* Tight, deep bass, precise, transparent, spatial and dynamic reproduction of music, 
  exact timing with live-character

* Use of professional class A circuits

*  Circuitry without negative overall feedback

* Adjustment of capacity for MM catridges with high-quality code switches

* Adjustment of resistance for MC catridges with high-quality code switches

* Customisable gain for MC catridges

* Ultra high RIAA precision of +/- 0,15dB

* Complex low-noise voltage stabilisation

* Noble, high glossy black acryl front, heavy, massive, solid high-end-casing with

  resonance absorbing polished chrome feet

* All input jacks and output jacks are gold plated

* External plug-in power supply

* Optional external 50VA power supply integrated in heavy,

  massive, stable high-end-casing with high glossy black acryl front (POWER No.48)

* Every device comes along with "its own" original measuring record of the frequency response, 
  further measuring records are available on request 

Specifications:


Gain: MM operation: 117 times / +41,4 dB at 1 kHz (level difference left/right at 1 kHz: <0,1 dB)
          MC operation: 1300 times / +62,3 dB at 1 kHz (level difference left/right at 1 kHz: <0,1 dB)
          (other values of gain are customisable)

Input impedance: MM input: 47,5 kOhms // 30/80/130/180/250/300/350/400 pF (code switches)
                             MC input: 55/66/76/88/100/120/150/200/330/420/475/680 Ohms  (code switches)

Output resistance at 1 kHz: Option: 50 or 475 Ohms

RIAA curve: time constants: 75 µs / 318 µs / 3180 µs

Subsonic filter MC: 5 Hz (-3 dB, 12 dB/Oct.)

 
Subsonic filter MM: 3 Hz (-3 dB, 6 dB/Oct.)

Max. deviation from ideal frequency response: +/- 0,15 dB (measured from 50 Hz to 20 kHz,

                                                                           referenced to 1 kHz)

                                     
Diagram: Typical frequency response

Max. DC offset: +/- 2,0 mV 

Crosstalk: MC operation: 68 dB, MM operation: 86 dB (input 2,2 mVeff / 17 mVeff,

                 opposite input with 40 Ohms loaded, GND connector grounded)

Signal to noise ratio: MC operation: -73 dB, MM operation: -86 dB (A-weighted, ref. to 500 mV,

                                  opposite input with 40 Ohms loaded, GND connector grounded)

Total harmonic distortion (THD+N): MM operation: 0,005 %, MC operation: 0,03 % (1,6 Veff into 10 kOhms,

                                                         at 1 kHz, input floating, GND connector grounded,

                                                         measuring bandwidth 22 Hz - 22 kHz)

                                     
Diagram: Harmonic spectrum with MM-operation at 1 Veff output (1 kHz) 

Dimensions: W 133mm * H 70mm * D 240mm (phono preamp)
                     W 110mm * H 68mm * D 55mm (plug-in power supply) 

Weight: 2,1 kg (RIAA preamp inclusive plug-in power supply)