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Pm7200说明书里指出连接的箱子阻抗一定要在8欧以上是怎么回事?
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; _* v+ u$ i. E7 K0 t+ v- t, YCONNECTING A SPEAKER SYSTEM, F8 w8 g$ ?0 K
You amplifier has two sets of SPEAKER SYSTEM terminals, which
! |5 Q$ b9 Z3 X3 |means you can connect either one or two speaker systems.
2 n1 C9 p) y- M: G+ S' d" UNOTE:8 ^) T/ L8 J3 D/ h2 t1 d9 o
Turn the kobes on the speaker terminals by hand. (Do not use a
/ N9 H0 N8 U: s" I% Itool to turn the knobs.)
^- [/ H; O$ Q+ _: ]) R3 q" K7 s+ W• Connecting One Speaker System6 P- i' q9 y- V7 }
Note the following points when connecting a single speaker system.
9 j# o" S! A, f+ g— The impedance of each speaker should be between 8 and 16
9 ^" y- A3 }3 Y3 |ohms. Connecting a speaker with impedance less than 8 ohms6 B* D% |# u/ ^. } F
can causes activation of the amplifier’s protection circuitry during
2 V2 K# w% {' Zplay, making normal stereo playback impossible.2 L# F3 x* U8 J
— Connect the right channel speaker to the amplifier’s R terminals,
, h" I5 L% C+ |5 Nand the left channel speaker to the L terminals.+ {3 }$ _ h1 d1 x/ O9 P G, Y
— The output terminals have positive (+: red) and negative (–: black)
' Z7 h9 f- I9 Gpolarity. Each speaker must also have the same polarity (+/–).
: x4 n5 W' P4 D, Q, D) z( W% CBe sure to match the polarity of the amplifier with that of the8 _4 b+ C5 @! d
speakers (+ with +, – with –) when making connections.3 G; _ w$ [. \8 b& c6 P- U
• Connecting Two Speaker Systems
' s0 A Y7 \, K# P7 F' ?4 lMake sure that the impedance of each speaker is at least 16 ohms.
" D0 g& C/ S% l cConnecting a speaker with impedance less than 16 ohms can causes
' I' W4 j. F7 g8 t! m8 }2 g# h5 |" Zactivation of the amplifier’s protection circuitry during play, making
/ E) p- \6 S7 I: P0 h0 @5 H& Tnormal stereo playback impossible.
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+ ^9 {* v* {( w& o说明书里没有写到任何4欧的事情,还明确说小于8欧会进行保护,我看其他功放都是要求不低于4欧,同时602/601也都是4-8欧的箱子,问下surerman这个有影响吗6 V. G3 D# P$ J, b6 ~; u9 B
另外,在马兰的大陆主页上却有PM7200在4欧时输出功率为150W的规格项,很是矛盾啊
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( D, L9 k. ~0 _晕了 |
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