Infinity Kappa 8 4-Way Floorstanding Speakers Pair – Restored – 1-Year Warranty

Original Infinity Kappa 8: A distinctive high-performance American loudspeaker design from the late 1980s.

Four-Way Architecture: Separate bass, mid-bass, midrange, and high-frequency sections.

12-Inch Woofer: Large low-frequency driver designed for substantial bass reproduction.

EMIT Tweeter: Infinity’s signature electromagnetic induction high-frequency driver technology.

Polydome Midrange: Dedicated dome driver designed for detailed vocal and instrumental reproduction.

Polygraph Mid-Bass: Separate mid-bass driver supporting the transition between bass and midrange.

Advanced Multi-Driver Design: A sophisticated crossover architecture for extended full-range music reproduction.

Distinctive Cabinet Styling: Tall wood-finished enclosures with sculpted edges and contrasting black front baffles.

Professionally inspected, tested, and serviced. Aging or degraded components have been replaced where necessary to restore performance as close as possible to original factory specifications.

Before Restoration

We received these vintage speakers for comprehensive inspection and refurbishment. The initial evaluation identified cabinet scratches, accumulated dust, and oxidation on speaker connection components.

During Restoration

Driver Testing: We tested the individual drivers and measured their DC resistance.

Woofer Inspection: We checked the bass drivers, cones, surrounds, and mounting assemblies.

Mid-Bass & Midrange: We inspected the Polygraph mid-bass and Polydome midrange driver assemblies.

EMIT Tweeters: We inspected and tested the high-frequency driver assemblies.

Crossover Networks: We inspected and measured crossover components; out-of-spec capacitors were replaced.

Level Controls: We cleaned and serviced the speaker adjustment controls.

Terminals & Wiring: We inspected internal wiring and cleaned the rear connection terminals.

Cabinet Restoration: We repaired surface imperfections, sanded the cabinets, and refinished the wood surfaces.

Cabinet Cleaning: We removed accumulated dust and cleaned accessible interior surfaces.

Mounting & Seals: We checked driver mounting hardware and cabinet gaskets.

After Restoration / Final Testing

We completed the standard speaker burn-in procedure to evaluate operational stability.

We performed frequency-sweep testing and listening evaluations on both loudspeakers.

We checked the speakers for normal sound output following the service process.

Technical Condition

Professionally refurbished passive loudspeakers. The pair has been checked for normal operating performance.

Cosmetic Condition

The cabinets feature richly patterned brown wood-finished surfaces, contrasting black front baffles, and rounded cabinet edges. The vintage character remains visible in the actual product photographs, including minor surface variations and signs of age. Please examine the photographs for the exact finish and cosmetic details.

QC Summary

The speaker pair has completed the HQaudios inspection and refurbishment process. Its finished cosmetic presentation is shown in the actual product photographs.

Brand: Infinity

Model: RS 8 Kappa (Original Kappa 8)

Product Type: Passive Floorstanding Loudspeaker

Speaker Configuration: 4-Way

Low-Frequency Driver: 12-Inch Woofer

Mid-Bass Driver: 5-Inch Polygraph

Midrange Driver: 3-Inch Polydome

High-Frequency Driver: EMIT Tweeter

Factory Frequency Response: 33 Hz – 45 kHz (+/-3 dB)

Factory Nominal Impedance: 4 – 6 Ohms

Factory Power Rating: 50 – 250 Watts RMS

Factory Sensitivity: 89 dB (1 W / 1 m)

Factory Crossover Frequencies: 80 Hz / 800 Hz / 4,500 Hz

Factory Reference Dimensions (Each): 20.8 W x 47.5 H x 8 D Inches

Factory Reference Weight (Each): Approximately 88 lb (40 kg) per speaker

Cabinet Finish: Brown Wood Tone with Black Front Baffle

Listed Configuration: Stereo Pair (2 Speakers)

Speaker Stands: Included with this speaker pair.

Speaker Grilles: The grilles shown in the actual product photographs are included.

Only the items specifically listed above are included.