Series 7 R

Input Stage:
Single ECC83 (12AX7) dual-triode vacuum tube for voltage amplification.
Output Stage:
High-quality MOSFETs for current amplification and speaker drive.
Topology:
Minimalist hybrid design: tube input, MOSFET output.
Power Output:
45–50 watts per channel into 8 ohms (stereo configuration).
Construction:
Hand-wired, point-to-point assembly; no printed circuit boards.
Shared chassis design with other Croft models to reduce cost.
Inputs/Outputs:
Pair of RCA input jacks, output binding posts for speakers.
Sound/Performance:
Prioritises musicality, inner detail, and control.
Performs best with speakers of ~90dB sensitivity or higher.
Physical Characteristics:
Relatively lightweight due to a modest transformer and minimalist construction.
Typical Use:
Suitable for moderate to high-sensitivity speakers, both budget and high-end systems.
Summary:
The Series 7 is a minimalist stereo hybrid amplifier with a tube input and MOSFET output, designed for high musicality and value. The Series 7R is a monoblock, regulated version with a larger power supply and additional voltage regulation, offering enhanced channel separation, control, and sonic refinement.