Bass Boost Circuit | Electronic Project Circuits

Posts Tagged ‘bass boost circuit’

Audio loudness control

Audio loudness control circuit used to add bass. More during the normal listening levels.
Audio loudness control circuit is a passive circuit.Do not use the power supply. When the input signal into. Switch S1 is an option to use open (ON) using loudness control. Off (OFF) to use a bypass. When the switch S1 to the ON position the signal will flow through C1, C2 and R1. This will serve as a low pass filter circuit.VR1 is adjusted by the strength of the signal to the output.VR1, which uses the volume type with a central bar (Center Tap) only. The output of the circuit will be connected to the region to pre-tone next step.

Be the first to comment - What do you think? Posted by admin - September 25, 2010 at 5:20 am

Categories: Audio diagram, Tone control Tags: bass boost circuit

Super boost bass by UA741

Super boost bass circuit this be low pass filter circuit model,which will low pass filter. By give bass audio that firm then convenient for a person who like bass audio.
This circuit will use , power supply 12 volt. When feed input come in sound signal will coupling change C1 and R3 go to reach at pin B of Q1. Which Q1 do something signal booster give the power goes up in the one level before from that time signal at enlarge already will go out the way pin E of Q1 go to reach at C2 for coupling sound signal again from that time signal go to reach still filter frequency part. Which signal first part will change C3, C5, R8, R9, and R10 By perform eradicate high frequency and signal again the part will change R5, R6, R7 and C4 Which be low pass frequency change by have VR1 be formed fine low frequency level or sound bass too much or the a little from that time signal bilateral the part will congregate to go to reach at pin 2 of IC1. Then do something signal booster go out 6 leg ways of IC change C7 go out still output and sound signal again one from pin 6 of IC fed get back still filter frequency part for control expansion way frequency ratio has good stability output of circuit induce build reach pre tone section next.

Be the first to comment - What do you think? Posted by admin - August 9, 2010 at 7:06 am

Categories: Audio diagram, Pre Amplifier Tags: bass boost circuit, ua741

60W Bass Amplifier by MJ11016

60W Bass Amplifier by MJ11016
Low-cut and Bass controls
Output power: 40W into 8 Ohm and 60W into 4 Ohm loads

This design adopts a well established circuit topology for the power amplifier, using a single-rail supply of about 60V and capacitor-coupling for the speaker(s). The advantages for a guitar amplifier are the very simple circuitry, even for comparatively high power outputs, and a certain built-in degree of loudspeaker protection, due to capacitor C8, preventing the voltage supply to be conveyed into loudspeakers in case of output transistors’ failure.
The preamp is powered by the same 60V rails as the power amplifier, allowing to implement a two-transistors gain-block capable of delivering about 20V RMS output. This provides a very high input overload capability.

R1__________________6K8 1W Resistor
R2,R4_____________470R 1/4W Resistors
R3__________________2K 1/2W Trimmer Cermet
R5,R6_______________4K7 1/2W Resistors
R7________________220R 1/2W Resistor
R8__________________2K2 1/2W Resistor
R9_________________50K 1/2W Trimmer Cermet
R10________________68K 1/4W Resistor
R11,R12______________R47 4W Wirewound Resistors

C1,C2,C4,C5________47µF 63V Electrolytic Capacitors
C3________________100µF 25V Electrolytic Capacitor
C6_________________33pF 63V Ceramic Capacitor
C7_______________1000µF 50V Electrolytic Capacitor
C8_______________2200µF 63V Electrolytic Capacitor (See Notes)

D1_________________LED Any type and color
D2________Diode bridge 200V 6A

Q1,Q2____________BD139 80V 1.5A NPN Transistors
Q3_____________MJ11016 120V 30A NPN Darlington Transistor (See Notes)
Q4_____________MJ11015 120V 30A PNP Darlington Transistor (See Notes)

SW1_______________SPST Mains switch

F1__________________4A Fuse with socket

T1________________220V Primary, 48-50V Secondary 75 to 150VA
Mains transformer (See Notes)

PL1_______________Male Mains plug

SPKR______________One or more speakers wired in series or in parallel
Total resulting impedance: 8 or 4 Ohm
Minimum power handling: 75W

Please read more at the original source:http://www.redcircuits.com//Page66.htm
Thank you.