Fonolab Qvattvor 4x4 Second Generation Now with Dual Mono Design and Tamura Transformers
Czech audio manufacturer Fonolab has unveiled the second generation of its Qvattvor 4×4 Dual Mono step-up transformer designed for moving coil (MC) cartridges. This new transformer adopts a dual mono configuration and is housed in a compact steel casing. Specifically, it's composed of two separate enclosures for the transformers in each channel, connected by a common aluminum front panel.
As many of us appreciate, an MC transformer is a passive device that boosts the weak signal from an MC cartridge to the level of a moving magnet (MM) cartridge. This allows for the use of MM phono preamps with MC cartridges, enhancing compatibility across different audio setups.
The Fonolab Qvattvor 4×4 Dual Mono is equipped with both balanced XLR connectors and unbalanced RCA analog outputs. Embracing a fully balanced topology, each channel operates with two transformers, which contributes to superior signal integrity and channel separation. The circuitry incorporates audiophile-grade transformers from the renowned Japanese company Tamura, known for their exceptional build quality and performance.
Technical Specifications of the Fonolab Qvattvor 4×4 Dual Mono:
- Input Impedance: 0–3 Ω / 40 Ω
- Output Impedance: 4 kΩ
- Frequency Response: 10 Hz to 100 kHz (±1.0 dB)
- Channel Separation: >60 dB (20 Hz–50 kHz)
- Gain Ratio: 1:36 / 1:10
The meticulous design ensures optimal shielding by housing each channel in its own enclosure. This attention to detail caters to audiophiles seeking high-end performance and unparalleled precision in their vinyl playback systems.
