All New KA Series Commercial Backbores

Austin Custom Brass
$105.00 $75.00 (You save $30.00)
SKU ACB KA BB
Weight 1.00 LBS
Height 6.00 (in)
Width 6.00 (in)
Depth 6.00 (in)
Shipping $5.00
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Here are some very rough descriptions of the backbores:
 
As you can see the KA2 opens up much more quickly after the throat.
 
The KA1 opens up ok, but stays tight through almost to the end.
 
The KA3 opens up like KA1, but then opens up again like the KA2 at the end.  It has for me,  the most compression of the three backbores making it feel about one throat size smaller overall.
 
 

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Product Reviews

Score: 5 out of 5 (based on 2 ratings)
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5/5
KA3 w TA-z
Written by Doug Zimmerman on 24th Mar 2019

Trent's comments about the sizzle are spot on...this backbore really sparkles, but it is not so bright as to be annoying...there's still a real good core to the sound. The TA-Z top doesn't work for me, so I will be experimenting with other sizes.

5/5
KA1
Written by Tim Evans on 17th Mar 2019

I loved the A2 because of the great core sound it gave me. The KA1 takes my me to another level. The sound is crisp yet full with sparkle. Incredible! Oh and it gave me two more notes to my playable range just to show off it is the complete package. You have to try it!