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In the Forum: Horn-Loaded Speakers
In the Thread: Eventually - a reasonable midbass horn from GOTO
Post Subject: 24 Hz for SG146LD4Posted by MINGSU on: 11/24/2007

Hi Romy,

I spoke to Mr. GOTO about your question today and he told me that the reasonance of SG145LD4 is at 24Hz.  If customer want to build a 20Hz, he will recommend to use at least 2 driver per channel but best to use 4 driver per channel to shorten the horn length.  I visited a GOTO customer today who use two SG38WSSP(the top of line GOTO 15* woofer) per channel on a ceiling bass horn of 28Hz cutoff frequency.  It is not a 20Hz horn but sounds very, very good.  Mr. GOTO said, if this customer use 4 driver per channel, he can certainly build a true 20Hz horn.

I guess that you are right about using single driver for a 20Hz horn is not a real practical application, even it is a GOTO driver.  Most of GOTO bass horn customer use dual driver per channel, only two GOTO user use quad driver per channel for bass horn.

Will post more infomation and pictures after I retrun back to USA.

-Ming

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