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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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CONNECTING A SPEAKER SYSTEM# X" X/ ^* m/ y+ L, M
You amplifier has two sets of SPEAKER SYSTEM terminals, which
/ T( f2 B/ ^, dmeans you can connect either one or two speaker systems.2 y4 v* M6 q, b; B' l
NOTE:' j6 g }! { G% U
Turn the kobes on the speaker terminals by hand. (Do not use a
+ R9 Y9 V J, f4 F( p( ptool to turn the knobs.): Y9 R, c1 G; B' o5 _7 D
• Connecting One Speaker System
& E: J5 L; e) a, q/ A8 D. [& `* yNote the following points when connecting a single speaker system." X8 G; r7 C& A1 J/ n
— The impedance of each speaker should be between 8 and 16) m* |1 k( @) {7 u
ohms. Connecting a speaker with impedance less than 8 ohms5 P! o. n' }5 j) J5 a* b2 U4 w
can causes activation of the amplifier’s protection circuitry during
7 t+ _2 [; ?1 j7 i0 bplay, making normal stereo playback impossible.
$ J* k. x5 ^ O* v9 N— Connect the right channel speaker to the amplifier’s R terminals,2 ^ j: \( X" B# b$ O& g' c7 \
and the left channel speaker to the L terminals.$ U/ p; C, _* U
— The output terminals have positive (+: red) and negative (–: black)# O/ x& ~; z D |! s) ^/ U/ c
polarity. Each speaker must also have the same polarity (+/–).$ n) e' k: u# U
Be sure to match the polarity of the amplifier with that of the
! E' }8 Y" I3 B: Q( O' W0 p, z. `speakers (+ with +, – with –) when making connections.
p5 k% n1 P+ Y% D3 f• Connecting Two Speaker Systems
. E9 B9 h9 I ~) `! HMake sure that the impedance of each speaker is at least 16 ohms.
' M7 ~6 d8 E! ^6 d7 J* H( _Connecting a speaker with impedance less than 16 ohms can causes4 z+ a; G3 l, Y9 p& |6 W8 n& L
activation of the amplifier’s protection circuitry during play, making
& e: `! f( j snormal stereo playback impossible.
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说明书里没有写到任何4欧的事情,还明确说小于8欧会进行保护,我看其他功放都是要求不低于4欧,同时602/601也都是4-8欧的箱子,问下surerman这个有影响吗
. _* e E3 c" Y9 g另外,在马兰的大陆主页上却有PM7200在4欧时输出功率为150W的规格项,很是矛盾啊3 U7 |) s: J) G7 o9 \) l" o
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