Production: Approximately 50 units
Suggested list price: $1160.00
Dealer price: $699.00

The Rockman 500 Power Amplifier sold only w/Head Case. It was made by Carver Inc. model number PM-175. SR&D made a few modifications to the amp including a limiting circuit and a switchable Eq circuit that boosts the high and lows to mimic a full-range speaker when using normal guitar speakers. Also direct output jacks were mounted on the rear for stage use. SR&D hand dated these units with a felt marker under the removeable top (inside) at the time they modified the Amps. Power output 250 watt stereo into 4 ohms; 185 watt stereo into 8 ohms.

FEATURES and FUNCTIONS:
• POWER ON/OFF - This switch powers up the amplifier with a "slow start-up" eliminating a turn-on current surge.



• POWER LED - Upon start-up, the lit green LED indicates the amplifier is ready for operation.



• SIGNAL LED - The signal LED indicates the presence of audio greater than 100 mW at the output of either the left or right channel. This is beneficial in system check out and monitoring.



• CLIP LED - The amber Clip LED will flash at the point of clipping for either right or left channel. When the Clip LED flashes it indicates that the headroom of the amplifier has been exhausted.



• PROTECT LED - If the Protect LED is brightly lit, then the amplifier is either being driven into a short-circuited load or being driven with excessive high frequency (non-musical) signals. The Protect LED will go out if the fault condition is removed or corrected.
  
  If the Protect LED is dimly lit for more than a few seconds, then a fault condition has occurred within the amplifier. It indicates that the power supplies have been automatically limited to an extremely low output level. This prevents the power supply or amplifier failure from damaging the loud speakers.



• LEVEL CONTROLS - The Input Level Controls exist for each channel to progressively reduce the amplifier's input sensitivity. Turn fully clockwise for maximum sensitivity. Each control has eleven detents for precise adjustment between channels. The controls also allow for easy return to predetermined settings with minimum error.



• To drive both sides of the ROCKMAN 500 STEREO AMPLIFIER with a mono input signal, use a normal "Y" cord to split the input signal to the left and right power amp inputs

Stage Use

Prolific use on the BoSToN stage. All stacks are monitored using the Rockman 500.

Collectability