Atomic Reactor 50/50 2×50W STEREO RACKMOUNT FULL RANGE TUBE POWER AMP OWNER’S MANUAL www.atomicamps.
WARNING! TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. NO USER SERVICABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED PERSONNEL ONLY. SERVICE BY PERSONS OTHER THAN ATOMIC AUTHORIZED SERVICE TECHNICIANS MAY VOID WARRANTY. THIS UNIT MUST BE EARTH GROUNDED. Atomic Amplifiers, Atomic Reactor Series, and Reactor FR are trademarks of Atomic Amplifiers LLC.
ATOMIC AMPS REACTOR 50/50 MANUAL 2 The Atomic Reactor 50/50 Stereo Power Amp 3 Panel Features & Functions 5 Using the Reactor 50/50 8 Rig Diagrams 10 Maintenance 11 Service 10 Troubleshooting 13 Specifications 18 Warranty 1
ATOMIC AMPS REACTOR 50/50 MANUAL THE ATOMIC REACTOR 50/50 STEREO POWER AMP is a rackmount, 2 × 50W amplifier designed for use with guitar or full range speaker cabinets. The Reactor 50/50 was inspired by the demand for a stereo version of our popular MB-50 “mono block” amplifier, created with the stage or studio guitarist in mind. It is also ideal for acoustic guitars, vocals, electronic instruments, and any other application where a high quality stereo amplifier is needed.
ATOMIC AMPS REACTOR 50/50 MANUAL Figure 1: Controls & Connections of the REACTOR 50/50 Front Panel Power Switch – Switches both channels of the amplifier ON or OFF. The power light will glow when power is ON. Unbalanced (¼") Input (×2) – Unbalanced input of the amplifier (one per channel). The ¼” input overrides the balanced XLR input if both are connected. Standby Switches (×2) – These control high voltages to the tubes, independently for each channel.
ATOMIC AMPS REACTOR 50/50 MANUAL Figure 2: Controls & Connections of the REACTOR 50/50 Rear Panel Power Input - Connect the supplied AC line cord here. The power inlet also houses the Fuse Compartment which must be opened to replace the fuse. In order to convert the power amp from 115v (US) to 230v (EU) operation (or vice versa) change the fuse to the appropriate value (see specs on pp. 13–17), then rotate and replace the fuse compartment. Cooling Fan (×2) – These quiet fans spin while the amp is on.
ATOMIC AMPS REACTOR 50/50 MANUAL The Reactor 50/50 is easy to use and offers the controls needed for a great range of music performance situations. NOTE: Always lower the output level knobs on any connected devices before beginning to operate the power amp. 1. Connect one or more speakers to the Speaker Output Jacks and set the Impedance Selector Switch to match their rating(s). 2. Using a high-quality cable, connect a signal source to either the Unbalanced (¼”) Input or the Balanced (XLR) Input. 3.
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ATOMIC AMPS REACTOR 50/50 MANUAL Your Atomic Reactor 50/50 is vacuum tube driven, and therefore requires maintenance. Power tubes have a life expectancy of approximately 1000 hours. Regular play requires regular service. Tube Replacement: The 50/50 utilizes 2 × 12AX7 tubes and four high quality JJ brand 6L6GC tubes, selected because they offer excellent sound quality. You will notice degradation when tubes need to be replaced. The power section is built to work with any properly biased 6L6 or EL34 tube.
ATOMIC AMPS REACTOR 50/50 MANUAL WARNING! The internal voltages of tube type amplifiers are potentially lethal and capacitors are capable of storing these lethal charges. The Reactor 50/50 allows you to bias the amps without removing the panel to expose componentry but you should still exercise caution or refer to the services of a qualified professional. The Fuse: The fuse protects the amplifier in the event of an electrical fault or tube failure.
ATOMIC AMPS REACTOR 50/50 MANUAL Reactor 50/50 does not power up. Is the power cord firmly inserted into the AC input socket? Is the power cord firmly plugged into a working electrical outlet? Are one or more of the fuses blown? The Reactor 50/50 powers up but produces no sound. Is the Reactor really turned on? (“Tubes glow and fan blows.
ATOMIC AMPS REACTOR 50/50 MANUAL Q: How do I go about getting my Reactor product repaired? A: For repairs within the amp’s warranty period (1 year or 90 days for tubes) please email info@atomicamps.com for service instructions. You must first contact us for a RETURN AUTHORIZATION NUMBER and shipping instructions. Q: A: Is there a charge for repairing my Reactor Series Product? There may or may not be.
ATOMIC AMPS REACTOR 50/50 MANUAL Intended Applications: Guitar/FRFR Sound Reinforcement Power Requirements: 115V AC, 50/60 Hz 105w OR 230v Ac, 50 Hz 105w Remove/rotate/replace fuse holder to select between 115 (US) and 230 (EU) Main Fuse: US Model 115V AC, Slow Blow, 3.15A EU Model 230V AC, Slow Blow, 1.6A Channel Fuses: 2 x 250mA (same for US/EU) Amplifier Power Output: 2x 50w into 8 ohms at 3% THD Power Amp Input 2x 270 mv (-9.
ATOMIC AMPS REACTOR 50/50 MANUAL Atomic Amplifiers warrants to the original purchaser that this product (exclusive of tubes) will be free of defects in material and workmanship for a period of 1 year from the original date of purchase. Atomic Amplifiers warrants to the original purchaser of this product that tubes will be free of defects in material and workmanship for a period of period of 90 from the original date of purchase by the original purchaser.
ATOMIC AMPS REACTOR 50/50 MANUAL be the responsibility of Atomic Amplifiers. Atomic Amplifiers MUST perform all warranty services. Transportation charges involved in warranty services are the sole responsibility of the purchaser. A copy of the original sales receipt or packing slip must accompany all products being presented to an Atomic Amplifiers Authorized Service Center for warranty service.
