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Headphone Control and Amplification MA18 HEADPHONE VOLUME CONTROL Features • • • • • • • Add headphone output to Amplifiers not equipped with that facility. Connects to speaker outputs Automatically switches speakers “off” when headphone jack is inserted. Controls headphone volume Machined from solid brass and nickel silver plated connectors (4mm) Silver plated switch contacts Size (mm): 110 (w) x 55 (h) x 120 (d) Features • • • • • • • • • • • Amplifies line level output to drive upto two pairs of headphones Output 2 Watts R.M.S. per channel Channel separation : 60 dB Input impedance : 10K Signal to noise : 70 dB Volume control Balance control Connects to tape loop or Pre-Amp output 12 volt D.C. 500 mA power supply required Gold plated phono sockets Size (mm): 160 (w) x 55 (h) x 120 (d) Features • • • • • • Converts a line level input to accept a moving magnet phono cartridge Full R.I.A.A. equalisation Input Sensitivity @1khz 5mV in gives 175mV out = 31dB gain Input Impedance 47kΩ / 150pF 9 volt battery (PP3 type) or 12 volt D.C. power supply required Size (mm) : 210 x 38 x 38 • • • • • • Allows a C.D. player to be connected directly to a suitable Power Amplifier Pro-grade close tolerance potentiometer Self cleaning nickel silver switch contacts Independent earth wiring Gold plated phono sockets Size (mm): 110 (w) x 55 (h) x 120 (d) • • • • • • • • • • • • Adds stereo microphone input capabilities Switched gain : Hi = x200 , Lo = x40 Switched impedance : Hi = 10K , Lo = 600R Signal to noise : Better than 60 dB Maximum output voltage : 250 mV Overload margin : 20 dB Level control Balance control Connects to tape loop or Pre-Amp output 12 volt D.C. 500 mA power supply required Gold plated phono sockets Size (mm): 160 (w) x 55 (h) x 120 (d) MB45 HEADPHONE AMPLIFIER Pre-Amplifiers DS-1 DISCSAVER MA34 C.D. PASSIVE PRE-AMP Features MB46 MICROPHONE AMPLIFIER Features 3