LITTLE KNOWN FACTS ABOUT SIR303.

Use The 2 dials at The underside to established the cutoff frequencies which divide the 3 unique frequency ranges: Reduced, Mid and Higher.SIR3 now includes 33 fantastic HDIR versions produced by Pinguin Ingenieurbüro from Hamburg. The products are known for their superior dynamic range and their actual normal fidelity.Select "Pre" if you want the