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BASS CHANNEL 

1.  With Tone Controls centered and the Tone Switch in the middle position, the 

frequency respons is flat. 

2.  With the Tone Contrlol Switch in upper position, the sound is "harder" or 

"brighter." With the Tone Switch in lower position, it is a "deep" or "rhythm" 
sound. Maximum bass response is achieved with the  switch in the lower position. 

 

USE OF STANDBY (SBY) SWITCH 

The Standby Switch activates an indicator light which gives you a visual as well as 
audible indication of the Switch position. When the indicator light is on, the amplifier is 
ready for use. 
 

POLARITY SWITCH 

Use of the Polarity  Switch helps to eliminate excessive hum, string noise, and the effect 
of minor shocks. It is located on the front panel. 
 

REAR PANEL FEATURES 

You will find an auxiliary AC outlet on the rear panel. This is convenient for the 
addition of such accessories as the Guild P.A. System, Copicat or Echorec. The current 
rating is printed below the outlet. 
 

HUM BALANCE CONTROL

 

Each amplifier had a Hum Balance Control on the rear panel to minimize amplifier 
hum and buzz. Correct hum-balancing procedure: Make sure that the Polarity Switch 
(front panel) is in the most favorable position (least hum). Then disconnect the 
instruments from the amplifier. With Volume controls at normal playing level, adjust 
the Hum Balance Control for lowest hum. After the instruments are again plugged into 
the amplifier, any hum that returns is the result of electric fields picked up by the guitar. 
 

DOLLY ATTACHMENT 

You will note a small hole with a metal bushing located on the bottom and/or side of 
your amplifier speaker cabinet. An accessory dolly (Guild model TD1) is easily attached 
with a special fitting on the dolly. By inserting this fitting and turning it one-quarter of a 
turn, the dolly can be attached or detached. 
 

 
 

GUILD

 

 

GUILD MUSICAL INSTRUMENTS, HOBOKEN, NEW JERSEY 07030 
 

                                                                                

A DIVISION OF AVNET, INC. 

 

No6949-F  Litho in USA

 

Summary of Contents for Quantum Bass

Page 1: ...distortion level increases exponentially Unless distortion is desired for some particular reasons there is no justfication for turning the volume Control beyond the setting which produces the maximum...

Page 2: ...s as the Guild P A System Copicat or Echorec The current rating is printed below the outlet HUM BALANCE CONTROL Each amplifier had a Hum Balance Control on the rear panel to minimize amplifier hum and...

Page 3: ......

Page 4: ...Watt R 3 Resistor 4K7 Ohm R 4 Resistor 220K Ohm 2 Watt R 5 Resistor 27K Ohm R 6 Resistor 5 Ohm 5 Watt R 7 Resistor 3K3 Ohm R 8 Resistor 18K Ohm R 9 Resistor 180K Ohm R 10 Resistor 470 K Ohm C 1 Capac...

Page 5: ......

Page 6: ...R 39 Resistor 10K Ohm R 40 Resistor 8K2 Ohm R 41 Resistor 680 Ohm R 42 Resistor 1K Ohm R 43 Resistor 10K Ohm R 44 Resistor 1K8 Ohm R 45 Resistor 150K Ohm 2Watt R 46 Resistor 1M Ohm R 47 Resistor 1K O...

Page 7: ...50nF 400V film foil C 39 Capacitor 33uF 25V electrolytic C 40 Capacitor 50nF 400V film foil C 41 Capacitor 135pF 400V ceramic C 42 Capacitor 68nF 100V film foil C 43 Capacitor 33uF 25V electrolytic C...

Page 8: ...OLTAGEWITH 8 OHMLOAD CONNECTEDT 0 OUTPUTAND NOSIGNALAPPLIEDT 0 INPUT ADJUST EACHOUTPUTTUBE BIASCONTROLT 0 PROVIDE0 3V D C ENG 0 L LUGT PROJECT THUNDERBASSBYGUILD OUTPUTSTRAGE COMPANY OCTHODE ADDRESS F...

Page 9: ...istor 100K Ohm R 22 Resistor 330K Ohm R 23 Resistor 1K Ohm R 24 Resistor 14K Ohm 2Watt R 25 Resistor 15K Ohm 2Watt R 26 Resistor 6K8 Ohm R 27 Resistor 6K8 Ohm R 28 Resistor 6K8 Ohm R 29 Resistor 91K O...

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