I may not be able to explain in detail about the working principles of a
series 100 watt sub woofers amplifier above, because it is set up is not the
result of my own design. But maybe I can explain in outline only. The above
amplifier electronics circuit can be divided into three parts which have their
respective functions. In the first part of the pre-amplifer or home, where the
amplifier is represented by transistors Q1 and Q2 with a combination of
resistors and capacitors are connected with both the transistors. The second
part of the amplifier end, represented by transistor Q4 and Q6 and participates
with the help of several resistors and capacitors as the R8, R15 in Q1 and the
Rohrbaugh R9, R10, R11, R12 and R13 on Q2. While in the last part of the
drivers to the loudspeaker. In this section are represented by the Q5 and Q7.
Set of drivers for this very necessary given the loudspeaker impedance of the
output terminals of the amplifier circuit is high impedance so that the end of
the series will be so burdened or even won't work because of the imposition of
the loudspeaker has only a very low resistance value. The power generated by a
series of amplifiers is the range 100 Watts.
Power supply used to distribute this series is the power supply that has
two polarity or voltage power supply that has a supply of positive and
negative. The magnitude of the voltage range is 35 volts. To be able to create
and understand the circuit power supply with double polarity you can see here.
LIST OF COMPONENTS
1. Resistor: R1 (4.7 Kohm), R2 (680 ohm), R3 (10 Kohm), R4 (4.7 Kohm), R5
(680 ohm), R6 (47 Kohm), R7 (22 ohm) R8 10 Kohm), Rohrbaugh R9 (22 ohm ½ watt),
R10 (22 ohm ½ watt), R1 (1 Kohm 1 watt), R12 (1.5 Kohm 1 watt), R13 (100 ohm 2
watt), R14 (0.33 ohm 5 watt), R15 (100 ohm 2 watt) and R16 (0.33 ohm 5 watt).
2. Capacitors: C1 (0.22 uF), C2 (4.7 uF), C3 (10 uF), C4 (47 (OOF) and C5
(560 pF).
3. Transistors: Q1 Q2 & (108 BC), Q3 & Q6 (2N6107), Q4 and Q5
(2N5294) & Q7 (2N3773).
4. Loudspeaker: 12 Inch Sub Woofers 100 Watt
Note:
-Use a capacitor with a voltage of 110 volts and above
-Use a resistor with a power suit series
-Use the heatsinks in Q4, Q5, Q6 and Q7.