high- and mid-range audio, two 6.5" woofers team up with a ported, bass-reflex enclosure design to serve up deep and controlled bass audio. And that's all in addition to the high-performance repertoire of design features characteristic of any Energy loudspeaker, including flat on-axis frequency response, wide bandwidth, wide and constant dispersion, and low distortion and resonance. This is audio for the connoisseur.

Convergence upon audiophile sound

With Energy speakers, there's but one source for wide-dispersion, low-distortion, high-performance mid-range audio: the Convergent Source Module. By positioning the CF-70's midrange and tweeter drivers in close proximity to one another, Energy's Convergent Source Module technology makes it possible for the two drivers to act as a single source. The resulting increased overall dispersion creates a wider soundstage with enhanced clarity. Additionally, the independent chambering of the mid-range and tweeter drivers reduces resonance, helping to further curb distortion for higher fidelity audio reproduction.

Ribbed Elliptical Surround

The patented Ribbed Elliptical Surrounds encircling the Energy CF-70's woofer and mid-range driver cones are unlike any other. Because the shape of the speaker surround has been changed to an ellipse, distortion is dramatically reduced. Further, the resulting increased excursion and larger piston area allow for greater efficiency. Finally, because Ribbed Elliptical Surround technology allows for larger cone surfaces and greater peak-to-peak cone movement, an incredible amount of air can be moved by the driver, ultimately making it possible to play lower frequencies with greater fidelity

Bass reflex, it's like an instinct

The design of a variety of a loudspeaker's components is essential to its performance. As important as the design of the driver, amplifier, and circuitry is a floorstander's enclosure, or cabinet. As a vented-enclosure loudspeaker (also known as a bass-reflex cabinet), the Energy CF-70 allows you to experience enhanced low-frequency reproduction out of a smaller enclosure. Vented systems use the sound produced at the rear side of the driver's diaphragm to increase the efficiency of the system at low frequencies by taking advantage of the resonance of ports or vents designed into the enclosure. The air mass in the cylindrical ports resonates in response to the movement of the air behind the diaphragm within the enclosure, similar to the way that the air in a glass bottle resonates when you blow air across its mouth. Your new CF-70's vented design extends low-frequency bass performance and, simultaneously, allows for a more modest enclosure size that won't dominate space in your living room.

Psychoacoustics — Energy is crazy about sound

Energy's passion for and dedication to the reproduction of sound has a long history. Beginning back in the 1970s, Energy participated in nearly a decade of pioneering research into psychoacoustics, attempting to identify those measurable factors listeners associate with a "good-sounding" loudspeaker. Flat frequency response, wide dispersion, and low distortion, they concluded, were the primary factors influencing a listener's perception of the realism of sound produced by a speaker. Consequently, Energy has spent the past thirty years furthering research and applying research-based principles to their engineering and manufacturing of high-performance loudspeakers for the home audio enthusiast.

Included with purchase

The following items are included with the purchase of the Energy CF-70: Manual.

Comparison Specifications

Power rating: 20W - 300W
Impedance: 4 ohms, minimum / 8 ohms, nominal
Tweeter: One 1" hyperbolic aluminum-dome tweeter
Midrange: One 5.5" cone with Ribbed Elliptical Surround technology
Woofer: Two 6.5" cones with Ribbed Elliptical Surround technology
Crossover points: 2 kHz / 650Hz
Frequency response: 34Hz - 20kHz °3dB
Cabinet design: Front-firing, bass-reflex enclosure / high gloss black baffle with black-ash cabinet
Magnetic shielding: Yes
Mounting options: Floorstanding

Additional Specifications

Sensitivity: 96dB
Inputs: Dual, gold-plated 5-way binding posts
Convergent Source Module technology
Bass response: -10dB anechoic @ 27Hz

Dimensional Specifications

Dimensions: 8.4" W x 40.7" H x 15.6" D
Weight: 45.3 lbs

Energy CF70 Warranty Details

5-year limited parts and labor warranty

More reasons to buy the Energy CF70 from Vanns.com

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The Energy CF70 is Brand New
The Energy CF70 Ships in a Factory Sealed Box

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In Stock
Regular Price: ~~$549.99~~
Instant Rebate: $50.99 Hurry - Offer Limited to Stock on Hand
Shipping: FREE 3-day Shipping
Your Price: $499.00

Grab one of our customer returned open-box Energy CF70 from our clearance center.

Conditions: Open box return. No fault found to product. Full warranty included.

Clearance Code:

1122105211

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Factory serviced open box item. Product is guaranteed to be in full working condition. Small ding on rear of speaker. Full manufacturers warranty included.

Clearance Code:

0923173447

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Speaker has scratches all over. Not in original box and missing manual. Works perfectly.

Clearance Code:

0609104040

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Factory serviced open box item. Product is guaranteed to be in full working condition. Ding in middle back. Top rear corner has scuff. Full manufacturers warranty included.

Clearance Code:

1007180917

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Speaker has scratches all over. Not in original box and missing manual. Works perfectly.

Clearance Code:

0609104018

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Open box item. Product is in full working condition. Full warranty included

Clearance Code:

1118102522

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Factory serviced open box item. Product is guaranteed to be in full working condition. Box has damage. Small ding in rear middle. Full manufacturers warranty included.

Clearance Code:

1005179500

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Speaker has scratches all over. Not in original box and missing manual. Works perfectly.

Clearance Code:

0609103978

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Product has been repaired by a factory authorized repair center. Full warranty remains intact. Box is rough. Save now!

Clearance Code:

0511184328

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Open box return. No fault found to product. Full warranty included.

Clearance Code:

1118102523

Was:

~~$549.99~~

Your Price:

$274.99

Conditions: Open box product. Unit is missing the post plug. You save big when purchasing from our Clearance center. Full warranty.

Clearance Code:

0513185512

Was:

~~$549.99~~

Your Price:

$274.99

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