Question about Mordaunt Short 302 Main / Stereo Speaker

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Mordaunt Short MS5-30

I have just aquired a set of MS5-30 and they have 2 set of terminal (2red & 2black) marked treble and bass. Is it ok to parallel these up or is some crossover cct required.

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  • r_drain Jul 05, 2008

    Thanx robotec
    Would you know the max RMS power these babys can handle?


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There is a safty device inside speaker that cut it out before blowing. i know ive done it, they come back on after 10 mins

Posted on Dec 12, 2008

  • johnnyfox1 Dec 12, 2008

    ive replaced both tweeters after one stoped workin, lockwood audio, are the only people that know or have anything to do with these speaker, the mordaunt short 10 years ago has noting do do with the company that does them now, they were gone for a few years, some just used the name


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Hi r_drain

great choice of speaker, always liked MS gear. They are designed to be biamped, or rather have a separate amplifier for bass and treble frequencies. You can just jumper between the terminals. They originally cam with a plate that connect the 2 black and red terminals together making effectively one black and one red. The speaker still has a crossover in line internally.


Posted on Jul 05, 2008

  • Graeme Ross
    Graeme Ross Jul 05, 2008

    wow, came up blank on that one. Have checked all my usual haunts on audio forums, but there is virtually no info about at all. They may not have been a widely distributed model. I say that they are capable of handling what ever power they can handle. Speakers are most often damaged by being underpowered. If an amp is driven to clipping, a 20 watt amp can burn 200 watt voice coils. Using a decent sized amp means you don't run out of power. Transient power handling is high on most small well made speakers. What sets the limits generally is the mechanical excursion of the woofer. If you drive the boxes to the point they are running out of "mechanical headroom" then that is too much power. You will hear this sort of problem as loud clacks from the woofer(voice coil hitting the magnet!!), or muddy distorted bass. So unless you are listening to death metal, I would be confident in hooking them up to say at least 100rms.

    I use a QSC 500wrms/ch power amp to drive my Alesis Studio One monitors(rated 150rms) on the end of my console for recording bands, never had a drama. The MS 5-30 are perhaps not as commercially tough as that, but with care, they should handle any sort of power. Just don't let teenagers use the rig!! :)


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