Rothwell — Analogue accessories
MCX Moving Coil Step-Up Transformer
Precision transformer coupling for high-output moving coil cartridges.
The MCX bridges the gap between high-output moving coil cartridges and standard moving magnet phono-stages with effortless precision. Built upon the same world-class Lundahl cores as the reference-grade MCL, this model is optimised specifically for cartridges producing signals in the 0.6mV to 0.9mV range, ensuring perfect electrical matching and superior signal transfer.
Positioned within the Rothwell transformer range as a refined alternative for specific cartridge requirements, the MCX embodies our commitment to pure, passive signal management. By avoiding active gain stages, it eliminates the potential for electronic noise and harmonic colouration, allowing the listener to experience the full character of the recording without compromise.
Sonically, the MCX is celebrated for its wide bandwidth and exceptional linearity. It delivers a sound that is balanced and harmonically rich, with a quiet background and an expansive, stable soundstage. The result is a performance that feels natural and unforced, providing the transient speed and resolution necessary for high-end vinyl playback.
Key Features
01
Lundahl transformer coupling
Features high-quality Swedish Lundahl cores that ensure extreme bandwidth and minimal distortion.
02
Optimised turns ratio
The 1:10 ratio is precision-engineered to provide 20dB of gain, perfectly suiting higher-output moving coil cartridges.
03
Advanced hum rejection
Employs multiple primary and secondary windings specifically configured to cancel external electromagnetic interference.
04
Low-capacitance design
Advanced winding techniques minimise inter-winding capacitance to maintain crisp, ringing-free transients.
Chapter 01
Design & Philosophy
The MCX is born from the understanding that different cartridges require bespoke matching to sound their best. While low-output designs often necessitate high ratios, higher-output cartridges can become overly sensitive to gain, leading to saturation. The MCX provides the exact 1:10 ratio required to keep these cartridges performing within their ideal parameters.
Chapter 02
Build & Materials
Each unit is housed in a substantial steel enclosure that serves both as a robust mechanical foundation and a shield against environmental noise. Every component is selected for its longevity and performance, ensuring that the signal path remains pristine from the moment it leaves the cartridge until it reaches your phono-stage.
Chapter 03
Sonic Signature
Listeners can expect a presentation that is both technically precise and musically rewarding. The MCX is noted for its ability to lower the noise floor, revealing subtle details and textures that are often obscured by active electronics, all while maintaining the tonal balance and natural warmth of the original performance.
Specifications
Turns ratio1:10
Voltage gain20dB (x10)
Core materialcobalt based uncut amorphous strip
Input impedance100 ohms
Optimum load impedance47k + 150pF
Bandwidth8Hz - 75kHz (+0/-3dB)
cartridge compatibility (o/p)0.35mV - 0.9mV
cartridge compatibility (imp.)internal impedance <20 ohms
Dimensions60 x 155 x 92 mm
Weight580g