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[AUDITORY] loudspeaker phase response

A close copy of the BBC's LS3/5A was produced commercially by Goodmans Loudspeakers Ltd. as the "MAMBO".  It has the useful feature of being capable of giving an output acoustic pressure waveform that, for speech, corresponds to the input voltage waveform. These loudspeakers can still be found for sale on the web.
Good luck,

On 9 Mar 2017, at 05:52, valluri rao <vvrmrao@xxxxxxxxx> wrote:

Another superb mini monitor is the KEF LS50 which is a modern version of the classic BBC mini monitor - the LS35A.   They are coaxial and are well regarded by the BBC for their outstanding speech accuracy as was the LS35A in the past.  I have a pair of these at home for personal use.  They are however a bit pricey.  In the US they run about $1200/ pair from Amazon and I think about 800 Pounds in the UK.

Bob Rao

On Wed, Mar 8, 2017 at 1:09 PM, Neil Waterman <neil.waterman@xxxxxxxxxxxx> wrote:
Given the distance, listener to speaker, anything other then a single driver (coaxial would be my suggestion) would probably not be a good idea.

I have no idea of your budget, but the Equator Audio D5 is a very fine near-field monitor class coaxial driver loudspeaker. I believe they are only sold in pairs and retail for $499 here in the USA.

Good luck!

- Neil Waterman 

On Mar 7, 2017, at 5:26 PM, Chait, Maria <m.chait@xxxxxxxxx> wrote:

Dear Colleagues,
So far we have been conducting our behavioural experiments using high quality headphones, but for various reasons will need to shift to using free field sound presentation for some of our work.  I was hoping you might be able to recommend a high quality loud speaker to use for this purpose; Ideally, one that we can purchase easily from the UK.
Our requirements:  Experiments are conducted in a small-ish sound-proof booth, and we plan to position a single loudspeaker about 50-70 cm in front of the listener (space constraints prevents this from being any further away). Stimuli are spectrally rich ‘soundscapes’.  
My understanding is that we should prefer single cone speakers?
Many thanks,
Maria Chait PhD
Reader in Auditory Cognitive Neuroscience 
UCL Ear Institute
332 Gray's Inn Road
London WC1X 8EE