Have a look at Bose Home Theatre Systems!

Bose has introduced Lifestyle V-Class and T-Class home theatre systems, combining propreitary 5.1 surround sound with a breakthrough technology that overcomes much of the growing complexity of setting up and using home theatre systems. The new Lifestyle systems simplify the set up of multiple components, and transform everyday use: onscreen displays work seamlessly with just [...]

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iPhone 4G

Apple is set to create a sensation in the mobile phone market with the launch of iPhone 4G.This next generation smart phone uses the advanced LG LCD Display technology, namel, In-Plane Switching (IPS). Apple has added a host of new features to the iPhone 4G to give an all- round better experience to its customers.The [...]

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Smart clothes to help you cope with stress

Smart clothes that monitor your psychological states,temperature and heart rate could soon be available so as to help you cope with stress. As part of an artistic project called Wearable Absence uses garments,the clothes will be made of textiles woven with various wireless sensors that can track various types of biological conditions of the wearer,such [...]

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10 Ways To Party Safe

Everybody loves to party. Go ahead, have fun this holiday season, but stay safe. You’ve bought new clothes and accessories, you’ve planned where you are going and with whom, you’ve made arrangements with your parents/children/peers (depending upon your age) and are all set to have a rollicking time this holiday season. Perhaps you’ve even gone [...]

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Designing of 18W Audio Amplifier

It’s a very high Quality very simple unit and there is no need for a preamplifier. Circuit Diagram: Amplifier parts: P1 = 22K Log.Potentiometer (Dual-gang for stereo) R1 = 1K 1/4W Resistor R2 = 4K7 1/4W Resistor R3 = 100R 1/4W Resistor R4 = 4K7 1/4W Resistor R5 = 82K 1/4W Resistor R6 = 10R [...]

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Designing of Electronics Attenuator

Circuit Diagram: Two low voltage, low power zeners are used to control electronically the level of an audio signal. The attenuation range is from 6 to 58dB for an input current from 0.042 to 77 mA corresponding to a control voltage from 2.7 to 7.5V. If control voltage is limited to 5V, the attenuation is [...]

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Designing of Low pass filter – Subwoofer

The acoustic spectrum is extended by very low frequencies 20Iz and reaches as the 20000Iz in high frequencies. In the low frequencies is degraded the sense of direction. This reason us leads to the utilization speaker for the attribution of very low frequencies. The manufacture that to you we propose distinguishes these frequencies, in order [...]

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Low impedance microphone amplifier

Description The circuit is a microphone amplifier for use with low impedance (~200 ohm) microphones. It will work with stabilized voltages between 6-30VDC. If you don’t build the impedance adapter part with T1, you get a micamp for higher impedance microphones. In this case, you should directly connect the signal to C7. Circuit diagram Layout [...]

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Designing of Two way cross-over 3500 Hz

Cross-over they are netting usually with passive materials that have aim to separate a region of frequencies in smaller. Cross-over the manufacture that to you we offer it separates the acoustic region in two sub areas in order to we lead two loudspeakers for the high frequencies and for low. Cross-over they are essentially for [...]

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Designing of 50 Watt Amplifier

This is a handy, easy to build general purpose 50 watt amp. The amp has an input for a radio, TV, stereo or other line level device. It also has a phono input for a record player, guitar, microphone or other un-amplified source. With the addition of a low pass filter at the input, it [...]

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