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Article Index
McIntosh MT-5
p2
p3 Sound Quality
p4 Sound Quality
p5 Conclusion
p6 Measured Performance
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MEASURED PERFORMANCE

The MT5 ran slow in initial tests but after run in settled at +1.6% fast. However, speed is adjustable so this was corrected before use. 

Over a long period wow (speed variation below 10Hz) consistently measured 0.15% (DIN peak) and when weighted dropped to 0.08% – good and typical of high quality belt drive.  Our spectral analysis of demodulated Wow & Flutter from a wow & flutter meter shows basic rate wow at 33rpm (0.55Hz) was responsible, usually caused by hub or bearing eccentricity. There was no flutter, the analysis shows.

In conjunction with the Sumiko Blue Point cartridge fitted, our arm vibration analysis shows a stiff and well damped arm tube and headshell, free from the usual tube arm bending (ringing) modes, the main one being around 200Hz with aluminium – very well suppressed in this analysis.

The Sumiko Blue Point moving coil cartridge had strongly rising treble, sufficient for there to be a little obvious brightness in use, likely heard as top end ‘sting’. Tracking was very good, so the sound will be stable and confident.

The MT5 worked well in all areas. It offers a good basic performance, with easily selected, adjustable speed. NK

 

Speed  -           +1.6%

Wow   -             0.15%

Flutter   -          0.04%

Total  -             0.08%

 

 

 

ARM VIBRATION

 

 

 

 

SPEED VARIATIONS (WOW & FLUTTER)

 

 

 


 

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