REACTOR SERIES OWNERS MANUAL ARFR-AC ARFR-AW ARFR-PC ARFR-PW MB-50 ACTIVE CAB ACTIVE WEDGE PASSIVE CAB PASSIVE WEDGE POWER AMP THE WORLD’S FIRST AND LEADING LINE OF TUBE-POWERED FULL RANGE AMPS/MONITORS 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.
REACTOR SERIES USER MANUAL TABLE OF CONTENTS 2 The Atomic Reactor Series 3 Summary of Components 4 Panel Diagrams and Features 6 Using the Reactor Power Amp 8 Rig Diagrams 10 Maintenance 11 Service 10 Troubleshooting 13 Specifications 18 Warranty 1
THE ATOMIC REACTOR SERIES THE ATOMIC REACTOR SERIES is a range of professional audio products from Atomic Amplifiers including the world’s first and leading tube-powered full-range guitar amp/personal monitor offered in both CAB and WEDGE formats, plus passive versions of the same products (without power amplifiers) and finally, a standalone version of the power section called the MB-50, a 50w tube-powered full-range mono block amplifier.
SUMMARY OF COMPONENTS The Reactor FR Powered Cab and FR Powered Wedge are comprised of a 50-watt RMS tube audio power amplifier section and a very high efficiency tuned speaker system installed in a high quality speaker cabinet. The power amplifier employs one 12AX7 and two “JJ” Brand 6L6GC vacuum tubes to deliver full-rated power over a full-frequency response, with high headroom and very low distortion. In other words, this is an amp “without an opinion” which amplifies without coloring the tone.
POWERED WEDGE & CAB PANELS Figure 1 (above): Controls & Connections of the FR-AC Active Powered Cabinet Model. Figure 2 : Controls & Connections of the FR-AW Active Powered Wedge Model. The models have identical controls, described on the facing page.
e Unbalanced (¼") Input – Unbalanced input of the amplifier. The ¼” input overrides the balanced XLR input if both are connected. r Balanced (XLR) Input – This female XLR-type connector accepts a balanced or unbalanced line level signal. t Balanced ( XLR) Thru – This male XLR connector passes any signal sent to the balanced XLR input jack (whether or not the amp is switched ON). Note: THRU passes ONLY the XLR input and NOT the ¼" input! u Power Switch – Switches the amplifier ON or OFF.
MB-50 PANEL The MB-50 is similar to the powered Wedge and Cab with 2 exceptions: Presence Control: Since it has no internal speakers, the Tweeter control is replaced by an active Presence Control on the MB-50. Presence can alter the high frequency component of a signal passing through the amplifier, adding “brightness” or “sparkle” while retaining a pleasant highend quality. The presence circuit is completely disengaged with the knob turned fully counterclockwise.
USING THE REACTOR SERIES POWER AMP The 50w power amp module in the Active Cab, Active Wedge, or MB-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. POWER UP! Connect the supplied Power Cable to your unit’s Power Input located on the back panel. 2.
RIG DIAGRAMS MONO RIG - Guitar processor (ex: Fractal Axe-FX Ultra) connected to the balanced XLR or ¼” unbalanced input (whichever is convenient) of the powered cab or wedge. STEREO RIG – Connect the left and right outputs of a stereo processor to the inputs of two Reactors to create a wide, 3D sound.
ACTIVE CAB/WEDGE plus REACTOR PASSIVE CAB or WEDGE It is possible to operate a second speaker cab with your powered cab or wedge. Set up your active unit as shown in the MONO GUITAR RIG example (p.8) and set the Speaker Switch to EXT. Then, connect the Speaker Jack output to the Input of the passive cab/wedge with a high quality speaker cable. This system may be duplicated on each channel to create a massive stereo rig.
MAINTENANCE The power section of your amplified Reactor Series product is vacuum tube driven, and therefore requires tube maintenance. The power tubes have a life expectancy of approximately 1000 hours. Regular play requires regular service. Tube Replacement: The Reactor power amp utilizes one 12AX7 tube and two high quality JJ brand 6L6GC tubes selected because they are capable of producing the best possible sound quality.
change the voltage specification from 115v (US) to 230v (EU), or vice versa, the fuse module must be rotated 180° and the fuse changed to the correct specified value as marked above the AC inlet. WARNING! Always disconnect the amplifier’s power cord from the AC outlet before attempting to change the fuse. Refer to the specification pages (pp. 13-17) to determine the correct fuse type and rating. NEVER use a fuse with a higher rating as this could damage the amp and present a serious safety hazard.
TROUBLESHOOTING Reactor 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? Is the fuse blown? The Reactor powers up but produces no sound. Is the Reactor really turned on? (“Tubes glow and fan blows.
SPECIFICATIONS: ARFR-AC ACTIVE CAB Intended Applications: Full Range 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) Amplifier Power Output: 50w into 8 ohms at 3% THD Power Amp Input 270 mv (-9.5db) at 1000 Hz Sensitivity (Return): for 50 watts output Power Amp Input Impedance: 100K ohm Tubes: One 12AX7A tube Two 6L6GC tubes Fuse: US Model 115V AC, Slow Blow, 3.
SPECIFICATIONS: ARFR-AW PASSIVE CAB Intended Applications: Full Range Sound Reinforcement Power Requirements: NA Amplifier Power Output: NA Power Amp Input NA Sensitivity (Return): NA Power Amp Input Impedance: NA Tubes: NA Fuse: NA Internal Speaker: 8 ohms - 12” 200w driver - 1” Tweeter with 4.
SPECIFICATIONS: ARFR-AW ACTIVE WEDGE Intended Applications: Full Range 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) Amplifier Power Output: 50w into 8 ohms at 3% THD Power Amp Input 270 mv (-9.5db) at 1000 Hz Sensitivity (Return): for 50 watts output Power Amp Input Impedance: 100K ohm Tubes: One 12AX7A tube Two 6L6GC tubes Fuse: US Model 115V AC, Slow Blow, 3.
SPECIFICATIONS: ARFR-AW PASSIVE WEDGE Intended Applications: Full Range Sound Reinforcement Power Requirements: NA Amplifier Power Output: NA Power Amp Input NA Sensitivity (Return): NA Power Amp Input Impedance: NA Tubes: NA Fuse: NA Internal Speaker: 8 ohms - 12” 200w driver - 1” Tweeter with 4.
SPECIFICATIONS: MB-50 MONO BLOCK POWER AMP Intended Applications: Full Range 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) Amplifier Power Output: 50w into 8 ohms at 3% THD Power Amp Input 270 mv (-9.5db) at 1000 Hz Sensitivity (Return): for 50 watts output Power Amp Input Impedance: 100K ohm Tubes: One 12AX7A tube Two 6L6GC tubes Fuse: US Model 115V AC, Slow Blow, 3.
WARRANTY 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.
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. All products being returned to Atomic Amplifiers for warranty service must be accompanied by a copy of the original sales receipt or packing slip, a detailed description as to needed repairs, and an Atomic Amplifiers Return Authorization number.
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