D'Addario Helicore Orchestral Bass String Set - 3/4 Scale, Light Tension Violin & Viola Strings The CM-140 and CM-150 meet

The CM-140 and CM-150 meet the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more

Including tools to measure your acoustic environment or verify the behavior of your external digital devices

70Hz high pass filter

and tap tempo with an LED indicator and ratio option

allowing multiple units to be used within the same building

D'Addario Helicore Orchestral Bass String Set - 3/4 Scale, Light Tension Violin & Viola Strings The CM-140 and CM-150 meetZyex bass strings use a synthetic Zyex core that provides gut like rich and complex tone, combined with power and clarity for both pizzicato and bowing. Pitch stability is excellent after minimal break in time. Zyex bass strings were developed primarily to offer outstanding pizzicato attacks and sustain, as well as superb bowing response. Get the sound and feel of gut strings with more evenness, projection and stability than real gut. Zyex is a new