background image

condition in the case of a direct short circuit between the + and 

- output speaker binding posts. 

 
 

7.

 

Over Temp Circuit Breaker:  Opens the speaker relay if the 

heatsink temperature exceeds 115 deg. C.  If this occurs, the 

amp will automatically begin operate again after the 

temperature has decreased sufficiently. 

 

 

NOTE:

  

BE CERTAIN THAT AIR FLOW IS COMPLETELY UNRESTRICTED 

ABOVE AND BELOW THE AMPLIFIER.     THIS AMP IS DESIGNED FOR 
USE ONLY AT ROOM TEMPERATURE WITH ADEQUATE OPEN 
VENTILATION AND CIRCULATION.   IF ENCLOSED IN A CABINET, 
FORCED AIR VENTILLATION IS RECOMMENDED.   

 

IMPORTANT:  COOL OPERATION = LONGEST LIFE AND RELIABILITY!   
DO NOT OPERATE WITHIN A COMPLETELY CLOSED CABINET OR 
ENCLOSURE WITHOUT POSITIVE FORCED AIRFLOW! 
LET YOUR AMP BREATHE

!

 

 

 

 

Use and Operation: 

Important:  Do not apply power until you have read and understand this section!   
Connect or disconnect cables only with amplifier OFF. 

 

Note:  Your new Butler MONAD amp is designed to operate with ONE separate speaker 

system connected.  Connect "Speaker Output" to speakers only!  DO NOT SHORT 
ACROSS SPEAKER OUTPUT POST TERMINAL.    

 

Power Switch: 

Supplies main AC power to the amplifier. The ON position is up and 
will be indicated by the illuminated blue 

Butler

  logo on the front 

panel.  The intensity of the logo is adjustable with the “Dimmer” 

control. 
 

 

Summary of Contents for MONAD A100

Page 1: ...TUBE DRIVEN MONOBLOCK POWER AMPLIFIER UTILIZING b T H E R M I O N I C VACUUM TUBE TECHNOLOGY Concept Design B K Butler HAND BUILT Patented in the USA Worldwide patents pending Monad Tube Driver Tube Driver Blue and Thermionic are trademarks of or patented by BK Butler ...

Page 2: ...put Protection 2 Use and Operation Front Panel Power Switch Rear Panel Remote Jack 3 Inputs Speaker Output Binding Posts Speaker Phasing Remote Operation 4 Specifications 5 Cable Quality The Marvelous Vacuum Tube 6 Tube Reliability 7 Warranty Repair Policy 8 ...

Page 3: ...more than 10 times the previous usable power With painstaking efforts and great attention to detail the sonic response load and transfer characteristics of the classic 300B power triode tube have been carefully balanced to operate under optimum conditions at extremely useful and satisfying power output levels This groundbreaking design completely eliminates one of the most inefficient and non musi...

Page 4: ...e of 120VAC nominal input line voltage with a minimum current supply of 5A is required 230 240 VAC models require approx 50 of the current rating of 120V models Protection Listed below are the various types of internal protection provided for unexpected conditions 1 AC input fuse for protection against any major system power fault Do not replace with a fuse of higher current rating 2 Thermistor pr...

Page 5: ...ON IS RECOMMENDED IMPORTANT COOL OPERATION LONGEST LIFE AND RELIABILITY DO NOT OPERATE WITHIN A COMPLETELY CLOSED CABINET OR ENCLOSURE WITHOUT POSITIVE FORCED AIRFLOW LET YOUR AMP BREATHE Use and Operation Important Do not apply power until you have read and understand this section Connect or disconnect cables only with amplifier OFF Note Your new Butler MONAD amp is designed to operate with ONE s...

Page 6: ...e performance and sound quality of this amplifier is worth it Speaker Output Binding Post A top of the line Rhodium Gold plated Cardass heavy duty 5 way binding post is supplied to accommodate virtually any type of speaker connection Speaker wire should be kept as short as possible and away from input cables Shielded cables must NEVER be used as this may cause high frequency loss and introduces an...

Page 7: ...ly used by the FAA to test and analyze radar tubes for aviation control towers This old but very high quality apparatus enabled him almost unlimited control to adjust and experiment with virtually every conceivable parameter of any tube For example input and output pins could be reassigned B voltages and bias currents switched to any desired value or configuration During these test it was noted th...

Page 8: ...ld last as long as the other high quality electronic components in the design No special tube care replacement matching biasing or maintenance is usually necessary In the unlikely event a tube becomes faulty it can easily be replaced by any generic 300B tube commercially available but for optimum performance we recommend our Butler 300B as replacement Finally the most likely reason you invested in...

Page 9: ...S typical 4 Ohms Frequency Response 20 20 000 Hz 0 6 dB Verified__________ Distortion THD Less than 1 0 at 8 Ohms A Weighted Verified__________ Input Sensitivity 1 7V for 100 Watts into 8 Ohms Verified__________ S N ratio Better than 105dB A Weighted Verified__________ Vacuum Tube Complement Butler Model 300B directly heated power triode Max Power Consumption 6 Amps Dimensions 17 W x 12 5 D x 10 5...

Page 10: ...sed from anauthorized Butler Audio retailer h Any amplifier purchased outside the USA Amplifiers purchased in another country are covered only by that country s distributor and not by Butler Audio Any removal alteration or tampering of the serial numbers or tampering with the inside of the product will result in voiding the warranty Butler Audio reserves the right to determine and make final judgm...

Page 11: ...C U S T O M WWW BUTLERAUDIO COM ...

Reviews: