From: Tom Fine <[log in to unmask]>
> Someone said Mackie uses passive radiators on its "studio monitors"
> nowadays. Where is the passive radiator? I thought the Mackie
> monitors have ports, in the front. For what it's worth, I much
> prefer ports in front on the close-in small-box speakers, which
> is now just about standard practice in the professional monitor
> business (but not in the hifi business). The reason is that for
> close-in speakers, I want all the energy coming out the front,
> right at me. I want no action off the walls or spaces behind the speakers.
> -- Tom Fine
To this end, most control rooms and monitoring rooms have acoustically
deadened the room from the speaker plane and back. Near-field speakers
as you describe them will thus be the only source of the sound. The
cabinets the drivers are in also should not vibrate or radiate sound --
only the drivers should provide sound, either directly or through ports,
and sometimes shaped by horns, such as Altec used in the A-7 series.
These are the ways that the sound can be controlled. Home environments,
however, usually couple the speakers with the room for a listening
experience, rather than monitoring, so wise engineers also listen to
their results in these environments. A couple of times when I had the
opportunity to bring home some studio monitoring speakers I had used in
studios, I didn't like them. Accurate, but thin and unexciting! We
want accuracy in the recording -- let the consumer add the excitement.
Mike Biel [log in to unmask]
----- Original Message -----
From: "Goran Finnberg" <[log in to unmask]>
> David Breneman:
>> These had two bass "elements." A 10" woofer and a
>> 10" "passive radiator" which was another 10" speaker
>> cone sealed into the same airtight box as the woofer.
>> Is there any kind of sound engineering behind
>> such a design? Or was it just eye candy engineering?
> Best regards, Goran Finnberg