The fonolab Qvattvor 4x4 Dual Mono MC Step-Up transformer Fonolab, January 10, 2025

The fonolab Qvattvor 4x4 Dual Mono MC Step-Up transformer

fonolab proudly introduces the 2nd generation of the Qvattvor 4x4 Step-Up Transformer

The new Qvattvor 4x4 SUT features a compact steel case in a dual mono configuration.



It offers RCA input connectivity, with outputs available in either XLR or RCA, all while preserving the integrity of the original balanced circuitry.

- Four matched Tamura Step-Up Transformers inside
- New dual mono perfect shielded, reduced-size metal case of a classic design
- Available with XLR or RCA output

The new Qvattvor 4x4 model has been meticulously designed for use with high-performance MC cartridges, catering to audiophiles and professionals who demand the highest level of precision.



This model excels in preserving the full spectrum of detail extracted from the record groove, ensuring an unparalleled listening experience that captures every nuance of the original recording.

The new QVATTVOR 4x4 Dual Mono model has been meticulously designed for use with high-performance MC cartridges, catering to audiophiles and professionals who demand the highest level of precision.

This model excels in preserving the full spectrum of detail extracted from the record groove, ensuring an unparalleled listening experience that captures every nuance of the original recording.

The SUT uses a quartet of specially selected Tamura transformers with a 2% tolerance.

A wider frequency range of 10Hz-110kHz and a very low distortion of less than 0.05% in the range of 20Hz-20kHz at 1mV input are accomplished.

Short signal path, additional shielding, compact design and all the benefits of a balanced solution without unnecessary features.

Specifications:

Input impedance: 0-3 / 40 Ohms
Output impedance: 4k Ohms
Frequency response: 10Hz to 100kHz (+-1.0dB)
Chanel separation: more than 60dB (20Hz-50kHz)
Ratio: 1:36 / 1:10
Phase characteristics: Within 10° (20Hz-50kHz)

Aailable in a Silver Aluminium front panel.

The SUT offers RCA input connectivity, with outputs available in either XLR or RCA.

Press Release Documents

Website Address

https://fonolab.com/
More Press Releases
October 22, 2024
Audeze
Maxwell Wasabi Limited Edition
Powered by Audeze’s latest 90mm planar magnetic drivers, with over 3X the driver area of leading competitors, Maxwell delivers powerful bass and pinpoint precision. The California-made drivers feature patented Audeze technologies including Uniforce™ voice coils, Fluxor™ magnets, and Fazor™ waveguides. Experience class-leading high-resolution audio up to 24-bit/96kHz over USB wired or wireless.
Read more
January 18, 2026
PS Audio
Foundry F12 Subwoofer A NEW ERA LAUNCHES
The Foundry series of subwoofers redefines what is possible in low-frequency reproduction. With the introduction of the Foundry F12, reference-grade bass is no longer limited by room size, placement constraints, or compromise.
Read more
April 17, 2025
PS Audio
PMG Signature Series
For our founder's namesake series, mere iterations or incremental changes to our existing product lines wouldn't suffice. The PMG series has been reconceived from the ground up, leveraging 50 years of expertise in Hi-Fi audio innovation to create an offering that transcends expectation in every way imaginable.
Read more
FOLLOW US