Pioneer Cs-787 Info
Key specifications (reported)
Modern speakers often use two drivers. The CS-787 uses five. Why?
They don’t make them like this anymore. And frankly, that’s a shame.
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. pioneer cs-787
If you are shopping for a used pair (which is the only way to get them), you need to know the weak spots.
: These are considered relatively rare on the second-hand market, particularly in mint condition with original grilles.
Prices fluctuate based on cosmetic condition and driver health, but they generally represent fantastic value compared to modern speakers of similar physical scale. Key specifications (reported) Modern speakers often use two
The Pioneer CS-787 is a testament to an era when major electronics manufacturers produced thoughtfully engineered, well-built, and great-sounding speakers for the mass market. While it may not be the most famous name in the Pioneer catalog, it is perhaps one of the most underappreciated. It successfully distills the essence of the lauded CS series into a compact, versatile, and affordable package.
To understand the hardware profile of the Pioneer CS-787, see the official manufacturer metrics documented via resources like the Hifi-Wiki Database : Specification 3-Way, 3-Driver Bass Reflex (Ported Enclosure) Power Handling 50 Watts (Nominal) / 80 Watts (Music Power DIN) Nominal Impedance 6.3 Ohms to 8 Ohms Frequency Response 40 Hz to 20,000 Hz Woofer Size 200 mm (8-inch) Cone Midrange Size 77 mm (3-inch) Cone Tweeter Size 66 mm (2.5-inch) Cone Cabinet Dimensions 560 x 320 x 230 mm (Height x Width x Depth) Total Weight (Pair) Approximately 14 kg (30.8 lbs) Driver Configuration and Cabinet Design
Typically rated between 80 to 120 Watts RMS, making them highly compatible with vintage receivers. They don’t make them like this anymore
To better understand the CS-787's value, it is helpful to see it in the context of other notable models in the Pioneer CS range. The table below compares the CS-787 with its larger and more famous siblings:
Walk into a vintage audio shop and you’ll spot the CS-99A immediately—it’s flashy. The CS-787 is the opposite. It is massive (25.5" H x 15.5" W x 12.75" D) and heavy (over 45 lbs). The cabinet is finished in a genuine walnut veneer that, when oiled, glows with a warm, furniture-grade luster.
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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.