摘要:TX-SR502是ONKYO(安桥)推出不久的最新款入门级AV接收机.当5.1声道的Dolby Digital和DTS分别发展出6.1声道的Dolby Digital EX和DTS-ES之后,各大主流AV功放(接收机)制造商便依据产品档次的不同,通常在中低档型号上配备5.1声道模式,而在中高级产品中才加入6.1声道模式.不过呢,近两年由于竞争激烈,新功能、新技术从高端产品向低端产品移植的速度加快了许多,纵观各大AV品牌,目前除保留一款最低价位的5.1声道AV功放来满足市场最底部的需求之外,其它中低档产品都无一例外地将6.1声道作为了标准配置,而中高级产品则以7.1乃至9.1声道、更多样化的DSP音场模式以及提高功放输出功率来拉开档次差距.
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