Hi End Audiophile Quality Sugden Signature 41 Preamplifier and Signature P41 Power Amplifier Top End Quality Hi-Fi

Huge power from the Class AB Amplifier 100W 8ohm


The Sugden Signature 41 series is a vintage pre-amplifier and power amplifier combination known for its natural, detailed, and non-fatiguing "Sugden" sound. Unlike many of Sugden's famous pure Class A designs, the Signature 41 power amplifier is a high-output model rated at 100 watts per channel into 8 ohms. 



Sugden Signature 41C Pre-Amplifier

The matching pre-amplifier, often designated as the 41C, focuses on versatility and ease of use. 

Inputs: Features five line-level inputs, including a dedicated tape loop.

Phono Options: Can be equipped with optional "plug-in" phono boards for either Moving Magnet (MM) or low-output Moving Coil

Sugden Signature 41 Power Amplifier

The power amplifier is designed to be slimline and easy to accommodate while providing significant driving power. 

Power Output: Delivers 100 watts into 8 Ohms and up to 190 watts into 4 Ohms.

Design: Features a slimline chassis with careful attention to heatsink design and transformer specification to maintain a healthy performance without excessive heat.

Sound Profile: Described by users as typically Sugden—fatigue-free, detailed, and organic, making records sound like a live musical performance rather than just

Comparison with Classic Sugden Series

While the Signature 41 series offers more power for difficult speaker loads, it differs from the more common A21 Signature series: 

A21 Signature: A pure Class A integrated amplifier delivering roughly 23–30 Watts.

Signature 41: A more powerful, potentially Class AB design offering 100 Watts, suitable for audiophiles needing more authority and control for larger rooms

Inputs: Five line level (or four on specific integrated models), optional MM/MC phono stage.

Outputs: Pre-out (variable), tape out (fixed), stereo multi-way binding posts.

Line Input Sensitivity: 170mV for maximum output.

Phono Input Sensitivity: 3mV (MM), 0.2mV (MC) for maximum output.

Phono Loading: MM 47K, MC 470 Ohm (some models 100 Ohm).

Bandwidth: 6Hz-200kHz.

Signal to Noise: >83dB.

Dimensions: 92 x 430 x 350mm (hwd).