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Re: free-field speaker

Hi Yale,
What Tony said applies probably to most "studio monitors". Strongly built, and sounding accurate and neutral. Genelec is a very well known brand. I personally prefer Adam-Audio though I don't use them for research at this point. But I find the sonic quality impeccable, and current versions can go up to about 50 kHz declared.  For research we use (among other) Tannoy Reveal 6, these are also (discontinued) studio monitors, but unpowered, so they need an amplifier. They can go up to 50 kHz as well (declared), and I measured significant output at least up to  35 kHz. Some more expensive models of Tannoy monitors have concentric drivers, that is, the tweeter is placed in the center of the low-frequency driver, which is supposed to provide better blending of the frequency ranges, especially at close distance.
Hope this helps,
On 18 April 2012 17:34, Tony Miller <antonio.miller@xxxxxxxxx> wrote:
Genelec makes a great line of powered loudspeakers that are well suited for laboratory use.  They are line level input, so you can drive them directly from a high quality sound card and are very accurate, loud, easy to use and virtually indestructible.  The downside is, of course, they can be expensive depending on your requirements (anywhere from US$369 to $5639 each). 


Hope this helps.

On Wed, Apr 18, 2012 at 8:54 AM, Yale Cohen <yaleecohen@xxxxxxxxx> wrote:
Hi all,

Does anyone have any recommendations for a free-field speaker [range: 0.5kHz - 15kHz]?


Yale E. Cohen, Ph.D.
Associate Professor
Department of Otorhinolaryngology: Head and Neck Surgery
University of Pennsylvania School of Medicine
3400 Spruce - 5 Ravdin
Philadelphia, PA 19104

Office: B50 John Morgan Building

E-mail: ycohen@xxxxxxxxxxxxxxxxxx
Phone: 215 898 7504   
FAX: 215 898 9994
URL: http://www.med.upenn.edu/auditoryresearchlab/