A sound level limiter with a wide range of applications, including speaker protection, hearing protection when listening with headphones, and compliance with noise regulations.
By eliminating ""unauthorized"" excessive sound pressure levels, it provides strict level control and great peace of mind to users in three different areas.
Hearing Protection
It controls the level of a dedicated headphone output to protect the hearing of people who regularly wear headphones, such as DJs, sound engineers in recording studios, and students listening to audio. An additional connector on the back can be used for remote data logging or triggering external warning devices.
Regulatory Compliance
The SL22's precise calibration and volume control help venues such as clubs, theaters, pubs, schools, and universities comply with local government noise regulations.
Compliance with local government regulations is extremely important. While many products on the market often take the form of a simple switch that turns the power off or disconnects the speaker, the SL22 is different. It controls the volume in a transparent and unobtrusive way, providing natural operation. It's not only responsive and versatile, but also provides secure control that means it's extremely difficult to tamper with. Other features include remote volume control and connection to a fire alarm system, which can automatically lower the volume and make the alarm more noticeable in case of fire.
Protect your speakers
By catching unwanted signals such as ""bangs"" and ""pops,"" it prevents damage to the speaker chassis, drivers, and amplifier electronics.
Damage to speaker cones and amplifier electronics should be avoided in any venue. The SL22 is specifically designed to transparently catch these unwanted SPLs and protect your gear.
■Key Features
? Limited speaker/headphone output
? Suppresses ""unauthorized"" volume levels once installation and calibration are complete.
? High-quality sound even during protection processing
? Large LED level indicator for easy monitoring of signals and warnings
? Output time-delay relay for clean power-up/down
? Quick and easy installation
? Tamper-evident plate allows restriction of access to settings
? Security label provided for further protection of calibration settings and to indicate evidence of tampering
? Tamper-evident bracket (sold separately) for locking in XLRs to comply with local government regulations.
* External control of adjustment and mute for connection to fire alarms or remote operation
* Trigger output in PROTECT mode
* Logging of inputs in both ALERT and PROTECT status
■Specifications
INPUT
...Input Impedance 20k Ohms
OUTPUT
...Output Impedance 100R
...Headphone Output Impedance 110R
...Gain Range @ Output -30dBu to +44dBu
...Recommended Output Level 0dBu
...Crosstalk > 90dB at 10k Hz
...Noise -93.5dB (Unity gain / 22Hz-22kHz)
Power Requirements 115Volt or 230Volt at 50-60Hz, 9VA
すべてのレビューを見る