KAB PS-1200

   The PS-1200 is designed to replace the internal power source of the Technics SL-1200 MK2, 3 or 5 series turntables.

    The PS-1200 provides a very clean, stiff regulated DC voltage. This eliminates three sources of sonic contamination: The electromagnetic field and mechanical vibration of the internal transformer; and the large peak-to-peak ripple voltage of the internal powersupply.

   The turntable plays quieter and the rotational stability is enhanced because the 1200's internal regulator can now concentrate exclusively on regulating the load of the motor.

    The KAB PS-1200 features quiet, low radiation toroid power transformer, large reservoir capacitance, well heat sinked regulator and resonance damped steel chassis. Power is via IEC connector. Electronic SENSE switching detects the original power switch for on-off control. Available in both 120V and 220V AC Versions.

Note: Installation of this product requires basic electronic skills including soldering. You should refer to qualified personnel if this is outside your comfort zone..

Price & Purchase

SPECIFICATIONS

• 34V Regulated Output Voltage
• 4700 uF Reservoir Capacitor
• 2 Output Lines
• Amveco Toroid Transformer
• Supply Line Noise: < 10mv
  
• SENSE Line For Power Switch Detection
• Shipping Weight: 4 Lb.
• Dimensions : 4.5" X 7.25" X 2.25"

    The 1200 original power supply has very little reservoir capacitance, 470 uF. The bulk of the supply filtering is performed by the DC regulator, doubling as a capacitance multiplier. These circuits are common, but they are not optimum.

   By incorporating a large reservoir capacitor and linear voltage regulator, the DC leading into the 1200 is now a clean source of power. This lets the internal regulator do a better job of regulating the motor load.

Also, since the internal power transformer, is deactivated, an additional source of EMI and mechanical vibration is eliminated. The turntable plays quieter.

    All steel construction wards off the effects of stray magnetic fields. The chassis is damped to reduce resonance.

• 1 Year Warranty
• Quiet Amveco Toroid Power Transformer
• 2 DC Output Lines
• SENSE Line For Power On-Off
• IEC Power Inlet
• 120V And 220V Available
• Resonance Damped Steel Chassis

    Sure, the 1200 is a great turntable. World class if you ask us. But there is always room for improvements. The power supply has always concerned me. Technics goes through great pains to make the transformer quiet. The laminations are braze welded, and the entire unit is encased in solid rubber, even wrapped with hi-silicon steel to contain EMI. Brand new they are very quiet. Over time however they can develop a buzz.
Since the PS-1200 is external, all sources of mechanical and electrical interference are eliminated. The 'table plays quieter.

    The SENSE line detects the power switch of the main table. This way you turn the power on and off just like you do now. The PS-1200 can power 2 turntables -but not at the same time. When the main turntable is Off, power is available at the second turntable. It is an alternating power arrangement.