Modwright

SWL 9.0SE Tube Linestage Preamplifier
Technical Specifications
Tube Complement: (2) 5687 tubes.
Gain: ~15dB.
Input Impedance: 50Kohm.
Output Impedance: ~600ohm.
Frequency Response: 17Hz – 100Khz +/-1dB
Noise Level: -122dB.
Weight: 25 lbs. (30 lbs. shipped).
Dimensions: 17”W x 12”D x 4”H.
Basic Specifications:
(4) stanard inputs (One monitor input), (2) sets of main outputs and (1) tape out.
Remote control Volume and Mute, Power, Input Select, Home Theater Bypass loop (HT/BP) and tape/monitor loop. Power and input select are not remote controlled.
Design Information:
Power Supply: Choke input current regulation, DC heaters, discrete B+ voltage regulation.
Gain Stage: Fixed battery bias, ‘Mu’* type gain/buffer stage.
Power Sequence: Mute-on delay turn-on sequence with soft-start B+ supply.
Volume Control: Remote Control Alps motorized volume potentiometer.