When I was caught out by this problem the level of info described in
Sebastian's post wasn't in the manuals so I hadn't thought about it - tho'
I *should *have done, given the fact that I designed one for a magazine
some 4 decades ago :-(
Dave
On 15 October 2015 at 10:31, Sebastian Gabler <sebastiangab...@gmx.net>
wrote:
> That's specifically true for the 8010s. Their max SPL @ 1 m is app. 105 dB
> per pair, but the long term SPL is only 91 dB, expressly stated that it is
> because of the protection circuit in the manual.
> That being said, with 32 speakers, the SPL is 4 time higher than for 2.
> That's far beyond comfort zone for any listener for the specified values.
>
> Sebastian
>
> Am 15.10.2015 um 10:38 schrieb Dave Malham:
>
>> One thing I would be careful of on small, active speakers is the
>> protection
>> circuits. Sophisticated protection circuits thermally model (or even
>> sense)
>> the drivers and reduce the gain if one of them is getting near the limits.
>> This can cause weird, signal dependent, image distortions when one of the
>> speakers is driven harder and drops in gain (usually in the bass). Because
>> the speaker doesn't just switch off, which you would hear, but simply goes
>> a bit quieter, in an Ambisonic array of, say, 16 speakers, this doesn't
>> shout out at you but just subtly distorts the image. Can be a really
>> annoying and difficult to diagnose problem, especially when you haven't
>> heard it before (been there, done that, got the T-shirt). With passive
>> speakers, this doesn't happen - you just get the rattle from the cone
>> hitting the endstops or the scrape of the melted voice coil against the
>> sides of the air gap but at least the first of these warns you when you
>> are
>> near to damaging the speakers. Note that with small active speakers in
>> particular, getting to 'normal' monitoring levels gets you right into the
>> zone where the protection will keep cutting in and out :-(
>>
>> Dave
>>
>>
>> On 14 October 2015 at 18:20, Charles Veasey <charlesjvea...@gmail.com>
>> wrote:
>>
>> Hello,
>>>
>>> We're upgrading our current 15.2 (Behringer) loudspeaker array. I'd like
>>> to
>>> get more spatial resolution and higher quality speakers. Right now I'm
>>> thinking about (32) Genelec 8010 and (2) Genelec 7050B subs.
>>>
>>> However, I have some concerns about the Genelec 8010s selling at only
>>> $350.
>>>
>>> Does anyone have experience with these speakers, or have advice for my
>>> situation?
>>>
>>> thanks,
>>> Charles
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>>
>>
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--
As of 1st October 2012, I have retired from the University.
These are my own views and may or may not be shared by the University
Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK
'Ambisonics - Component Imaging for Audio'
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