Coral CX-7 speakers

Model CX-7A

 

Model CX-7 MkII

 

3-Way, 3-Speaker System

Specifications

Type:  Air Tight

Speakers

300 mm (12") woofer

One soft dome squawker

One hard dome super tweeter

Impedance:  8 Ω

Program Source Input:  80 W

Frequency Response:  35 - 40,000 Hz

Output Sound Pressure Level:  93 dB

Crossover Frequency:  1,500 Hz ; 8,000 Hz

Dimensions (W x H x D):  350 x 580 x 314 mm (13-13/16" x 22-13/16" x 12-6/16")

Weight:  17 kg (37,4 lbs)

Finish

CX-7A :  rose wood

CX-& MkII :  walnut or black

 

Coral CX-77 loudspeakers

12-inch 3-way 3-speaker system

Symmetric Paired Cabinet Systems - Enclosure

The higher the performance of the speakers, the more important the quality of their enclosure becomes. The CX-77 system uses a bass-reflex enclosure, which features a highly condensed multi-layer particle board, eliminating unwanted vibration. The side, baffle and back boards are strongly reinforced. Ester wool, Tetoron wool and soft felt, all with excellent sound properties, are used as acoustic material. The speakers are symmetrically mounted to achieve optimum directivity. Beautifully finished with UVD coating, the CX-77 system enclosure symbolizes the perfection of the system.

 

Woofer

The light, tough cone paper ensures optimal linearity.

Proper balance among tweeter, squawker, and woofer is crucial when assembling a good speaker system. Cone paper, the heart of the woofer, must possess high Young's modulus and be fully flexible. The woofer in the CX-77 speaker system features Coral's own specially developed micro-crystal cone paper, the surface of which is coated with fine hollow crystal grains 0,1 mm in diameter and with a specific gravity of 0,3. thus partial vibration has been greatly enhanced, refining the transient characteristics of the lower and bass ranges. The rest of it, too - the free edge with full linearity, diecasting frame absolutely without resonance, powerful magnetic circuit help - all contribute to some of the richest, most listenable low frequency sounds available.

 

Squawker

Titanium dome ideally shaped to overcome molding difficulties.

Coral, having developed its own exclusive method for loading highly rigid titanium speaker domes, is now able to provide the audiophile with the most superb mid-range speakers ever. The voice coil in these speakers features CCAW winding and flawlessly maintains optimum balance of mass, extending the high range limit ans largely improving transient characteristics. The aluminum bobbin boasts large input resistivity, and a spacious back cavity easily expands the Frequency Response of the lower range to efficiently cover everything from 700 Hz to 7,000 Hz. Clear, faithful sound.

 

Tweeter

A super-tweeter with a super-high limit - 40,000 Hz

The ultimate limit of high-frequency sound reproduction, plus the elimination of distortion and the optimum in transient characteristics. The attainment of these goals is what audio engineers are continually stribing toward - to build a tweeter which will flawlessly reproduce the delicate high-range sound properties of every musical instrument. Coral's is a hard dome-type super-tweeter that uses a diaphragm of 18-micron-thick ultra-thin Super Duralmin having a crossover frequency of 7,000 Hz. The expanded high-range frequency response of 40,000 Hz easily reproduces everything within the normal audible frequency of 20,000 Hz with outstanding directivity. The sound quality is amazing.

 

Level Controller

An attenuator that enables continuous variation of the mid- and high-frequency ranges independently. The levels may be easily regulated simply by removing the front Saran cloth net.

 

Dividing Network

Low-loss design employing a Mylar film capacitor and a coil featuring a high permeability reluctance ferrite core, which refuses to cause linear distortion even under large input. The design brings out the maximum transient characteristics of each speaker, the result being thoroughly well-balanced sounds.

 

Specifications

Enclosure:  Bass-reflex type

Speakers

1 x 300 mm Woofer

1 x 50 mm titanium dome squawker

1 x 20 mm hard dome tweeter

Frequency Response:  30 - 40,000 Hz

Crossover Frequency:  700 Hz ; 7,000 Hz

Output Sound Pressure Level:  94 dB

Program Source Input:  80 W

Impedance:  8 Ω

Dimensions (W x H x D):  390 x 650 x 320 mm

Weight:  22 kg

 

Coral BX-2000

 12" 3-Way 5-Speaker System

From Coral's magnificent hall of sound comes yet another dynamic system - the BX-2000 with its big 100 W capacity, 25 Hz bass fidelity, and the new surround-sound that gives you matchless quality no matter where you are sitting.

Outstanding 100 W Capacity

Flexibility is an enormous asset. Even if one buys a quality speaker with the intention of using it in the home, it's comforting to know it has the power to sound every bit as good - probably better - in a hall. Linked to suitable amplification, the 100 W capacity of the BX-2000 is a magnificent way to fill a hall with undistorted sound.

 Exclusive Wide-Focus Acoustic Lenses

In most living rooms the easy chairs are not dead-center, so speakers that put all their best sound in the center of the room are missing the point. Coral's acoustic lenses ensure that maximum quality reaches every part of a room or hall. That's surround-sound - the freedom to sit where the furniture is.

Hollow Formed Cone

Coral cones always sound that little bit different from those of other speakers. The reason are the uniquely blended pulp from which they are made and the secret manufacturing process. The result is a cone with solid surfaces sandwiching a resilient lining. The sound is satin smooth, and brilliant.

Bass Reflex-Type Cabinet

The same care that Coral puts into all its speaker components is reflected in the design of the cabinets that house them. But a handsome appearance is not enough. Internal construction is a major factor that influences the dynamism of any speaker system. 

Specifications

System:  3-way, 5-speaker

Speakers:

1 x woofer :  12" (305 mm)

2 x midranges :  5" (127 mm)

2 x tweeters :  2 ½" (64 mm) cone type tweeter

Capacity:  100 W

Sensitivity:  1-3 dB

Frequency Range:  25 - 25,000 Hz

Impedance:  8 Ω

Cabinet:  Bass-reflex type

Dimensions (H x W x D):  650 x 420 x 280 mm

Weight:  22 kg (48,4 lbs)