Drawmer SL22 Sound Level Limiter

Drawmer SL22 Sound Level Limiter

The Drawmer SL22 is a versatile and reliable sound level limiter designed to protect audio systems, ensure compliance with noise regulations, and safeguard listeners’ hearing. Whether it’s controlling sound levels in clubs, schools, or other venues, or protecting speaker systems from damage, the SL22 offers precise control and peace of mind. It provides secure sound level management without compromising audio quality, making it the ideal solution for professional environments that need to maintain safe and consistent sound pressure levels.

Safeguard Your Hearing

The SL22 helps conform to Noise at Work Regulations by controlling users’ exposure to audio while at work, reducing the risk of hearing damage. It includes a dedicated headphone output with level control to protect DJs, sound engineers, and students who listen to audio on a regular basis. Additional connectors on the rear panel provide options for remote data logging or triggering external warning devices.

Conform to Regulations

The precise calibration and volume control of the SL22 ensure that venues like clubs, theatres, pubs, schools, and universities can comply with Local Authority Noise Regulations. Unlike other products that might cut off power or disconnect speakers, the SL22 provides a smooth and unobtrusive volume control that is transparent to listeners. It also includes features like remote volume dimming and integration with fire alarm systems, reducing the volume during emergencies to enhance the clarity of alarm signals.

Protect Your Speakers

The SL22 prevents damage to speaker drivers and amplifier electronics by catching unwanted sound signals like sudden bangs and pops. Whether in a large arena or a smaller venue, the SL22 ensures speakers are protected, saving money on repair costs and reducing system downtime. The limiter provides consistent protection to maintain the performance and reputation of any sound system.

SL22 Features

The SL22 benefits from Drawmer’s 30+ years of experience in designing industry-standard dynamic processors, building upon the success of its sister product, the SP2120 Speaker Protector. It features an integral security plate to ensure that volume adjustments can only be made by authorized personnel, with front-panel presets for calibrating the protection threshold and setting the maximum volume level. The transparent protection circuitry maintains consistent sound levels without compromising audio quality.

Connectivity and Control

The SL22 features rear panel terminal blocks that provide enhanced connectivity. It includes standard input and output XLRs that can be locked with an optional tamperproof bracket, as well as a limited headphone output. The SL22 can also be controlled externally via a fire alarm system or operator, and includes connections for data logging and external visual indicators, such as wall-mounted lights. These versatile features make the SL22 an ideal solution for environments with strict sound level management requirements.

Features

• Limited speaker and headphone outputs.
• Once installed and calibrated, completely eliminates the possibility of unauthorized volume levels.
• No sound quality loss even during protection processing.
• Large LED level indication for at-a-glance monitoring of signals and warnings.
• Fast, simple installation.
• Tamper-proof bracket (available separately) to lock in the XLRs and conform to Local Authority regulations.
• Time delay relays on outputs for clean power up/down.
• A security label is supplied to further secure the calibration settings and show evidence of tampering.
• Reduces call-out costs of sound system service/repair engineers, sound system down time, and the consequential loss of venue income, as well as the reputation of the venue.
• External control of Dim and Mute for connection to fire alarms or remote operation.
• Trigger output when in PROTECT mode.
• Logging inputs for both ALERT and PROTECT status.
• Classic Drawmer build quality with rugged steel chassis and aluminum front panel.
• Designed and manufactured by Drawmer in the UK.

In the interests of product development, Drawmer reserve the right to modify or improve specifications of this product at any time, without prior notice.