Stored Category Comparison

7Hz Timeless II vs Truthear Zero Red

This page compares two published iems profiles using stored summaries, source-attributed scoring, and a single lines-only radar for fast visual difference checks.

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7Hz Timeless II
Truthear Zero Red

Category Scores

Stored score comparison

Every score is pulled from the stored product intelligence snapshot for this category pair.

AxisTimeless IIZero RedDelta
Bass
8.1
7.2
-0.9
Mids
7.6
7.8
+0.2
Treble
7.9
6.6
-1.3
Technicalities
8.4
6.9
-1.5
Soundstage
8.2
6.7
-1.5
Value
7.8
7.6
-0.2

Compare To

Compare this iems against another stored profile.

7Hz Timeless II can only be compared against published iems profiles.

Quick Read

7Hz Timeless II

Approved coverage treats the Timeless II as a real second-generation effort rather than a rebadge: the dual-sided 14.5mm planar brings the punchy, fast bass the original was loved for, while the treble extends further and the stage opens up. The consensus verdict is that it is one of the strongest planar IEMs near $229, with the familiar planar caveats: upper-midrange energy that can turn edgy on bright recordings, and a large disc-shaped shell that not every ear tolerates. Compared with the original Timeless, reviewers hear a more refined, more extended, and slightly more expensive-sounding tuning, at a price that moved up alongside it.

Truthear Zero Red

The Zero:RED is a dual dynamic in-ear (a 10mm driver for bass plus a 7.8mm driver for mids and highs) treated across the review record as a budget reference, not a novelty. A measurement writeup found the frequency response a very good match to its preference target with slightly less bass, distortion incredibly low even at 114dB SPL and improved over the original Zero, and sensitivity on the low side for an IEM, then added it to a measurement based recommended list. The midrange is where accounts converge: vocals are called clear, natural, and clearly defined, with enough upper-mid presence to push voices forward without harshness. The low end is sub-bass weighted, and the drop into the mid-bass gets credit for keeping instrument timbre clean, though one review hears a brief light slam followed by a prolonged decay and calls the upper bass short on definition. Treble is agreed to be safe and never bright, but reviewers split on whether that costs it air: one hears a significant roll-off above an 8kHz lift with no sparkle, another hears no sense of the upper ranges dropping off a cliff. Staging is called average in several accounts and above average in one. The sharpest split is source pairing: one review reports the set does not scale with high end gear and tells buyers not to stress about it, while another found the sound varied enough with amplifiers to withhold a general recommendation. The long nozzles are a non-issue for some ear shapes and an irritation for others. The accessory bundle, including a 10 ohm inline resistor that raises bass, is unusually complete here.

7Hz • IEMs

7Hz Timeless II

Open page

Approved coverage treats the Timeless II as a real second-generation effort rather than a rebadge: the dual-sided 14.5mm planar brings the punchy, fast bass the original was loved for, while the treble extends further and the stage opens up. The consensus verdict is that it is one of the strongest planar IEMs near $229, with the familiar planar caveats: upper-midrange energy that can turn edgy on bright recordings, and a large disc-shaped shell that not every ear tolerates. Compared with the original Timeless, reviewers hear a more refined, more extended, and slightly more expensive-sounding tuning, at a price that moved up alongside it.

Strengths

  • Fast, punchy planar bass with strong control and impact
  • Improved treble extension and openness over the original Timeless
  • Wide, immersive staging for a planar IEM at this price

Weaknesses

  • Upper mids can sound harsh or intense on brighter tracks
  • Large disc-style shells remain a fit gamble for smaller ears
  • Price moved up versus the original, thinning its value edge

Truthear • IEMs

Truthear Zero Red

Open page

The Zero:RED is a dual dynamic in-ear (a 10mm driver for bass plus a 7.8mm driver for mids and highs) treated across the review record as a budget reference, not a novelty. A measurement writeup found the frequency response a very good match to its preference target with slightly less bass, distortion incredibly low even at 114dB SPL and improved over the original Zero, and sensitivity on the low side for an IEM, then added it to a measurement based recommended list. The midrange is where accounts converge: vocals are called clear, natural, and clearly defined, with enough upper-mid presence to push voices forward without harshness. The low end is sub-bass weighted, and the drop into the mid-bass gets credit for keeping instrument timbre clean, though one review hears a brief light slam followed by a prolonged decay and calls the upper bass short on definition. Treble is agreed to be safe and never bright, but reviewers split on whether that costs it air: one hears a significant roll-off above an 8kHz lift with no sparkle, another hears no sense of the upper ranges dropping off a cliff. Staging is called average in several accounts and above average in one. The sharpest split is source pairing: one review reports the set does not scale with high end gear and tells buyers not to stress about it, while another found the sound varied enough with amplifiers to withhold a general recommendation. The long nozzles are a non-issue for some ear shapes and an irritation for others. The accessory bundle, including a 10 ohm inline resistor that raises bass, is unusually complete here.

Strengths

  • Frequency response measures as a very good match to a Harman style preference target, with just slightly less bass than the target curve
  • Distortion measures incredibly low even at 114dB SPL, a clear improvement over the original Zero
  • Midrange is the standout: vocals read as clear, natural, and vividly toned, with upper mids present without harshness
  • Sub-bass carries the low end while the mid-bass steps back, so instruments keep natural timbre
  • Complete accessory set: seven tip sets, detachable 2-pin cable, pouch, spare nozzle meshes, and a 10 ohm bass boost adapter
  • Lightweight 3D printed shells that several accounts found comfortable across long listening sessions

Weaknesses

  • Treble is deliberately safe and never bright, and one review finds it rolls off significantly above 8kHz with no airiness or sparkle
  • Unusually long, wide nozzles leave the housing protruding for some ear shapes and complicate tip matching
  • Bass can read thick: one account describes a brief light slam followed by a prolonged decay and upper bass short on definition
  • Soundstage depth is limited in several accounts, and imaging is called somewhat indistinct in one
  • Sensitivity measures on the low side for an IEM, and one review reports weak bass presence and dynamics at low volume on some amps
  • No microphone and no remote button, so it cannot double as a phone headset