rothwell9

Signature Two
discrete transistor moving coil phonostage

SignatureTwosmall

“The Signature Two phonostage really impresses”

Hi-Fi Choice
full review

The Signature Two is an audiophile moving coil phonostage employing low-noise discrete transistor circuitry throughout - no op-amps or transformers - and offers variable gain and cartridge load impedance.
discrete transistor circuit
The Signature Two's circuit is the culmination of over 25 years experience in the design and production of audiophile phonostages and is a four-stage design using discrete transistors operating in Class A. The first stage is a low-noise design with adjustable load impedance from 32 ohms to 1100 ohms and gain variable from 52dB to 72dB, load and gain being adjustable independently of each other. This allows a very wide range of low output moving coil cartridges to be handled with optimum performance. A proprietory discrete transistor regulator provides extremely clean power to this first stage to allow the circuit to perform at its best regardless of the quality of the mains electricty supply. The second stage precedes the highly accurate passive RIAA network comprised of low-distortion polypropylene capacitors and audiophile MELF resistors. The third stage is another gain stage before the final stage buffers the output for a low output impedance.
power supply
The on-board power supply is a linear design employing a torroidal transformer, generous-sized capacitors and another proprietory discrete transistor voltage regulator with very low noise. The supply to the all-important first audio stage is further regulated to provide the it with the correct voltage with extremely low noise and ripple - lower than possible with the common off-the-shelf monolithic alternatives. Each stage also has its own local decapitors with carefully routed earth tracks to eliminate ground current interactions with audio grounds resulting in a gloriously clean performance which reveals all the recorded detail with breath-taking realism.
UK manufacture
As with all Rothwell products the Signature Two is designed and built entirely in the UK.

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specifications

gain
input impedance
output impedance
sensitivity for 500mV o/p
headroom
signal/noise
power supply
mains voltage
power consumption
dimensions
weight
 

52dB - 72dB
32 ohms - 1100 ohms
75R
0.13mV - 1.3mV
>20dB
>87dB
internal, linear regulated 24 volts DC
120VAC/235VAC
2W
430 x 250 x 74 mm
4kg
 

How to buy
The cost is 1800 (uk retail) and units can be obtained from our hi-fi dealers (full list) or by contacting Rothwell Audio Products directly by email or telephone (+44 (0)1204 366133) or from the online shop.

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