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Pass Labs Aleph 1 Monoblock Power Amplifiers; Recently Serviced

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Original price $12,500.00 (66% Off Est. Retail)
Original price From $4,299.00
Original price $12,500.00 (66% Off Est. Retail)
Current price $4,299.00
From $4,299.00
Current price $4,299.00

+$499.00 Shipping to contiguous US.
Tax collected at checkout.

Earn 4,299 TMR Rewards points for this purchase.
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Our Safe Pack and Ship Guarantee means we guarantee its safe arrival. Items are carefully double-boxed or custom foam-molded. For larger pieces, we palletize to ensure secure, upright delivery. In rare cases of loss or damage, we fully protect your purchase.

Shipping Cost

Shipping within the Continental USA is $499.00—this includes securing to a pallet with adequate protection and shipping via FedEx Freight to a residential address anywhere in the Continental USA. This rate can be reduced by $60 if a commercial delivery address is available or if the item can be picked up at the nearest FedEx Freight depot. FedEx Freight charges a residential delivery fee otherwise, which is included in our flat rate charge.

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Product Highlights

The Pass Labs Aleph 1.0 monoblock power amplifier delivers 150 watts into 8 ohms with a peak output current of 50 amperes. This high-end solid-state component anchors standard-setting stereo systems by providing immense power to demanding loudspeakers. It utilizes a pure single-ended Class A topology with a three-stage gain architecture and matched power Mosfet devices to ensure an incredibly linear, direct signal path. An oversized power supply and internal heat sinks handle the substantial heat generated by this high-bias design, while balanced XLR and single-ended RCA inputs populate the rear panel.

Critical acclaim focuses heavily on its legendary midrange performance, lifelike transparency, and holographic soundstage depth. Reviewers praise the unit for delivering an organic, liquid presentation that easily rivals the warmth of elite vacuum tubes without sacrificing excellent solid-state bass control. This uncompromising sonic purity earned the design Stereophile magazine's coveted Amplifier of the Decade distinction.

Integrating these reference-grade monoblocks into your audio system represents a definitive commitment to ultimate fidelity and uncompromised musical intimacy. By completely removing the artifacts of typical push-pull designs, this system allows your favorite recordings to breathe with stunning, three-dimensional realism. It serves as a permanent foundation for any reference audio setup designed to bring a live performance into your daily listening experience.
Brand Pass Labs
Type Power Amplifiers
MSRP $12,500.00
SKU # 56716.2
Cosmetic Rating

7 - Good cosmetic condition with some minor visible cosmetic wear.

Functional Notes

Operational condition of this item is excellent, fully tested and no issues found.

Age Unknown
Owners 1
Service History Electronics fully inspected, tested, and serviced at The Music Room July 2026

Pair of amplifiers, Power cables, Factory packaging

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If we fall short of that promise, every pre-owned item comes with 30-day risk-free returns, 90-day buyers protection warranty, and free lifetime technical support so you have the confidence to explore without hesitation.

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Pass Labs Aleph 1 Monoblock Power Amplifiers; Recently Serviced
Pass Labs Aleph 1 Monoblock Power Amplifiers; Recently Serviced