VYGER Atlantis / VYGER INERTIAL / ART USB Phono Plus
A quick measurement at Hi Fidelity Milan, in the CHARIO Academy room. No adjustments were made to the setup.
Measured
Measurement at a glance
The primary record
Values are transcribed from the preserved Groove Scope PDF. Together they form a capture-specific view of primary performance and supporting channel behaviour.
Playback RPM
33.33
Under stylus load
Speed error
−0.01%
vs 33⅓ RPM
DIN-shaped W&F
0.032%
RMS
Channel balance
+0.49 dB
L−R
Avg separation
27.4 dB
1 kHz electrical crosstalk
At the show
100 µm, with the setup unchanged
Without any setup adjustments for this quick show-room measurement, the VYGER Atlantis / BENZ SPJ setup passed the 100 µm step on the test ladder, as reported by Michelangelo Canonico. The newly identified VYGER INERTIAL tonearm was central to the tracking demonstration. Michelangelo Canonico attributes much of the successful 100 µm tracking-ladder performance to this new arm, with no setup adjustments made for the session. This observation is additional session evidence; the supplied PDF documents the separate 1 kHz reference check.
Behind the measurement
A quick check in the CHARIO Academy room
This capture was made at Hi Fidelity Milan on 4 October 2026 at 13:40, using an ART USB Phono Plus with the BENZ SPJ cartridge and VYGER Atlantis turntable. No adjustments were made to the setup for the measurement: this is a record of the system as it was presented in the room.
The successful 100 µm tracking-ladder step was the session’s highlight. Alongside the reference capture, it made for a memorable demonstration of what this complete analogue setup could do under show conditions.
What stands out
Near-nominal speed and steady harmonics
Average speed was 33.33 RPM (−0.01%), with 0.032% DIN-shaped wow and flutter RMS. Channel balance was +0.49 dB and average 1 kHz separation reached 27.4 dB. THD measured 0.96% left and 1.06% right; Groove Scope classified the harmonics as steady during recording and suitable for setup guidance.
Directional crosstalk was −25.9 dB L→R and −28.9 dB R→L, a reported 3.03 dB difference. This gives a useful baseline for a longer follow-up session, while preserving the central fact that the show setup was left untouched.
Tonearm design
VYGER INERTIAL: a major contributor to the tracking result
The newly identified VYGER INERTIAL tonearm was central to the tracking demonstration. Michelangelo Canonico attributes much of the successful 100 µm tracking-ladder performance to this new arm, with no setup adjustments made for the session.
The supplied INERTIAL manual describes a movable counterweight supported by an air bearing and controlled laterally by magnetic forces. The manufacturer explains that this arrangement allows freer lateral movement when following record eccentricity. It also describes a shorter counterweight-to-pivot distance intended to reduce vertical inertia. These design features provide context for the strong tracking demonstration; this single session did not isolate the arm’s contribution from that of the cartridge and turntable.
Design source: the INERTIAL tonearm manual supplied by the measurer on 7 October 2026.
Measurement chain
What is verified
Cartridge and turntable identified in the original report; the measurer subsequently supplied the INERTIAL tonearm manual and confirmed its role in the session. ART USB Phono Plus appears as USB Audio CODEC in the report; its input routing was not recorded.
Cartridge
BENZ SPJ
Turntable
VYGER Atlantis
Tonearm
VYGER INERTIAL
Measurement interface
ART USB Phono Plus
Open technical record
Behind the playback chain
The editorial review connects directly to the source report, structured record, checksums, measurement method and original asset archive.
Every reported numeric result in one place: playback speed, weighted and raw stability, channel behaviour, distortion and the second through fifth harmonics.
Metric
Measured result
Playback speed under stylus load
33.33 RPM
Playback speed error
−0.01% vs 33⅓ RPM
Settled speed range
33.21–33.44 RPM
Settled speed span
0.23 RPM
DIN-shaped wow & flutter RMS
0.032%
Raw speed variation RMS
±0.197%
Raw speed variation, 2-sigma
±0.393%
Raw wow RMS
0.189%
Raw flutter RMS
0.049%
Channel balance, L−R
+0.49 dB
Average channel separation at 1 kHz
27.4 dB
Electrical crosstalk, L→R
−25.9 dB
Electrical crosstalk, R→L
−28.9 dB
Crosstalk directional difference
3.03 dB
Total harmonic distortion
Left 0.96%; right 1.06%
THD difference, L−R
−0.11 percentage points (source report)
Second harmonic (H2)
Left −40.7 dB; right −39.5 dB
Third harmonic (H3)
Left −51.4 dB; right −58.8 dB
Fourth harmonic (H4)
Left −60.7 dB; right −65.2 dB
Fifth harmonic (H5)
Left −65.2 dB; right −68.3 dB
H2 difference summary
Right 1.2 dB higher (source report)
H3 difference summary
Left 7.4 dB higher (source report)
Harmonic reliability
Steady during recording. Suitable for setup guidance.
Unweighted results complement the DIN-shaped measurement. Harmonics were steady during recording. Reported differences retain the source precision and may differ from subtraction of rounded channel values. The tracking-ladder observation is separate from these PDF results.
