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SKU

8588

Drawmer SP2120 Brickwall Limiter

Limiter, brickwall/speaker protector
MFR# SP2120

Product Description

The new Drawmer SP2120 Speaker Protector offers both strict level control and tremendous peace of mind to the contractor, installer and venue in the knowledge that only the maintenance engineer and the venue manager hold a key.  As its name suggests the 1u, two channel processor eliminates the possibility of ‘unauthorised’ excessive sound pressure levels on speaker systems which could result in damage to both chassis drivers and amplifier electronics.  The unit also gives a wide variety of venues, such as clubs, theatres, pubs, schools, universities etc. the opportunity to comply with the local legislation regarding noise levels.

Features:

  • Key holder access only
  • Takes only minutes to install
  • Dual 16 segment Left/Right bargraphs for ‘at a glance’ level metering
  • ‘Protection’ processing 16 segment bargraph display
  • No sound quality loss even during heavy protection processing
  • Once installed and calibrated completely eliminates the possibility of ‘unauthorised’ volume levels
  • Eliminates sound system abuse and the resulting cost of chassis speaker re-cones, HF diaphragm replacements and amplifier repairs
  • Reduces ‘call-out’ costs of sound system service/repair engineers
  • Reduces sound system ‘down time’ and the consequential loss of venue income
  • Isolation transformer output option

The SP2120 front panel features an integral security lock to ensure that adjustments to maximum volume levels are implemented by key holders only. In ‘unlocked’ mode two front panel pre-sets are exposed and available for adjustment by the installer.  The first calibrates the 16 segment Left/Right bargraphs to the incoming audio and dictates the point at which ‘protection’ processing commences.  The second sets the absolute volume level to which the sound system is allowed to perform. If the SP2120 receives increased signal levels, the transparent ‘protection’ circuitry is activated which maintains the specified system volume level without degradation in sound quality.

The SP2120 greatly benefits from Drawmer’s 25 years experience in designing industry standard dynamic processing devices.  Its signal path combines a mixture of ‘multiple time constant’ circuitry and automatic gain control (AGC) which allow small overloads to sound louder - even though they’re not. Its concept and development was encouraged by Drawmer distributors and installers dissatisfied with other protection systems currently available.  These often take the form of a crude switch, either turning off the power or disconnecting the speakers, both of which are ‘disruptive’ in any event.

The SP2120 is intended to be inserted in the sound system immediately prior to the amplifier stage.

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Dual-Channel
Chassis 19-inch Rack-mount
Rack Spaces 1u
Digital I/O No

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.