CORAL CX-77 (1976) | High Linear Sound

CORAL CX-77, Naturally beautiful, High Linear Sound from 1976. 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 0.1mm 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. The tweeter 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 7,000Hz. The expanded high-range frequency response of 40,000Hz easily reproduces everything within the normal audible frequency of 20,000Hz with outstanding directivity. The sound quality is amazing. There is also an attenuator that enables continuous variation of the mid- and high-frequency ranges independently. The x-over network is a 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. CORAL, having developed its own exclusive method for molding 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 and 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 700Hz to 7,000Hz. Clear, faithful sound. What more could one ask? 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. 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.

SPECIFICATIONS

Enclosure: Bass-reflex type 

Speakers: 30cm woofer, 5cm titanium dome squawker, 2cm hard dome tweeter

Frequency response: 30-40,000Hz

Crossover frequency 700Hz, 7,000Hz

Output sound pressure level. 94dB

Program source input......... 80W

Impedance. 8 Ohms

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

Weight 22kg

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Sony’s 1990 ES line: A bold blend of technology and timeless design

If you're a true audiophile, you know that the early 1990s were a golden era for home HiFi systems. Sony, a pioneer in audio innovation, made waves with its Elevated Standard (ES) line — and today we take a closer look at three stunning components that defined top-tier home audio: the TC-WR97ES cassette deck, the CDP-C87ES 5-disc CD player, and the powerful STR-GX90ES FM stereo receiver. At the top of the stack is the TC-WR97ES, a dual-well cassette deck that brings professional-level features into your living room. With Quick Reverse, HX Pro, Dolby B/C NR, and bias fine-tuning, this deck wasn’t just built to play tapes — it was made to preserve fidelity. The brushed aluminum faceplate, gold-plated outputs, and full logic transport underline its audiophile pedigree. Whether you're recording mixtapes from vinyl or playing back your favorite cassettes, this deck delivers rich, warm analog sound that digital can't replicate. Next up, the CDP-C87ES is more than just a CD changer — it’s a precision-engineered digital marvel. Featuring a 6th-generation advanced digital servo system and high-quality linear converters, it treats your CD collection with the respect it deserves. The player’s classical fidelity is ideal for long listening sessions with zero compromise. At the base, the STR-GX90ES stereo receiver acts as the command center. With high-current power delivery, massive toroidal transformer, and precision attenuators, this unit delivers dynamic, crystal-clear audio whether you're listening to FM, phono, or CD. This receiver wasn’t just about power — it also included source direct paths, dual speaker outputs, and premium signal processing. Wrapped in wood side panels and heavy shielding, it’s an audio statement piece as much as a functional amplifier. Over 30 years later, these components hold up remarkably well — not only in design but in sonic performance. Built like tanks, engineered with passion, and styled with class, the Sony ES 1990 lineup is a reminder of when audio gear was made to last a lifetime. Whether you're rediscovering these classics or collecting them for your vintage setup, one thing is clear: Sony’s ES Series remains an icon of high-end home audio.

Looking for more? Head to 1001HiFi.com for everything vintage audio.

 

Step Into the Ultimate Vintage Audio Experience – Welcome to 1001 HiFi: The Stereo Museum

 

Have you ever dreamed of walking into a room filled with timeless audio treasures — brushed aluminum faceplates, glowing VU meters, precision dials, and warm analog sound? The photo above is not a fantasy, but a glimpse inside the incredible collection of 1001 HiFi – The Stereo Museum, your online destination for the most legendary vintage audio gear ever made. At 1001HiFi.com, we don’t just showcase stereo equipment — we celebrate audio history. From rare cassette decks to iconic amplifiers, tuners, turntables, and CD players from the golden era of hi-fi (1970s to 1990s), our virtual museum brings you closer to the machines that defined a generation of sound.

🎧 What you’ll discover:

• Detailed overviews of classic stereo components from Sony, Technics, Pioneer, Marantz, Akai, and many more

• High-resolution photos and specs of real working gear

• A growing archive for collectors, enthusiasts, and audio lovers worldwide

📸 As seen in the image, the museum space is packed floor to ceiling with legendary models — carefully restored and proudly presented for all to admire. It’s a nostalgic trip for anyone who grew up with hi-fi sound and a revelation for those just discovering analog audio.

👉 Visit now: www.1001hifi.com
Rediscover the soul of stereo. Because great sound is forever.