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Technics SU-V2 keeps cutting out

I have a technics SU-V2 amp wired to 2 reli retro powerful bose speakers and the sound just cuts out for no reason (display stays on) ever so often im a bit of a novice and suspect the amp may not be powerful enough for the speakers but it sounds really great until it cuts out really need some help cheers

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  • britishgent Jan 23, 2008

    does this mean i need a new amp or is ther a cheaper solution

  • Anonymous Mar 12, 2014

    no audio out in speakers

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An amp will cut out if the output protection circuit kicks in. This circuit compares output power against the preset level. Each channel has it's own, independent protector. There are calculations that can be done, but for a novice the rule of thumb is to "never use a speaker with a power rating less than the amp AND a lower impedance than stated". Typically using a 4 ohm load on a 8 ohm system is inviting disaster. Even if the system does not become a smoke generator, you might notice that though "louder", the sound quality is deteriorated. Many "audiophiles" often hook up some combinations of speakers to have "surround" without really understanding that the collective impedance actually changes (generally lowers).

Posted on Jan 21, 2008

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