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<blockquote data-quote="Peter Morris" data-source="post: 211681" data-attributes="member: 652">Hi Leon,The design concept for the PM60/90 is quite different to the MT122.The PM90 has a dispersion of 90 x 50 degrees. It is designed to be light weight and pole mountable and cross over to the sub at 100Hz. The design idea was maximum SPL and sound quality on a stick. If size and weight were not an issue I would used a different design.In comparison the MT122 is much bigger, heavier and has a dispersion of 40 x 25 degrees and does not go as low. As such I expect it will be a little louder, but you will need to cross over some where above 125-150Hz. I suspect it was designed to be used in pairs. When you do a SIM with two MT122’s per side the response looks quite smooth. The MT122 is also a straight horn which should provided better HF performance and allow a higher crossover frequency and the use of &quot;standard&quot; compression drivers.To push as much performance as possible out of the PM90/60 requires reasonably complex processing and equalisation.&nbsp; The MT122 will be much simpler to process.</blockquote>

[QUOTE="Peter Morris, post: 211681, member: 652"] Hi Leon, The design concept for the PM60/90 is quite different to the MT122. The PM90 has a dispersion of 90 x 50 degrees. It is designed to be light weight and pole mountable and cross over to the sub at 100Hz. The design idea was maximum SPL and sound quality on a stick. If size and weight were not an issue I would used a different design. In comparison the MT122 is much bigger, heavier and has a dispersion of 40 x 25 degrees and does not go as low. As such I expect it will be a little louder, but you will need to cross over some where above 125-150Hz. I suspect it was designed to be used in pairs. When you do a SIM with two MT122’s per side the response looks quite smooth. The MT122 is also a straight horn which should provided better HF performance and allow a higher crossover frequency and the use of "standard" compression drivers. To push as much performance as possible out of the PM90/60 requires reasonably complex processing and equalisation. The MT122 will be much simpler to process. [/QUOTE]

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