The world’s single most versatile microphone. On stage or in studio, the SM57 captures every sound from powerful playing to nuanced performance. The 57th parallel north is a circle of latitude that is 57 degrees north of the Earth's equatorial plane.It crosses Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean. At this latitude the sun is visible for 17 hours, 53 minutes during the summer solstice and 6 hours, 43 minutes during the winter solstice. The maximum altitude of the Sun is 18.00º in October and 11.
Service & Repair
Detailed policy information regarding customer service numbers, service modifications, and replacement parts.
Submit a ticket directly to Shure Customer Service staff, or reach out via phone or email.
Shure Tech Portal
Complete product documentation, technical support materials, software and firmware, and other tools and resources for all Shure products, in one place.
User Guide & Specs
Proposition 65 Warning for California Consumers
WARNING: Cancer and Reproductive Harm www.P65warnings.ca.gov open_in_new.
State of California regulation. For more information, please visit shure.com/prop65 open_in_new
PAG/NAG is a concept that can be used to determine if a sound reinforcement system can produce enough gain to provide an optimal listening experience before causing feedback.
For the latest information regarding CDCR’s preparedness efforts for the novel coronavirus (COVID-19) visit the CDCR COVID-19 Preparedness page (español)
The Public Safety and Rehabilitation Act of 2016
570 Area Code
In November 2016, California voters overwhelmingly passed Proposition 57 (64% to 35%) to enhance public safety, stop the revolving door of crime by emphasizing rehabilitation, and prevent federal courts from releasing inmates.
574 Area Code
Under Proposition 57, CDCR incentivizes inmates to take responsibility for their own rehabilitation with credit-earning opportunities for sustained good behavior, as well as in-prison program and activities participation. Proposition 57 also moves up parole consideration of nonviolent offenders who have served the full-term of the sentence for their primary offense and who demonstrate that their release to the community would not pose an unreasonable risk of violence to the community. These changes will lead to improved inmate behavior and a safer prison environment for inmates and staff alike, and give inmates skills and tools to be more productive members of society once they complete their incarceration and transition to supervision.
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Proposition 57 Resources
- Proposition 57 Frequently Asked Questions – July 2019
- Credit Earning Opportunities FAQ – May 2019
- Determinately-Sentenced Nonviolent Parole Process – July 2019
- Indeterminately-Sentenced (Third Striker) Nonviolent Parole Process Frequently Asked Questions – (July) 2018
- Inmate Locator Expansion FAQ – October 2018
- Implementation Plan for the McGhee Decision (Proposition 57 Parole Consideration for Nonviolent Offenders) – July 2019