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Sennheiser HD 660S2 Open-Back Audiophile Headphones – Excellent Condition

$400

Ships for $9.99

Posted 20 days ago in Los Angeles, CA

Condition: Used (normal wear)

Listed in categories: Electronics & Media - Audio & Speakers - Headphones

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Sennheiser HD 660S2 Open-Back Audiophile Headphones – Excellent Condition

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Details

Model: HD 660S2
Brand: Sennheiser

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Description

Description: Selling my Sennheiser HD 660S2 open-back audiophile headphones. This is the latest model in Sennheiser’s legendary 600-series, known for its detailed, smooth, and natural sound. The S2 improves bass extension and dynamics while keeping the classic mids and treble balance the line is famous for. I’m including the original accessories: • 4.4mm balanced Pentaconn cable (for high-end amps/DACs) • ¼” (6.3mm) single-ended cable • ¼” to 3.5mm adapter (for portable or standard headphone jacks) • Carry bag (no box) Specs: • Model: Sennheiser HD 660S2 • Type: Over-ear, open-back • Impedance: 300 ohms (ideal with a quality DAC/amp, but very manageable) • Frequency Response: 8 Hz – 41.5 kHz • Sensitivity: 104 dB SPL (1V) • Retail Price: $499–$649 new Condition: Excellent — lightly used in a smoke-free home. Pads are clean, no scratches, no issues.

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