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USE IN OTHER COUNTRIES 

Your MATCHLESS amplifier is 

NOT

 equipped with a multiple primary winding enabling the 

user to set the amplifier for various voltages and line frequencies available in foreign 
countries. The Avalon series amplifiers are a dedicated and fixed voltage power 
transformer. They can not be altered to use different AC voltages.  
All Avalon amplifiers must be ordered in accordance to the regions correct AC Voltage.  
 

OPTIONS: 

Effects loops come standard on all Avalon series models. 
The effects loop jacks are located on the rear panel of the amplifier.  
The effects loop jack is configured in a 

Ring, Tip, Sleeve 

manner similar to a recording 

studio console 

insert 

point. Each jack is of the normalizing type and contains the 

send 

and 

return 

information on a single ¼“ stereo phone jack. The 

Tip 

is used for the send signal and 

the 

Ring 

is used for the return signal. The 

Sleeve 

is ground. The SEND signal is derived just 

after the channel volume control and the RETURN signal is inserted at the phase inverter, 

just before the Master volume contro

l.  

A Stereo “Y-cord” is required for loop operation. When the loop is not being used, the signal 
is “normalized” through the jack. 
The effects loop option is intended for use with guitar type foot pedals and semi-pro 
level rack type effects. It is not designed to drive effects units requiring high level signals 
(+4), as encountered in a professional recording studio.  
Switchcraft plugs are recommend since a Switchcraft Stereo jack is utilized.   
(There have been known issues with some Monster Cable Stereo Y Cables.) 
 

ACCESSORIES AND OPTIONS 

ACCESSORIES: 

Your MATCHLESS amplifier comes supplied with an operation instruction 
manual, an IEC power cable, a spare fuse, indicator lamp and panel knob. 

 

Getting Started With 
Matchless Amplifiers 

Tips On Tone 

MATCHLESS manufactures a variety of models, each with its own personality and 
character. The choice of speaker cabinet type has as much to do with tone as does an 
amplifier itself. Speaker cabinets with two twelve inch speakers tend to emphasize 
midrange frequencies and tone texture may be characterized as nasal. The Avalon 112 
Combo uses an In House Modified Celestion G12H30 and is rated at 30 watts.  
 

Summary of Contents for Avalon 30 series

Page 1: ...s and whistles It is an all tube design including the power supply rectifier Cathode bias operation is utilized for the output stage The top boost channel uses two 12AX7 s tubes in the first preamplif...

Page 2: ...ate the proper impedance setting This is easily accomplished using a simple Ohm s Law formula FORMULA Load 1 x Load 2 EXAMPLE 8 Ohms x 8 Ohms _______________ ________________ 4 ohms Load 1 Load 2 8 Oh...

Page 3: ...voids your warranty Use this chart to determine the correct fuse type for your amplifier C 30 Chassis USA 3AG size 3 Amp rating C 30 Chassis Japan 3AG size 3 Amp rating Slo Blo C 30 Chassis Europe 3A...

Page 4: ...ier to run open loop or wide band This is why your amplifiers sound full and rich at low or high volume levels These are what we call features of design and very much a part of the distinctive MATCHLE...

Page 5: ...ation be the mother of invention CUT The CUT control varies the high frequency response of the power amplifier This is characterized by fewer highs or less top end The CUT control is used to soften or...

Page 6: ...ing the back panel Make sure that the amplifier functions normally and that none of the tubes appear to be overheating This is usually indicated by an abnormally bright tube or a reddish glow from the...

Page 7: ...at the phase inverter just before the Master volume control A Stereo Y cord is required for loop operation When the loop is not being used the signal is normalized through the jack The effects loop op...

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