What is Castle Level?


Please see below for examples of our current Castle level modifications.

Polk Audio (Click your model)

SDA Series
SDA1C
SDA 1A

RTA Series
RTA15TL

Monitor Series (Vintage)
Monitor 10

Allison Loudspeakers 
Model 6

Disclaimer: The aforementioned modifications are not endorsed by the respective manufacture.

Please see below for examples of previous archived work. Please note modifications are performed on a case by case basis and not sold as completed skus.

Polk Audio (Click your model)
RT Series
RTiA7
RTiA9
CSiA6
CSiA5

LSi Series
LSi9
LSi15

Monitor/TSi Series (Current)
CS10

Definitive Technology (Click your model)
PM900

Disclaimer: The aforementioned modifications are not endorsed by the respective manufacture.
Website Builder