REX II Power WARRANTY REGISTRATION FORM Unit Serial Number: _______________________________________ Customer Name: _______________________________________ Address: _______________________________________ _______________________________________ Date of Purchase: _______________________________________ Purchased From: Dealer Name: _______________________________________ Address: _______________________________________ _______________________________________ IMPORTANT NOTE: In order to receive the full five
receipt to Balanced Audio Technology at the address below, within thirty days of purchase. Failure to do so will result in the product being warrantied for one year from the date of manufacture. 1300 First State Blvd.
REX II Power Special Edition Balanced Power Amplifier Owner's Manual 1300 First State Blvd.
Introduction Thank you for your purchase of the Balanced Audio Technology REX II Power vacuum tube amplifier. Please read this owner’s manual to obtain the full benefit of the REX II Power in your system. This manual provides you with necessary safety information and operating procedures for this exceptional unit. WARNINGS: To prevent the possibility of serious injury, electrical shock, or fire: DO NOT operate with the bottom cover removed. DO NOT expose to rain or moisture.
Installing Tubes 1. 2. 3. 4. Install 6SN7 tubes in positions V1 through V6 Install 6H30 SuperTubes in positions V7, V8, V15 and V16 Install 6C33 tubes in positions V9 through V12 Install 6V6GT tubes in positions V13 and V14 NOTE: Care must be exercised when installing the 6C33 output tubes. While inserting the tubes, please use gentle circular motion in order to facilitate proper socket pin engagement. Do not use force, as doing this might damage the socket pins and/or tubes.
Physical Placement It is recommended that you provide open space above the unit for proper ventilation, with no electronic components or shelves placed directly overhead. Mount the unit on a hard surface with proper ventilation underneath. Avoid placing the unit directly on a carpeted floor, as doing so will block the ventilation slots in the unit’s bottom cover. Connecting the REX II Power to Your System For Balanced Preamplifiers: Use balanced XLR interconnects.
Operating the REX II Power Normal operation of the REX II Power amplifier requires simply turning the unit on. There are no meters to connect, bias setpoints to remember, or drifting bias points to adjust. Please read the Autobias Feature section for more details. Turning the REX II Power ON: The main power switch is located at the rear of the unit. When you turn the unit on, it will go through a gentle power-on sequence.
Protection Circuits Your REX II Power amplifier is equipped with two types of sophisticated protection circuits. Thermal Protection . Thermal protection circuits monitor power dissipation in each of the unit’s four output tubes. Should the power dissipation in that part of the circuit exceed the preset value, the protection mechanism will disable that particular tube. The corresponding green LED will then go out.
In other cases the tube might continue activating the protection circuit, indicating the need for replacement. The standard recommendation is to ignore the first occurance, and replace the tube following any further events. What to do when the LED light goes out: If you notice that one or more green LED’s goes out, the first step should be to RECORD THEIR POSITIONS. Then turn the unit OFF by using its main power switch, wait a couple of minutes and turn it back ON.
Replacing Output Tubes: In order to replace the 6C33C-B output tubes, please contact the factory and supply them with the unique identification number stamped on the side of the tube needing replacement. This information will be used by Balanced Audio Technology to provide an optimal replacement tube for your amplifier. Please do not substitute any random tube as a replacement.
Specifications Output Power (Stereo Model) Output Power (Monoblock) (At less than 3 % THD) 80W per channel 160W Frequency Response 5Hz to 200kHz Input Impedance 215kΩ Gain (nominal into 8 Ohms) 26dB Power Dissipation at idle: At full powe: 480W 900W Tube Complement: 4 x 6H30, 2x6V6, 6x6SN7, 4x6C33 Dimensions 17” x 24” x 9” Weight (net) 100lb REX II Power Five Year Limited Warranty Terms and Conditions
1. Limited Warranty Upon receipt of the attached warranty registration form, Balanced Audio Technology warrants the purchased product to be free from manufacturing, materials, and workmanship defects for five years from date of original purchase, excepting vacuum tubes, subject to the following conditions.
damages to the purchaser. This warranty gives you specific legal rights. You may also have other rights which vary from state to state.
