MP 1200 / 1800 Power Amplifier CHANNEL A ON CHANNEL B (BRIDGE) 4 5 3 OFF POWER PROTECT BRIDGE CHA PEAK CHB PEAK 7 8 2 9 1 0 10 LEVEL Operating Manual 4 6 5 6 3 7 1 9 8 2 0 10 LEVEL
POWER AMPLIFIER The WHARFEDALE Wireless Works was established in 1932 by Gilbert Briggs who soon established a reputation as one of the most innovative loudspeaker engineers of his generation. His company was at the leading edge of an exciting new technology which was dedicated to bringing the pleasure of music and entertainment into people's homes.
POWER AMPLIFIER PLEASE READ IMPORTANT INSTRUCTIONS BEFORE USING THE AMPLIFIERS! SAFETY INSTRUCTIONS To reduce the risk of electric shock the user should not remove the cover. All operating and safety instructions should be fillowed. The unit should be kept clear of water, fluids and moisture and not be operated in damp conditions. The unit should be operated in a well ventilated environment.
POWER AMPLIFIER Front Panel CHANNEL A ON CHANNEL B (BRIDGE) 4 5 3 OFF POWER PROTECT BRIDGE CHA PEAK CHB PEAK 4 6 8 2 0 5 1 7 8 9 1 0 10 LEVEL 4 6 2 9 1 5 3 7 2 10 LEVEL 3 1. PROTECTION INDICATOR The pro-tection systems are activated when overheating occurs or a DC voltage Is present at the amplifier outputs. 2. PEAK INDICATORS PEAK indicator on each channel illuminates when distortion reaches or exceeds approximately 0.1%. 3.
POWER AMPLIFIER 1. FANS The fans should be kept free of all obstructions and be accessible to cool fresh air when possible. It is important that the fans be used in a dust free environment. 2.OUTPUTS Loudspeaker outputs are on large diamete 30A binding posts or Speakon NL4 connectors. The binding posts may be used in 3 ways. In order of preference:a) Use a quality 4mm Banana plug, colour coded, into the back of the binding posts. b) Bare wire through the hole in the post, screwed down tight.
POWER AMPLIFIER Specifications RATED OUTPUT POWER Stereo mode , EIA: Bothe Channels Driven 8W(1%THD) 4W(1%THD) 2W(1%THD) Bridged mono, mode 8W(1%THD) 4W(1%THD) INPUT SENSITIVITY & IMPEDANCE: @ rated output power,4 ohms Unbalanced, 1/4 hone jack Balanced , XLR VOLTAGE GAIN SLEW RATE:8W full swing Stereo Bridged mono, mode CHANNEL SEPARATION: SIGNAL TO NOISE(20Hz-20KHz) DISTORTION: (SMPTE-IM) FREQUENCY RESPONSE: (+/-1dB) @ rated output, 4 ohms (+/-1dB) @ rated output, 4 ohms DAMPING FACTOR: (8 ohms, 1 KHz)
POWER AMPLIFIER BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH XLR CONNECTORS BALANCED OUTPUT INPUT to Wharfedale Pro unit SIGNAL DIRECTION 2 1 1 Ground (earth) 2 Only connect ground if hum occurs CABLE 3 3 ,, BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH 1/4 JACK to XLR CONNECTORS INPUT to Wharfedale Pro unit SIGNAL DIRECTION BALANCED OUTPUT RING 1 TIP 2 SLEEVE Ground (earth) CABLE Only connect ground if hum occurs 3 ,, BALANCED INPUT WIRING TO WHARFEDALE PRO UNIT WITH STEREO 1/4
Etensive Thermal Protection All though the MP Series of amplifier feature powerful cooling fans it is possible that there will be an abnormally high temperature rise under some circumstances. When this happens special sensors will cause the amplifier to protect itself by first disconnecting the loudspeakers and then by shutting down the power supply until the temperature drops to a more normal temperature.Normal operation resumes automatically once the amplifier cools down.
