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Watt’n Potatoes

Authorized dealers for IOTA VX IOTAVX PA40

  • AV.com — online and in-store — Bacup, England, United Kingdom (website)
  • BK — online and in-store — Konolfingen, Bern, Switzerland (website)
  • Fairland Studio — online and in-store — Bochum Ost, Nordrhein-Westfalen, Germany (website)
  • FUTURELAND — online and in-store — Gleizé, Auvergne-Rhône-Alpes, France (website)
  • HiFi Pilot — in-store — Eisingen, Baden-Württemberg, Germany (website)
  • Tivoli Hi-Fi — online and in-store — Hawthorn East, Victoria, Australia (website)
  • Toponil — in-store — Nueil-les-Aubiers, Nouvelle-Aquitaine, France (website)
Potato score: 71.35

71%

IOTA VX IOTAVX PA40 #1
IOTA VX IOTAVX PA40 variant 1
IOTA VX IOTAVX PA40 variant 2
IOTA VX IOTAVX PA40 variant 3
IOTA VX IOTAVX PA40 variant 4
IOTA VX IOTAVX PA40 variant 5
IOTA VX IOTAVX PA40 variant 6
IOTA VX IOTAVX PA40 variant 7

IOTA VX IOTAVX PA40

United Kingdom flag
View at IOTA VX
Bridgeable
XLR Input
  • Stereo Power Amplifier
  • 300W (4Ω, 2 Channels)
  • 600W (4Ω, 1 channel bridged)
  • Toroidal transformer

Information


Discover the IOTAVX PA40, a stereo power amplifier that combines audiophile sound quality with impressive performance. With an output power of 2 x 300 watts, the PA40 is designed to drive even the most demanding speakers with precision, delivering a listening experience of exceptional clarity and depth.

Generously dimensioned toroidal transformer
At the heart of the PA40 is a large toroidal transformer that guarantees a stable and low-noise power supply to ensure consistently high sound quality under all operating conditions. This solid base enables the power amplifier to maintain precise control over the speakers even at high volumes, while always producing a natural sound image..

2 x 300W or 1 X 600W
In addition to the impressive stereo output of 2 x 300W, the IOTAVX PA40 offers a special function: bridged mode (mono mode). In this configuration, it can be operated as a powerful mono power amplifier, delivering up to 600 watts. This option opens up new possibilities for demanding audio applications where extreme power and precision are required. Whether for high-fidelity music enjoyment or for dynamic home theater setups - in mono mode, the PA40 unfolds its full potential and provides an even more intense sound experience..

XLR & RCA inputs
The versatility of the PA40 is reflected in its connection options: It offers both RCA and XLR inputs to ensure optimum compatibility with your preferred audio source. Whether you want to connect a preamplifier or an audio source directly, the PA40 integrates seamlessly into your existing hi-fi system..

Optional: Connect two pairs of speakers
The PA40 opens up new dimensions of sound design for your audio system with the option of connecting two pairs of speakers. This option gives you the freedom to use different speaker sets depending on the occasion or acoustic requirements. This adaptability is complemented by a subwoofer output that allows easy integration of a subwoofer to enrich the sound with voluminous, deep bass..

IOTAVX quality promise
The IOTAVX PA40 combines high-quality components with a well thought-out design to create a listening experience that will satisfy both passionate audiophiles and professional users. Its robust construction promises durability and reliable performance, while its elegant design ensures that it also looks good in any listening environment. Discover a new dimension of listening with the IOTAVX PA40..

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Professional Reviews 71/100

Rating for IOTAVX PA40

Just Okay

Sound Quality

61/100

Build Quality

82/100

Value for Money

97/100

The IOTAVX PA40 delivers a muscular Class AB power boost, pairing 150W per channel with the current reserve to reach 300W into 4 ohms. Paul Rigby highlights its upgrade potential beyond matching IOTAVX components, while balanced XLR inputs and bridgeable mono flexibility make this a compelling foundation for ambitious speaker systems.

What Reviewers Are Saying

"PA40 POWER AMP — A NO-BRAINER HIFI UPGRADE!"

— The Audiophile Man

Pros

Delivers a substantial 150W-per-channel Class AB power upgrade, with 300W into 4 ohms for demanding systems.

Versatile upgrade option for IOTAVX and other integrated-amplifier systems, including the Audiolab 6000A Mk.II.

Strong value endorsement at its asking price.

SOUND QUALITY PERFORMANCE 61/100

The supplied material presents the PA40 primarily as a high-power upgrade, with particular emphasis on its output capability. It offers no direct listening observations on tonal character, resolution, or spatial presentation, so those aspects remain largely undocumented.

Transparency Resolution

52/100

The supplied review extract contains no direct listening comments about clarity, detail retrieval, noise floor, or grain. Its low quoted distortion and high signal-to-noise specifications are promising engineering figures, but the review does not describe how they translate into audible resolution.

Tonal Balance Musicality

52/100

No supplied review passage characterises the PA40's tonal balance, timbre, warmth, neutrality, or musical involvement. Listeners looking for guidance on its voicing will need fuller audition-based commentary.

Dynamics

88/100

The review calls the PA40 a 150W-per-channel Class AB “powerhouse” and positions it as a “serious power boost” for a hi-fi system. Its specified doubling from 150W into 8 ohms to 300W into 4 ohms supports the expectation of useful current delivery, although the extract does not provide a direct listening account of bass grip or transient behaviour.

Soundstage Imaging

52/100

The supplied material does not discuss stage width, depth, image focus, or layering. There is therefore no direct reviewer evidence on the PA40's spatial performance.

Assessments of Build Quality, Usability, and Overall Propositions.

Build Quality

82/100

The PA40 has a purposeful Class AB implementation with RCA and balanced XLR inputs, speaker A/B switching, and bridgeable mono operation. Its 150W-per-channel rating and 300W-into-4-ohms capability suggest a suitably engineered power section, though the supplied review does not assess chassis finish, internal construction, thermal behaviour, or long-term reliability.

Value for Money

97/100

At approximately 928, the PA40 is presented by The Audiophile Man as a “no-brainer HiFi upgrade,” exceptionally strong endorsement for its asking price. The review also notes that it can upgrade systems beyond IOTAVX's own SA40, including an Audiolab 6000A Mk.II, broadening its appeal as an add-on power amplifier.

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Authorized dealers for IOTA VX IOTAVX PA40

  • AV.com — online and in-store — Bacup, England, United Kingdom (website)
  • BK — online and in-store — Konolfingen, Bern, Switzerland (website)
  • Fairland Studio — online and in-store — Bochum Ost, Nordrhein-Westfalen, Germany (website)
  • FUTURELAND — online and in-store — Gleizé, Auvergne-Rhône-Alpes, France (website)
  • HiFi Pilot — in-store — Eisingen, Baden-Württemberg, Germany (website)
  • Tivoli Hi-Fi — online and in-store — Hawthorn East, Victoria, Australia (website)
  • Toponil — in-store — Nueil-les-Aubiers, Nouvelle-Aquitaine, France (website)
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