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<blockquote data-quote="Art Welter" data-source="post: 203597" data-attributes="member: 52">Alan,No, that appears to be a Hornresp simulation with similar frequency response to the Keystone sub.The upcoming Keystone B-Low (or C-Low if it does not quite reach the low corner of 31 Hz ;^) ) will be 5&quot; taller, and have around 5 Hz lower extension.The picture below shows the Keystone below a small format Paraline line array, with wave-guide extensions. The wave-guides pack flat, using ratchet straps for solid attachment, and result in 3-6 dB more SPL, like more than doubling amplifier power, except with no power compression. [ATTACH]203598[/ATTACH]&nbsp;The twenty eight 8&quot; horn loaded drivers (and ten 3&quot; diaphragm HF drivers) above the pair of Keystones run out of headroom at the same SPL for most genres of live music.I&#039;m looking forward to &quot;a whole lot of shakin&#039; going on&quot; after I finish a half dozen Keystone B-Lows :^).Art</blockquote>

[QUOTE="Art Welter, post: 203597, member: 52"] Alan, No, that appears to be a Hornresp simulation with similar frequency response to the Keystone sub. The upcoming Keystone B-Low (or C-Low if it does not quite reach the low corner of 31 Hz ;^) ) will be 5" taller, and have around 5 Hz lower extension. The picture below shows the Keystone below a small format Paraline line array, with wave-guide extensions. The wave-guides pack flat, using ratchet straps for solid attachment, and result in 3-6 dB more SPL, like more than doubling amplifier power, except with no power compression. [ATTACH=CONFIG]203598.vB5-nodeid=203598[/ATTACH] The twenty eight 8" horn loaded drivers (and ten 3" diaphragm HF drivers) above the pair of Keystones run out of headroom at the same SPL for most genres of live music. I'm looking forward to "a whole lot of shakin' going on" after I finish a half dozen Keystone B-Lows :^). Art [/QUOTE]

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