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Audio Note IO I

Cartridge

Relative price

above typical

Among the 89 cartridges in the catalogue, this one is above typical.

A band places a component against its peers and carries no price. It is deliberately the only price indicator on this page: a second one, measured against a different set, would narrow the two together far enough to give the figure away.

What it is

ASC-2 parity entry. Chain: IO → SUT (AN-S3, ~1:40 UNVERIFIED) → MM stage at high gain; gain budget worked [9360][13830]. Alnico-magnet IO I (not the field-coil Ltd) [445].

At 0.04 mV the noise floor is the limiting factor, not drive — SUT siting/shielding critical [3051].

Competition record

Assessed against 17 rivals across the sixty systems: it takes the slot in none of its 120 head-to-heads.

Where it gives ground

The dimension the engine names as the weakest link, counted across every head-to-head it lost.

  • quietness at rest ×26
  • speed stability ×24
  • low-level clarity ×10
  • rhythmic grip ×2

Who it comes up against

van den Hul The Frog

38 lost · Anchored, Artisan, BBC Sound, Cavity-Native, Characterful, Intimate, PRaT, Reference, Romantic, Twin Arms

Against the Anchored brief, the van den Hul The Frog keeps the slot decisively.

With the Musical Fidelity M8x Vinyl, the pairing gives up most on quietness at rest.

With the Vertere Groove Runner X, the pairing gains most on bass control.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

ebb and flow of dynamic shading easily discernibleEnjoy the Music (Rochlin) 2007
ebb and flow of dynamic shading easily discernibleEnjoy the Music (Rochlin) 2007

van den Hul The Crimson

29 lost · Anchored, BBC Sound, Cavity-Native, Characterful, Intimate, PRaT, Reference, Romantic, Twin Arms

Against the Characterful brief, the van den Hul The Crimson keeps the slot decisively.

With the Musical Fidelity M8x Vinyl, the pairing gives up most on low-level clarity.

With the Vertere Groove Runner X, the pairing gains most on bass control.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021

Goldring Eroica HX MC

8 lost · Silent Path

Against the Silent Path brief, the Goldring Eroica HX MC keeps the slot decisively.

With the Whest Audio 60Se Pro, the pairing gives up most on quietness at rest.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

It sits well above the share of the budget this brief aims at the cartridge position.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Hana EL MC

8 lost · Anchored, Characterful, Intimate, Romantic

Against the Anchored brief, the Hana EL MC keeps the slot decisively.

With the Rega Aria Mk3 MM/MC, the pairing gives up most on quietness at rest.

With the ProJect Tonearm 8.6 Carbon (Debut PRO), the pairing gives up most on speed stability.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the pairing with the Rega Aria Mk3 MM/MC gives up quietness at rest under the Anchored weighting.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
remarkable job tracing groovesPositive Feedback (Gibbs) 2018
locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
remarkable job tracing groovesPositive Feedback (Gibbs) 2018

Sumiko Blue Point No.3 Low MC

8 lost · Artisan, Cavity-Native, PRaT, Reference

Against the Artisan brief, the Sumiko Blue Point No.3 Low MC keeps the slot decisively.

With the Rega Aria Mk3 MM/MC, the pairing gives up most on quietness at rest.

With the ProJect Tonearm 8.6 Carbon (Debut PRO), the pairing gives up most on speed stability.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the pairing with the Rega Aria Mk3 MM/MC gives up quietness at rest under the Artisan weighting.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021

van den Hul The Colibri

6 lost · Artisan, Reference

Against the Artisan brief, the van den Hul The Colibri keeps the slot decisively.

With the EAR Yoshino 88PB MM/MC, the pairing gives up most on quietness at rest.

With the Vertere Groove Runner X, the pairing gains most on bass control.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021

Etsuro Urushi Gold MC

4 lost · Vocals-First

Against the Vocals-First brief, the Etsuro Urushi Gold MC keeps the slot by a whisker.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

Etsuro Urushi Cobalt Blue MC

4 lost · Vocals-First

Against the Vocals-First brief, the Etsuro Urushi Cobalt Blue MC keeps the slot by a whisker.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

van den Hul MC One Special

3 lost · Romantic, Twin Arms

Against the Romantic brief, the van den Hul MC One Special keeps the slot decisively.

With the Rega Aria Mk3 MM/MC, the pairing gives up most on quietness at rest.

With the Technics S-shape magnesium tonearm (SL-1200G), the pairing gains most on bass control.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the pairing with the Rega Aria Mk3 MM/MC gives up quietness at rest under the Romantic weighting.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

almost total lack of groove noise and distortionSoundStage! (Lyle) 2001
almost total lack of groove noise and distortionSoundStage! (Lyle) 2001

Linn Kendo MC

2 lost · Twin Arms

This cartridge’s output is far below what the phono stage’s input can work with — without a step-up this is not a real system.

Ortofon MC Quintet Black S

2 lost · Vocals-First

Against the Vocals-First brief, the Ortofon MC Quintet Black S keeps the slot by a whisker.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

It sits well above the share of the budget this brief aims at the cartridge position.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Rega Nd3 MM

2 lost · Silent Path

Against the Silent Path brief, the Rega Nd3 MM keeps the slot decisively.

With the Rega Aria Mk3 MM/MC, the pairing gives up most on quietness at rest.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

It sits well above the share of the budget this brief aims at the cartridge position.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Linn Koil MC

2 lost · BBC Sound

Against the BBC Sound brief, the Linn Koil MC keeps the slot decisively.

With the Rega Aria Mk3 MM/MC, the pairing gives up most on low-level clarity.

With the ProJect Tonearm 8.6 Carbon (Debut PRO), the pairing gives up most on speed stability.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the pairing with the Rega Aria Mk3 MM/MC gives up low-level clarity under the BBC Sound weighting.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021
locks the band togetherTNT-Audio (Graeme Budd), IO 1 review, Mar 2021

Koetsu Azule Platinum MC

1 lost · Twin Arms

Against the Twin Arms brief, the Koetsu Azule Platinum MC keeps the slot decisively.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Koetsu Onyx Platinum MC

1 lost · Twin Arms

Against the Twin Arms brief, the Koetsu Onyx Platinum MC keeps the slot decisively.

On its own merits the Audio Note IO I is the weaker cartridge for that brief.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Goldring Eroica LX MC

1 lost · Twin Arms

Against the Twin Arms brief, the Goldring Eroica LX MC keeps the slot decisively.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the way it sits with the rest of this system under the Twin Arms weighting.

It sits well above the share of the budget this brief aims at the cartridge position.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

Goldring 1042 MM

1 lost · Twin Arms

Against the Twin Arms brief, the Goldring 1042 MM keeps the slot decisively.

On its own merits the Audio Note IO I is the stronger cartridge — but it loses here on fit: the way it sits with the rest of this system under the Twin Arms weighting.

It sits well above the share of the budget this brief aims at the cartridge position.

One honest caution: this pairing runs the phono stage near its limits — quietness suffers.

What the reviewers said

locks the band together TNT-Audio (Graeme Budd), IO 1 review, Mar 2021· Timing precision
drums more human... double bass deeper TNT-Audio (Budd), IO 1 review· Tonal body
double bass sounding deeper TNT-Audio (Budd), IO 1 review· Bass extension
out of this world Jeff's Place / Positive Feedback — IO I + AN-S4 system review· Harmonic texture
musicality and natural tonal characteristics Deco Audio / BD-Audio dealer record + owner consensus· Micro-dynamic resolution
25dB channel separation at 1kHz SPEC: channel separation 25dB @1kHz (manufacturer)· Spatial naturalness

How it scores

Voice

  • Tonal body 76 from listening evidence
  • Harmonic texture 74 from listening evidence
  • Spatial naturalness 70 from listening evidence

Rhythm

  • Timing precision 76 from listening evidence

LowerVolume

  • Micro-dynamic resolution 72 from listening evidence

Specifications

cartridge typeMC
output mv0.04
internal impedance ohm1.0
recommended load ohm29
compliance dynamic um per mn8.5/17
weight g11.0
cantilever materialtitanium
channel separation db25.0
notes