The administration, indicating and switching located on the front and back panels. For each of the entrances there is a regulator of the amplifier input to establish the necessary sensitivity. STEREO MONO. Amplifier can be operated in two modes – STEREO and MONO. In mono amplifier inputs are connected in parallel, which allows free entry to use the remainder as a linear way for further increases in the number of working in parallel amplifiers. – . Stereo-mono switch is located on the rear panel. 220v 250v At the rear panel also located the nest entrance, the network fuse, the output terminals, the switch-voltage switch 220/250 V and damping factor. The switch allows you to change the damping factor damping acoustic systems and consequently the nature of their sound
The main technical characteristics:
Nominal input voltage 1,1 V (+3 dB)
Nominal sine power per channel, limited distortion of 1%:
4 400 4 Om 400 W
8 220 8 ohms 220 W
Range of operating at frequencies uneven -0.5 dB 20-20000 Hz
The speed of rising output . In 25 / mkS
THD
10,01 % no more: at a frequency of 1 kHz 0,01%
0,1 % in a working band 0,1%
/+.96 Signal to Noise + background . 96 dB
Damping factor switchable .
Tension pitaniya.220V/50-60 Hz
Limit stress tolerance in the network 170-270 V
The minimum allowable load resistance 2,5 Om
Dimensions . 482 * 430 * 90 mm
Weight . 16 kG
Guitar Studio 400W Power Amplifier Circuit PCB download (Pcad 4.5):
Password: 320volt.com
Published: 2008/09/23 Tags: audio amplifier circuits, transistor amplifier
Hi-Fi Power Amplifier 100W with TDA7250 Driver
The main element of the final degree of power is specialized integrated circuit TDA7250 company SGS Thomson. This is a complete two-channel driver transistor allow construction of stereo power amplifier power. Using the data system manufacturer catalog have been selected to work with him two pairs of complementary type TIP142 effect transistors, TIP147. They ensure a power 70W per channel for 8? load with the supply voltage + /-35V. Submitted the unit is powered by a voltage of + /-37V, allows you to achieve 110W at load 4ohm. The layout driver is equipped with a security the functions of PLAY, STAND-BY and mute circuits and automatic standby current transistors.