Hattor Audio’s Ultimate Passive Pre is built with a choice of resistors, with cost-no-object attention to detail, and sound quality that rivals anything you choose.  With only two resistors in the signal path, you’ll hear every detail without the brightness and distortion of many “revealing” preamps. 

The Ultimate Passive Pre can be configured with four different types of resistors, different finishes, with RCA/XLR connectors, with an optional active buffer, and with a separate vacuum tube gain section.

– 64 steps (1dB/step)
– true dualmono design allowing for balance adjustment
– switchable between stereo and dualmono mode
– remote control for all functions - volume L/R, source, power, 5 dim settings
– constant input impedance 
– available resistors: SMD Vishay, AMRT Amtrans, AMRG Amtrans 

– no switching noise
– 3 years warranty
– available finish: silver, carbon, wood or plain black
– delivered in a flight case 
– optional active OPAMP or tube preamp stage 
– designed and hand made in Poland 

5 inputs and 4 outputs free configurable (RCA or XLR)

Neutrik XLR connectors

CMC RCA sockets

Optional Home theater input



Vishay SMD        $900 (RCA)
$1000 (XLR)
AMRT      $1500 (RCA)
$1600 (XLR)
AMRG Trans       $1700 (RCA)
$1900 (XLR)
Optional OPamp active stage switchable with remote. Thre gain settings selectable +3/6/9 dB
With OPA2134 - $450
With NewClassD opamp - $600

Shipping with UPS
: Europe $49, North Amer. $59, Asia $69, Africa, Australia, South Amer. - $79