RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Pass Labs X150 Power Amplifier Excellent condition. Fully functional with that beautiful Pass Labs sound. RRP for current model $12,995 Gain: 30 db Frequency response: -0 dB at DC, -3 dB at 100 kHz Power Output: 150 W maximum @ 1% THD, 1kHz into 8 Ohms (300 W into 4 Ohms) Maximum Output Voltage: +_ 50V Maximum Output Current: +_ 20A Input impedance: 22 kohms balanced Slew Rate: +_ 50V/uS Output Noise: 300 uV unweighted 20-20 kHz Random Noise Floor: approx. 2uV Dynamic Range: 145 db (random noise floor to peak output) Balanced CMRR: -85 db DC offset:
This is a strong deal. At A$2,800, it sits below the A$3,003 25th percentile and well under the A$3,168 median of your recent AUD comps, so it reads as genuinely attractive rather than merely fair.
The appeal here is straightforward: this is one of Pass Labs’ better-known Class A/B solid-state amps, valued for smooth but controlled delivery, excellent drive, and a big, effortless presentation that suits revealing speakers. At this price, an excellent-condition unit is a buy-worthy proposition, especially if it’s complete and has been well cared for. The main thing to confirm is normal maintenance history and clean operation, since these are mature pieces, but the pricing leaves enough room for that risk.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pass Labs, an American high-end audio powerhouse, traces its origins to 1991 when legendary designer Nelson Pass founded the company in his California home workshop. Emerging from his earlier venture with Threshold Electronics, Pass pioneered prototypes of single-ended Class A amplifiers, enlisting collaborator Mike Burley to build custom CNC machines for production. The debut Aleph 0 model shipped in 1992, marking the start of a legacy rooted in pure, innovative solid-state amplification.
The brand focuses intently on a select range of components, excelling in power amplifiers, preamplifiers, integrated amplifiers, and phono stages, all hand-built in Auburn, California. Renowned for minimalist circuits and pure Class A topologies—often blending into Class A/B for efficiency—Pass Labs delivers exceptional warmth, detail, and realism. While they ventured briefly into headphone amplifiers like the HPA-1, their core strength lies in amplification, eschewing speakers, turntables, DACs, headphones, or cables.
Positioned firmly in the ultra-high-end market, Pass Labs commands reverence among discerning audiophiles and professionals for its uncompromising engineering, industrial aesthetic, and emotional musicality. Products embody technical precision with timeless simplicity, sustaining a reputation for quality and innovation that has endured over three decades, making them a benchmark for those seeking transcendent sound reproduction.
See all Pass Labs listings on RADAR.
