The Modwright Instruments PH 150 phono stage is now available through BD Audio and has exceeded our expectations with regard to its quality. This really is an ‘end game’ solution sonically and has a wide range of adjustments making it suitable for almost any cartridge. The units are hand-assembled and the build quality is first class in typical ModWright fashion. The first stage provides options for moving magnet or moving coil cartridges and adjustment is provided for gain, resistive loading, capacitive loading, mono/stereo and phase inversion.
The circuit has a passive RIAA equalisation stage and uses supreme quality Lundahl transformers for both MC step-up and output coupling. The gain stage is all-tube operating in pure class-A with zero feedback. The PH 150 is supplied with a dedicated, external power supply for maximum noise rejection and the power supply circuitry incorporates a mute delay with soft start turn-on sequence to ensure extended tube life and superb reliability. The PH 150 also has separate RCA inputs for MM and MC and outputs for single-ended RCA or fully-balanced XLR. The unit and power supply are available in either silver or black finish.
Available with silver or black casework.
Tube compliment: 2 x 6C45, 2 x 6922
Power supply: External, SS rectified and regulated
Inputs: Separate moving coil and moving magnet, RCA
Outputs: RCA or XLR (balanced)
MC gain: Switchable, 60dB, 66dB, 72dB
MM gain: Switchable, 46dB, 52dB, 58dB
MM capacitive loading: Switchable, 100pf, 220pf, 330pf, 470pf, 670pf, 1000pf
MM resistive loading: 47K ohms
MC resistive loading: Switchable, 10, 20, 50, 100, 200, 1K ohms
Frequency response: 20Hz – 20KHz, +/- 0.2dB
Dimensions: Power supply 8″w x 4″H x 10″D, phono stage 17″W x 4″H x 12″D