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Pioneer Cs-787

The Pioneer CS-787! That's a classic bookshelf speaker from the 1970s. Here are some features of the Pioneer CS-787:

Key Features:

  1. Two-way speaker design: The CS-787 is a two-way speaker, meaning it has two drivers: a woofer and a tweeter.
  2. 10-inch woofer: The speaker features a 10-inch (25 cm) woofer, which provides good low-frequency response.
  3. 1-inch tweeter: The tweeter is a 1-inch (2.5 cm) dome-type tweeter, which handles high-frequency sounds.
  4. Frequency response: The CS-787 has a frequency response range of 40 Hz to 20 kHz.
  5. Sensitivity: The speaker has a sensitivity rating of 90 dB, which means it's relatively efficient and can produce good sound levels with moderate amplifier power.
  6. Crossover network: The speaker features a crossover network that divides the audio signal between the woofer and tweeter, ensuring a smooth transition between frequencies.
  7. Wooden enclosure: The CS-787 has a wooden enclosure, which helps to reduce resonance and improve sound quality.

Additional details:

The Pioneer CS-787 is a vintage 3-way bass reflex loudspeaker system originally released between 1984 and 1985. Designed as part of Pioneer's accessible home audio line, it was often paired with mid-range hifi "rack" systems of the mid-80s to provide a full-room sound experience at a budget-friendly price point. Specifications & Design

The CS-787 follows a classic 3-way layout, meaning it uses three specialized drivers to handle different parts of the audio spectrum. Woofer: 200 mm (approx. 8-inch) cone. Midrange: 77 mm cone. Tweeter: 66 mm cone.

Power Handling: Rated for a nominal/music power of 50/80 Watts at 8 Ohms. Frequency Response: 40 Hz to 20,000 Hz.

Cabinet: A bass-reflex design typically constructed from chipboard or LDF, often featuring a black or wood-grain vinyl finish. Performance & Reputation In the vintage audio community, the

is generally viewed as a "entry-level" or "mid-low level" floorstanding speaker.

Sound Profile: While some users appreciate their "warm tone" and nostalgic feel, critics often point out that the cabinets can be thin, leading to resonance or a lack of deep bass response compared to higher-end "Kabuki" style Pioneer speakers like the CS-99A.

Nostalgia Value: For many owners, these speakers are a "thrift store find" or a childhood relic that provides a "fun" listening experience, especially when paired with a vintage receiver. They are often recommended for casual vinyl listening rather than critical audiophile setups. Where to Find Them As a vintage product, you can typically find the on secondary marketplaces.

eBay often lists various models from the CS series, with prices for this specific model usually remaining affordable.

Facebook Marketplace and local thrift shops are also common places to spot them, as they were widely distributed in the 80s.

The Pioneer CS-787 is a classic 3-way bass reflex loudspeaker system released around 1984. Often paired with the Pioneer XA-77 component system, these floorstanding speakers were designed to bring high-fidelity audio into mid-80s living rooms with a distinctive vintage aesthetic. Technical Specifications

While vintage equipment specs can vary by region, the core technical profile of the CS-787 includes: System Type: 3-way, bass-reflex (open volume) enclosure. Driver Configuration: Woofer: 200 mm (8-inch) cone. Midrange: 77 mm (approx. 3-inch) cone. Tweeter: 66 mm (approx. 2.5-inch) cone.

Power Handling: 50 Watts (nominal) to 80 Watts (music power). Impedance: Rated between 6.3 and 8 Ohms. Frequency Response: 40 Hz to 20,000 Hz.

Dimensions: Approximately 560 mm (H) x 320 mm (W) x 230 mm (D).

Weight: Approximately 7 kg per speaker (14 kg total for a pair). Audio Performance and Character

According to enthusiast reviews on Hi-Fi-Wiki and Reddit, the CS-787 delivers a sound signature typical of 80s paper-cone speakers.

Sonic Profile: The sound is often described as leaning toward the "bright" or "light" side. While the 8-inch woofer provides a solid presence, some users find the bass response less aggressive than modern sub-heavy systems.

Build Quality: These speakers typically feature a chipboard or LDF cabinet with a wood-grain vinyl finish. Many pairs found today still feature the original "front net" covers, which are essential for maintaining the vintage look.

Suitability: They are widely considered an excellent choice for budget-conscious vinyl listeners or those setting up a "period-correct" vintage audio system from the mid-80s. Market Value and Collecting

Pioneer CS-787: A Legendary Speaker System from a Bygone Era

The Pioneer CS-787 is a iconic speaker system that was produced in the 1970s and has since become a highly sought-after collector's item among audiophiles and vintage electronics enthusiasts. This legendary speaker system is renowned for its exceptional sound quality, sleek design, and durability.

Design and Features

The Pioneer CS-787 is a three-way speaker system that consists of two main speakers and a separate bass reflex enclosure. The main speakers feature a two-way design with a 12-inch woofer and a 2-inch tweeter, while the bass reflex enclosure adds an additional 12-inch woofer to enhance low-frequency response. The speakers are housed in a sturdy wooden cabinet with a beautiful walnut finish.

The CS-787 also boasts an impressive array of features, including: pioneer cs-787

Sound Quality

The Pioneer CS-787 is widely regarded as one of the best speaker systems of its era, and for good reason. The speakers deliver a rich, detailed sound with deep bass, clear midrange, and crisp highs. The system's three-way design and carefully tuned crossover network ensure that each frequency range is handled by a dedicated driver, resulting in a remarkably coherent and engaging listening experience.

Collectibility and Legacy

The Pioneer CS-787 has become a highly sought-after collector's item among vintage electronics enthusiasts, with prices for mint-condition units reaching into the thousands of dollars. The speaker system's legendary status can be attributed to its exceptional sound quality, beautiful design, and the fact that it was produced during a time when Pioneer was at the forefront of audio innovation.

Specifications

Conclusion

The Pioneer CS-787 is a legendary speaker system that continues to captivate audiophiles and vintage electronics enthusiasts to this day. Its exceptional sound quality, beautiful design, and durable construction make it a true classic of the audio world. Whether you're a seasoned collector or simply a music lover looking for a unique listening experience, the Pioneer CS-787 is definitely worth investigating.

The year was 1984, and for Leo, the world was measured in decibels and wood grain. He had spent three months’ salary on them: a pair of Pioneer CS-787

floor speakers. They were massive, imposing towers of walnut veneer that smelled faintly of factory lacquer and promised a frequency response that could reach into the soul.

When he finally got them home, he didn't just plug them in. He staged them. He positioned them exactly four feet from the back wall, angled slightly toward his worn leather armchair. He hooked them up to his silver-faced SA-7800 amplifier, the thick copper wires snaking across the hardwood like veins. The first needle drop was

The CS-787s didn't just play the music; they breathed it. The 12-inch woofers moved air with a physical presence, making the kick drum in "The Chain" thump against Leo’s chest. But it was the mids and the paper-cone tweeters that did the real magic. They caught the rasp in Stevie Nicks' voice, a texture so granular it felt like she was standing between the bookshelves.

For a decade, those speakers were the heartbeat of the apartment. They vibrated through Saturday night parties, softened into the background for rainy Tuesday dinners, and eventually provided the soundtrack to his daughter Clara’s first steps. Clara grew up fascinated by the "big brown boxes." She wasn't allowed to touch the delicate dust caps, but she would sit cross-legged on the floor, feeling the vibrations of her father's jazz records through the soles of her feet.

By the late 90s, the world had gone digital. Plastic surround-sound systems and tiny satellite speakers were the trend. Friends told Leo to "upgrade" to something sleeker, something that didn't take up half the living room.

"They’re vintage now, Leo," his neighbor would say. "They're dinosaurs."

Leo would just smile, turn the volume knob to two o'clock, and let the warm, effortless overhead of the Pioneers do the talking. You couldn't get that kind of "air" from a plastic cube.

Eventually, the foam surrounds on the woofers began to crumble—a victim of time and humidity. The speakers went silent, relegated to a corner under a sheet. But Leo couldn't part with them. They held too much smoke, laughter, and history in their cabinets.

Years later, for Leo’s 70th birthday, Clara showed up with a toolkit and a pair of professional re-foaming kits. They spent the afternoon at the dining table, scraping away the old adhesive and carefully centering the new orange-tinged foam rings.

When they finished, they hauled the towers back to their rightful place. Leo pulled a pristine copy of Kind of Blue from the shelf. He lowered the tonearm.

As Miles Davis’s trumpet pierced the air, clear and brassy and wide, the room felt full again. The CS-787s weren't just speakers; they were time machines. And in that moment, the 80s, the 90s, and the present all hummed together in perfect, analog harmony. technical specifications of the CS-787 or perhaps a guide on how to restore vintage speaker foam

Pioneer CS-787 is a vintage 3-way bass reflex speaker system released around 1984. Known for its classic Japanese engineering, it is often sought after by enthusiasts looking for a "nostalgic" sound that fills a room with clarity and depth. Key Technical Specifications

The CS-787 is designed to be efficient, making it compatible with a wide range of vintage amplifiers. System Type: 3-Way, Bass Reflex. Driver Configuration: ) cone for low-frequency response. Power Handling: (nominal) and up to (music power). Impedance: (some variants may show Frequency Range: Dimensions: Approximately Sound Profile & Performance Warm & Non-Fatiguing:

Like many vintage Pioneer CS models, the 787 is often described as having a pleasing, non-fatiguing sound that can be listened to all day. Midrange Presence:

While it may not reach the extreme low frequencies of larger models like the HPM series, it offers a solid midrange and clear highs suitable for classic rock, jazz, and vocal-heavy tracks. Efficiency: With a high sensitivity (typically around

in this series), these speakers do not require massive amounts of power to reach high volume levels. Market Value & Availability

Because these are older units, prices vary significantly based on the condition of the wood veneer and the original drivers. The Pioneer CS-787

Pioneer CS-787 is a classic 3-way bass reflex loudspeaker system originally manufactured in Japan between 1984 and 1985

. It is characterized by its large, traditional cabinet design and balanced vintage sound, making it a popular choice for collectors of 1980s Hi-Fi equipment. Technical Specifications According to documentation from

and vintage community listings, the key specifications include: System Type: 3-way, 3-driver bass reflex. Driver Configuration:

200 mm (approx. 8 inches) cone type for powerful low frequencies. 77 mm cone type for clear vocal presence. 66 mm cone type for crisp highs. Power Handling: 50 Watts (Nominal) / 80 Watts (Music Power). Impedance: Frequency Response: 40 Hz to 20,000 Hz. Dimensions: Roughly 58 x 32 x 26 cm (H x W x D). Approximately 20 kg per pair. Design and Performance

The CS-787 was designed as a capable, mid-range home speaker. It features a bass reflex port

that enhances lower-end response, often described by users on as "powerful without loss of quality".

The aesthetic is quintessential 80s, typically featuring dark wood-grain cabinets and removable front net covers. While some enthusiasts consider this era of Pioneer speakers to be more "budget-friendly" compared to the high-end HPM series, the CS-787 remains respected for its durability and "old school" sound signature. Maintenance Tips If you are acquiring or restoring a pair: Driver Inspection:

Check the paper cones and surrounds for any brittleness or "midrange defects" common in vintage units. Terminals:

The Pioneer is a vintage floor-standing loudspeaker from the mid-to-late 1980s, typically recognized as part of a "rack system". While they offer a classic vintage aesthetic, they are generally viewed by audio enthusiasts as mid-to-low level entry-level speakers rather than high-fidelity components. Key Specifications & Design Configuration: 3-way loudspeaker system.

Power Handling: Rated at approximately 80W with a 6.3 Ohm impedance.

Build: Cabinets are typically made of chipboard or low-density fiberboard (LDF) with a wood-grain vinyl finish, rather than solid wood.

Drivers: Usually features a large woofer (often 10-12 inches), a paper cone midrange, and a paper cone tweeter. Sound Performance

Strengths: They are capable of playing loudly and are well-suited for "party" environments or casual listening in a garage or large basement. They can provide a "fun" sound with decent bass if powered by a substantial vintage amplifier.

Weaknesses: Critical listeners often find the sound quality lacking in detail and accuracy. Common complaints include sibilant highs, a harsh midrange, and poor center imaging. The bass can sometimes feel "boomy" rather than tight or deep due to the lighter cabinet construction. Market Value & Advice

Pricing: On the secondary market, these typically sell for between $40 and $100 depending on condition. Some specialty vintage shops may list them higher (e.g., ~€315), but enthusiasts often consider anything over $100 to be overpriced.

Recommendation: They are great for nostalgia or a budget-friendly starter system. However, if you are looking for high-end "audiophile" sound, they may not meet your expectations compared to Pioneer's higher-tier lines like the HPM series.

Are you considering these for a primary listening setup or more for a casual/party space?

Title: The Apex of the Stone Age: A Technical and Historical Analysis of the Pioneer CS-787 Speaker System

Abstract The Pioneer CS-787, released in the late 1970s, stands as a quintessential example of the "Stone Age" era of Japanese audio engineering. Characterized by its massive cabinet size, multi-driver arrays, and distinctive granite-finish enclosure, the CS-787 represents a design philosophy that prioritized acoustic presence and aesthetic weight over the miniaturization trends that would follow. This paper explores the technical specifications, design philosophy, and enduring legacy of the CS-787 within the vintage Hi-Fi community.

1. Introduction The late 1970s is often referred to by audiophiles as the "Golden Age" or "Stone Age" of Japanese audio equipment. During this period, manufacturers like Pioneer, Sansui, and Kenwood competed to produce receivers and speakers of increasing power and physical size. Pioneer, a market leader, catered to a demographic seeking not only high fidelity but also furniture-grade aesthetics.

The Pioneer CS-787 was positioned near the top of Pioneer’s non-ES (Exclusive Series) speaker lineup. It was designed to mate with the era’s high-powered receivers (such as the SX-1250 or SX-1980) which required speakers capable of handling substantial wattage without distortion. The CS-787 is distinct for its incorporation of Pioneer’s "Granite" finish—a unique aesthetic choice that gave the speaker the appearance of hewn rock.

2. Design and Engineering Philosophy

2.1 The "Granite" Aesthetic The most immediately striking feature of the CS-787 is its cabinet finish. Unlike the walnut veneer or teak finishes common to the era, the CS-787 utilized a heavy, textured finish designed to mimic gray or speckled granite. This was not merely a visual choice; the thick, dense material contributed to the cabinet's rigidity and helped dampen resonance. Weighing approximately 46 pounds (21 kg) per speaker and standing nearly 28 inches tall, these units commanded a significant presence in a living room, designed to function as both audio equipment and substantial furniture pieces.

2.2 Driver Configuration The CS-787 utilizes a 4-way, 6-driver configuration, a complex arrangement typical of the era’s "more is better" mindset. This configuration includes:

2.3 Crossover Network Managing a 4-way system requires a complex crossover network. The CS-787 features level controls on the front baffle, allowing the user to adjust the output of the mid-range and high frequencies to compensate for room acoustics—a standard feature in vintage floor speakers that allowed for a degree of customization in the pre-digital equalization era. Two-way speaker design : The CS-787 is a

3. Technical Specifications

4. Acoustic Performance and Characteristics From a modern audiophile perspective, the CS-787 offers a sound profile that is distinctly "vintage."

Critics of the era—and vintage enthusiasts today—note that while the CS-787 lacks the surgical imaging of high-end modern bookshelf speakers, it excels in dynamics and scale. It is particularly well-suited for genres such as jazz, rock, and orchestral music, where the physical impact of the instruments is paramount.

5. Market Context and Legacy The Pioneer CS-787 was arguably the apex of Pioneer’s consumer-grade "CS" series (excluding the Japanese domestic "Exclusive" brand). It was manufactured during a time when the audio industry was beginning to shift toward smaller, more "accurate" monitors like the LS3/5a, and eventually toward the subwoofer/satellite systems of the home theater era.

Consequently, the CS-787 and its siblings (like the CS-88) represent the end of an era where speakers were large, room-dominating fixtures.

6. Conclusion The Pioneer CS-787 remains a sought-after piece of vintage audio equipment. Its enduring appeal lies in its combination of robust over-engineering and unique aesthetic. While modern speaker design has largely abandoned the 15-inch multi-driver floor-standing format in favor of smaller, powered subwoofer configurations, the CS-787 offers a tactile and immersive listening experience that modern equipment often struggles to replicate without significant cost. As a representative artifact of the "Stone Age" of audio, the CS-787 stands as a testament to a time when Hi-Fi was a tangible, heavy, and commanding presence in the home.

References / Further Reading

The Pioneer CS-787 is a classic 3-way bass reflex loudspeaker system manufactured in Japan during the mid-1980s (approximately 1984–1985). It is known for its "bright" vintage sound signature and distinctive wood-veneer aesthetic, making it a popular choice for retro Hi-Fi enthusiasts. Key Features and Specifications

3-Way Speaker Configuration: Features dedicated drivers for different frequency ranges to provide clear audio across the spectrum. Woofer: 200 mm (8-inch) cone type for deep bass. Midrange: 77 mm cone type for clear vocals and presence. Tweeter: 66 mm cone type for shimmering high frequencies. Audio Performance:

Frequency Response: 40 Hz to 20,000 Hz, covering most audible sound ranges.

Power Handling: Rated at 50W (nominal) to 80W (music power).

Impedance: Typically listed as 8 ohms, though some variations or measurements cite 6.3 ohms. Build & Design:

Enclosure: Bass reflex design with a wood finish, often including removable front cloth grilles.

Dimensions: Approximately 56 cm (H) x 32 cm (W) x 23 cm (D). Weight: Roughly 7 kg per speaker (14 kg per pair). Expert and User Insights

Sound Quality: Reviewers often describe the sound as "bright" and powerful, filling a room with clarity and depth without significant loss of quality.

Availability: These are considered relatively rare on the second-hand market, particularly in mint condition with original grilles.

Maintenance Note: As vintage equipment from the 80s, units may require a "tune-up" or inspection of the driver surrounds to ensure they haven't deteriorated over time.

Common Problems & Restoration Tips

If you are shopping for a used pair (which is the only way to get them), you need to know the weak spots.

  1. The Foam Surrounds: The 16" woofer uses a foam surround that will have rotted away by now. Do not play a speaker with rotten foam. You will destroy the voice coil. Re-foaming these speakers is a rite of passage. Kits are available online (around $40-$60 per pair), but it is a fiddly job due to the heavy cone. Pay a professional if you aren't handy.

  2. The Crossover Capacitors: After 45+ years, the electrolytic capacitors in the crossover have drifted out of spec. This makes the sound dull or unbalanced. Replacing these with polypropylene film capacitors is the single best upgrade you can make. It will cost $50 in parts and an hour of soldering.

  3. Grille Pegs: As mentioned, the plastic pegs snap. You can find 3D-printed replacements or use velcro strips.

  4. Dust & Pots: There are usually level controls (L-pads) for the midrange and tweeter on the back. These get scratchy. A spray of Deoxit contact cleaner will fix them.

Is the Pioneer CS-787 Worth Buying in 2025?

Yes, if:

No, if:

You will likely enjoy the CS-787 if:

The Sound Signature: The Good, The Great, and The Gritty

If you buy a pair of CS-787s, you are buying a specific vibe—not clinical accuracy.

Who Are These Speakers For?