














19 Hours
594
11
$1,295.00
Note: KSL, its service providers, and the seller receive data from this message. See our Privacy Notice and TOU for details.
Venmo
Zelle
PayPal
ApplePayHigh‑Current • Fully Balanced • Made in USA
If you know McCormack, you know this is the real thing. The DNA‑255 is a true high‑current, dual‑mono powerhouse designed by Steve McCormack at the height of the brand’s reputation. Built to drive any loudspeaker with ease, the DNA‑255 combines brute force with finesse—iron‑fisted bass control, explosive dynamics, and a refined, musical top end that never turns harsh.
This is not a lightweight modern amp chasing specs on paper. The DNA‑255 is a serious, overbuilt, audiophile reference designed to last decades and deliver effortless realism at any volume.
Sound Signature - Massive, authoritative bass with exceptional grip
Whether you’re running demanding planar magnetics, low‑impedance towers, or high‑efficiency speakers, the DNA‑255 remains composed, powerful, and musical.
Key Features - 255 watts per channel into 8Ω
Specifications - Power Output:
Why the DNA‑255? The DNA‑255 sits in the sweet spot of McCormack’s lineup—more refined and authoritative than the earlier DNA‑1 series, yet still possessing the raw, musical energy that made McCormack legendary. It’s an amp that disappears into the system and simply lets the music happen.
If you’re building a serious two‑channel system or upgrading from mid‑fi power, this amplifier is a destination piece, not a stepping stone.
KSL Classifieds makes it easy to buy and sell with peace of mind. Check our safety tips and quickly report anything that doesn’t look right to keep your experience smooth and secure.












19 Hours
594
11
$1,295.00
Note: KSL, its service providers, and the seller receive data from this message. See our Privacy Notice and TOU for details.
KSL Classifieds makes it easy to buy and sell with peace of mind. Check our safety tips and quickly report anything that doesn’t look right to keep your experience smooth and secure.















Venmo
Zelle
PayPal
ApplePayHigh‑Current • Fully Balanced • Made in USA
If you know McCormack, you know this is the real thing. The DNA‑255 is a true high‑current, dual‑mono powerhouse designed by Steve McCormack at the height of the brand’s reputation. Built to drive any loudspeaker with ease, the DNA‑255 combines brute force with finesse—iron‑fisted bass control, explosive dynamics, and a refined, musical top end that never turns harsh.
This is not a lightweight modern amp chasing specs on paper. The DNA‑255 is a serious, overbuilt, audiophile reference designed to last decades and deliver effortless realism at any volume.
Sound Signature - Massive, authoritative bass with exceptional grip
Whether you’re running demanding planar magnetics, low‑impedance towers, or high‑efficiency speakers, the DNA‑255 remains composed, powerful, and musical.
Key Features - 255 watts per channel into 8Ω
Specifications - Power Output:
Why the DNA‑255? The DNA‑255 sits in the sweet spot of McCormack’s lineup—more refined and authoritative than the earlier DNA‑1 series, yet still possessing the raw, musical energy that made McCormack legendary. It’s an amp that disappears into the system and simply lets the music happen.
If you’re building a serious two‑channel system or upgrading from mid‑fi power, this amplifier is a destination piece, not a stepping stone.











