Fonolab Super Quattvor step up transformer

Features
 
True balanced configuration
New damped steel case
Two matched pairs isolated transformers in MC section selected by a quartet
A wide frequency range of 10Hz-120kHz and a very low distortion of less than 0.05% in the range of 20Hz-20kHz at 1mV input
Optional MM 1:2 Step-Up transformer module
Minimal internal wiring
Silver-plated Neutrik XLR sockets for balanced source
Gold-plated RCA phono sockets with Teflon insulation for two inputs and two outputs
 
Designed and manufactured in Czechia
Exterior design by Jan Snegov
Specifications:
 
Input impedance: 0-5 / 40 Ohms
Output impedance: 4k Ohms
Frequency response: 10Hz to 120kHz (+0.5dB–1.0dB)
Channel balance: within 0.5 dB
Ratio: 1:33 / 1:10
Phase characteristics: Within 10° (20Hz–50kHz)
 
Optional MM/MI module
DC Resistance (primary): 1000 Ohms
DC Resistance (secondary): 2000 Ohms approx
Frequency response: 5Hz to 100kHz (+-0.5dB)
Ratio: 1:2