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Contents Congratulations………..…………………………………… 1 Product Description Power Output Protection………………………………………………..…… 2 Use and Operation Front Panel Power Switch Rear Panel Remote Jack………………………...…….. 3 Inputs Speaker Output Binding Posts Speaker Phasing Recommended Channel Assignment Remote Operation….…………………….…….....……… 4 Specifications……….…………………………………..…… 5 Cable Quality The Marvelous Vacuum Tube………..………………. 6 Tube Reliability……………………………………………….. 7 Warranty & Repair Policy….
Congratulations Please accept our sincere thanks and congratulations for making your musical choice Butler Audio. This new USA-Patented technology from BK Butler promises to become a classic design, just as his former efforts have in the professional music and auto sound industry. After more than 25 years of tube audio experience in the Professional Music Industry with some of the world's greatest musical talents, BK Butler has now created an entirely new class of home audio and theater amplifier products.
Product Description: Butler Audio Models 5150 is a vacuum tube-driven 5-channel power amplifier. Each channel Power Module is completely independent and includes separate RCA input and 5-way speaker output binding posts, vacuum tube, rectifier & filter capacitors, electronic components, protection and output power devices, etc. Butler Audio Model 3150 is identical to all descriptions within this booklet except that Power Modules 2 and 4 have been removed for a total of 3 channels.
6) DC Offset Voltage at Speaker Output: Continuous monitoring circuit immediately opens the speaker relay upon the detection of any excessive DC voltage level. 7) Short circuit protection: In addition to the Main DC Power Fuses, mentioned in #5 above, this continuously active circuit becomes active to the speaker output below a load of approx. 2 ohms.
Inputs: The high-quality gold plated RCA-type input jacks will easily accept the line-level signal supplied from most pre-amplifiers. The input gain has been internally preset to equal full (150 Watts) output at 8 ohms for an input sensitivity of 1.5Volts. The input impedance is a very compliant 47K Ohms which accepts a wide range of signals without undue loading. Since these inputs are unbalanced, it's good practice to keep the shielded connecting audio cables as SHORT as possible.
Specifications: Models TDB-5150 & TDB-3150 Power rating, RMS: 150 Watts per channel, 8 Ohms, All channels operating simultaneously 225 Watts per channel, 4 Ohms Frequency Response: 20 - 20,000 Hz, +/- 0.5dB Distortion (THD): Less than 0.10% at 8 Ohms Less than 0.15% at 4 Ohms Input Sensitivity 1.5V for 150 Watts into 8 Ohms S/N ratio: Better than 110dB, "A" Weighted Slew Rate: 15V / uSec. Vacuum Tube Complement: One 6SL7GC dual triode per channel Idling Consumption: Approx. 120Watts (Approx.
Cable Quality: Within reasonable limits, it has been our experience that you get what you pay for in cables. A good set of shielded input connection cables coupled with large gauge, high quality low-loss speaker wire is well worth the investment. Do not degrade the remarkable performance of your amplifier with inferior connecting cables. The Marvelous Vacuum Tube: Triode Vacuum Tubes were the first method of practical audio amplification patented in 1907 by Lee De Forest.
Tube Reliability: It's interesting to note that until the 1960's, tubes were used in every area of electronics including aviation. When people flew on a commercial airliner, they literally trusted their lives on tube-powered avionics. So, aside from a common-sense warning to take care not to break the glass, there is very little reason to be concerned about the 6SL7GC tubes within your amplifier.
Warrant y & Repair Polic y: All Butler Audio products are manufactured using the finest parts and materials available. Butler Audio Tube Driver Blue home audio amplifiers are warrantied against manufacturing defects in material and workmanship for a period of five (5) year from the original date of purchase, if purchased at an authorized Butler Audio retailer.
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