Samsung Electronics 14-8Popular Foreign Products– Popular for those who prefer profound sound volume/output(Hi-fi mania, Home Theater mania)– Products in the range of middle and low price such as Denon, Yamaha, Onkyo (900,000~1.1 mil-lion won) are popular.– There is very expensive product over 10 million won among foreign audio markers such asMerdian, Mcintosh, Krell.Type of Amp/Receiver* Pre AmpA device that receives, adjusts and sends signal from source devices (tape deck, CD player, radiotuner, etc.) to power amplifier.* Power AmpA device that amplifies the signal from Pre Amp into big sound so that speaker can vibrate.* Integrated AmpA device that combines pre-amp and power amp into one.* ReceiverA device that contains tuner for radio broadcasting and integrated amp.A/V ReceiverGeneral Amplifier– Support 2 channels (Left, Right Speaker)– Mainly reproduce music– No decoder : cannot cope with various sound formatsA/V Receiver– Support multi-channel (support 5.1 channel)Launch products supporting 6.1 channel and 7.1 channelrecently.– Reproduce music and movie sound realistically– Has decoderCan cope with various sound formats such as Dolby Digital.DTS– Rich input/output– Use digital signal type and has no soundA/V ReceiverA device of implementing home theater more conveniently withradio and A/V receiver embeded in DVD player.