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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
( i1 L$ A* m' @9 _ p6 pYou amplifier has two sets of SPEAKER SYSTEM terminals, which
) }% l6 l" E: ?! Wmeans you can connect either one or two speaker systems.* ~1 L, x- s2 u- Y
NOTE:4 Q; W6 ]9 D- l/ J1 ?
Turn the kobes on the speaker terminals by hand. (Do not use a
" y- J w6 F7 }; P7 t C9 ptool to turn the knobs.)6 G1 K$ K7 Z/ y
• Connecting One Speaker System ?3 i' h l, k) F0 w
Note the following points when connecting a single speaker system.: f9 k$ r6 A" d2 s4 O2 B) j
— The impedance of each speaker should be between 8 and 16
7 v7 Y7 g2 M7 ]6 F+ yohms. Connecting a speaker with impedance less than 8 ohms
# b4 c8 a' C3 I* t0 [' }can causes activation of the amplifier’s protection circuitry during B" e- H, u7 O* w# v/ I
play, making normal stereo playback impossible.) k* V: `, D; y1 Q! X& i! d- o( L
— Connect the right channel speaker to the amplifier’s R terminals,
$ p% S* q9 V' g- Dand the left channel speaker to the L terminals.) q' z# E& o P: z3 G6 `
— The output terminals have positive (+: red) and negative (–: black)
8 f7 p) t2 ~) z9 Ppolarity. Each speaker must also have the same polarity (+/–).+ }2 p! a4 a/ v! }
Be sure to match the polarity of the amplifier with that of the
% X6 o' [! l$ xspeakers (+ with +, – with –) when making connections.
5 ]0 k# ]" W, u' J• Connecting Two Speaker Systems
$ S! E) q, |1 _+ H' [# MMake sure that the impedance of each speaker is at least 16 ohms.
B% E N S9 L7 t+ \Connecting a speaker with impedance less than 16 ohms can causes
7 E1 V6 A0 |/ ~! N! `. Tactivation of the amplifier’s protection circuitry during play, making
2 |" | O! x* T, bnormal stereo playback impossible.3 N& I3 Y( s9 q
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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2 X& C+ j' f5 V- P# l/ [
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$ Z G: j. V0 e$ | G
2 D4 |. Z" o- S2 L& ^" Z3 h4 N) a0 a; ?晕了 |
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