PCDVD數位科技討論區 - 輸出功率越大=音質越好?

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- - 輸出功率越大=音質越好? (https://www.pcdvd.com.tw/showthread.php?t=183157)

引用:

Originally posted by disturb
若能符合tommyc大所說的擴大機，一般稱為大電流擴大機，要價都不便宜！
我記得Denon PMA-2000III跟Onkyo SR600有這些特性^^

還有Denon PMA-2000III跟之前的I、II版本有何差別呢？跟Marentz 的PM17SA
相比較之下，何者聲音走向較溫柔細膩而不失萬種風情呢？

還有請教tommyc大，PM17SA與PM14SA的差別在哪呢？若是買來搭配Usher
的高階書架喇叭(如X-719、X-718、X-708、K728)等..適合嗎？..........^^

或者是有其他更好的選擇呢?......:D

哈哈... 您提的我都沒用過..所以無法告訴您..不過大電流的擴大機都不便宜是真的..日系的擴大機很多都是標示6歐母的RMS非8歐母的, 且都是用EIA的測試規格去測的... 也就是只測1KHz而已, 不是像FTC測試規格用20HZ ~ 20KHz 來測, 也是因為如此, 日系擴大機標示的功率大都有灌水...

引用:

Originally posted by disturb
若能符合tommyc大所說的擴大機，一般稱為大電流擴大機，要價都不便宜！
我記得Denon PMA-2000III跟Onkyo SR600有這些特性^^
D

Does Onkyo TX-SR600 really output only 35 watts per channel?
http://www.avsforum.com/avs-vb/show...5&highlight=600

引用:

Originally posted by zoco
Does Onkyo TX-SR600 really output only 35 watts per channel?
http://www.avsforum.com/avs-vb/show...5&highlight=600

maybe you misunderstand what they mean...
But it does mention something important that after 2000 the power supplies of Onkyo receivers had been changed and the volts going into all channels are reduced which means much less watts. That's a really bad news for the users. Before year 2000, Onkyo receivers had power supplies to output the rated watts to run all channels.

By the way, the specification of Onkyo TX-SR600 is as follows:

‧145W／每聲道（前置），145W（中置），145W／每聲道（環繞聲道），145W（後環繞聲道），6Ω，JEITA‧總諧波失真：0.08％（所有聲道，額定功率時）‧所有聲道均為全帶寬‧寬頻放大技術（WRAT）‧頻率響應：10Hz–100kHz（+1，–3dB）‧無測量設置‧大電流、低阻抗（6Ω）驅動能力‧所有聲道的放大電路均採用分立元件組成。優化增益音量控制電路‧有隔離的重型電源變壓器‧優質的衝壓鋁制散熱器‧低頻效果聲道（LFE）電平控制‧高低音調控制。分頻點調節（80／100／120Hz）

Onkyo TX-SR600的說明書中有寫到，在8歐姆時為80W