Ever since the appearance of the TD-124, people have been engaged in endeavours to "silence" the motor. The first serious attempt was by Thorens own engineers by means of the double suspensionrubbers. Recently the members of the Audio Team (H.A.T) developed a spring modification for any TD-124, which offers a dramatic improvement over any decoupling solution so far. Apart from taking the motor out of the turntable altogether which, of course, is turning system integrity upside down . Below you see  pictures and measurements of four different versions of motor decoupling.


Thorens TD-124 MKI motor suspension with single suspension rubbers

MK1

Metingen MK1Motor vibration 100 Hz at -57 dB





Thorens TD-124 MKII with double suspension rubbers

MK2


Metingen MK2

Motor vibration 100Hz at  -63 dB

An improvement of 6 dB over the MKI version

 

 

Thorens TD-124 with silicon gel pad suspension

MK 2 silicon

 

Metingen MK2 silicon
Motor vibrations 100 Hz at -67dB
An improvement of 4 dB over the MK II version


 

Thorens TD-124 with spring decoupling

MK2 HAT springs


Metingen MK2 springs
Motor vibration100Hz at -76 dB
An improvement of 9 db over the silicon gel damping.