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Pass Labs INT-25
The INT-25 is the integrated for purists: fewer stages, fewer parts, more connection. It takes the spirit of a minimalist Class A amplifier and pairs it with a clean, simple line stage—so the system feels immediate, fast, and emotionally direct.
This is subtraction as a philosophy: remove what you don’t need, elevate what you came for. The result is an integrated that feels alive—especially with efficient loudspeakers and real-world rooms.
The INT-25’s magic is how it communicates nuance at everyday volume. Vocals sit “in the room,” guitars have body and shimmer, and timing feels locked-in without sounding hyped. If you value simplicity, musical truth, and a one-box solution that still feels genuinely high-end, the INT-25 is a beautiful match.
SPECS AT A GLANCE
- Class / Type: Class A, Stereo
- Power: 25 W / 8 Ω (per channel)
- Inputs: 3 | Outputs: 0 | Remote: Yes
- Gain: 29/35 dB | Volume control: 63 dB (1 dB steps)
- Power consumption: 200 W | Weight: 49 lbs
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Professional Reviews 91/100
Deliciously Crispy
Sound Quality
95/100
Build Quality
93/100
Features Connectivity
80/100
Value for Money
89/100
The Class A INT-25 delivers a richly textured, transparent listen with surprising drive, pairing Pass Labs’ minimalist design with a sound that Mark Craven found effortless and Jim Clements described as deeply immersive. Its bass grip, vivid imaging, and smooth treble make it a compelling high-end integrated for listeners who value musical involvement over feature count.
What Reviewers Are Saying
Pros
Delivers exceptional transparency, detail, and musical immersion with a natural, unfatiguing character.
Drives a wide range of speakers with more authority than its 25W rating suggests, with strong bass control and dynamic punch.
Build quality is tank-like, with a thick aluminum chassis, massive heatsinks, and a substantial feel throughout.
Creates a deep, spacious soundstage with precise imaging and strong separation between instruments and voices.
&
Cons
Feature set is very limited, with only three RCA inputs and no XLR, phono stage, or subwoofer output.
Runs hot and consumes significant power, so it needs generous ventilation and is less forgiving in cramped setups.
SOUND QUALITY PERFORMANCE 95/100
Reviewers consistently describe the INT-25 as highly transparent, musical, and emotionally engaging, with a natural flow that keeps attention on the performance rather than the hardware. They repeatedly praise its low noise, fine detail, and the sense that it brings recordings to life without sounding forced or etched.
Transparency Resolution
96/100
Multiple reviews call its transparency astounding and say it resolves musical minutiae with finesse. Reviewers also mention a very low noise floor, clean separation of instruments, and an ability to reveal subtle differences in recordings and tweeters.
Tonal Balance Musicality
95/100
The amp is repeatedly described as natural, rich, and musical, with a sweetness and smoothness that never turns fatiguing. Reviewers also note a slightly warmer, more liquid character that still preserves detail and does not gloss over the recording.
Dynamics
95/100
Despite the modest power rating, reviewers say it drives demanding speakers with ease and behaves like something much stronger. They praise its punch, rhythm, pace, and transient ability, with comments about effortless energy, authority, and strong microdynamic expression.
Soundstage Imaging
94/100
The INT-25 is credited with a deep, wide, and clearly organized soundstage, with rock-solid imaging and good separation between voices and instruments. Several reviewers highlight strong spatial layering and the sense of hearing deeply into the recording, though the emphasis is more on coherence and depth than flashy expansiveness.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
93/100
Reviewers consistently describe the chassis as heavy, substantial, and clearly engineered for the long haul, with massive heatsinks, a thick aluminum cabinet, and serious power-supply heft. The comments are positive and confident, though they focus more on solidity and practical no-nonsense construction than on luxury flourishes.
Features Connectivity
80/100
This is a very stripped-back integrated amplifier: three RCA line inputs, remote volume and source control, and little else. Reviewers explicitly note the absence of XLR, digital inputs, network functions, phono stage, sub outputs, and tape loop, so functionality is intentionally minimal.
Value for Money
89/100
Several reviewers say the price is high, and one calls the rear panel meager for the money, but they also argue that the sound justifies the outlay. Compared with buying separate components that would match its performance, reviewers present it as a strong buy for listeners who prioritize sound over features.
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Verified Dealers
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Authorized dealers for Pass Labs INT-25
- A 10 Audio Room 4 Music — in-store — Amsterdam Nieuw-West, Noord-Holland, Netherlands (website)
- Aalen Hifi — in-store — Schwäbisch Gmünd, Baden-Wurtemberg, Germany (website)
- Acoustic Sounds — online and in-store — Salina, Kansas, United States (website)
- Alen Audio — in-store — Extramurs, Comunidad Valenciana, Spain (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Alta Fedelta — online and in-store — Lombardia, Italy (website)
- Assai Audio — in-store — Centro, Comunidad de Madrid, Spain (website)
- Atelier 13 Audio — in-store — Forest Hills, Tennessee, United States (website)
- Audio & Video Expressions — in-store — Philadelphia, Pennsylvania, United States (website)
- Audio Aktoren — online and in-store — Horten, Vestfold, Norway (website)
and 52 more verified dealers