Drawmer SP2120
SPL-Controlled Security System. Limitador / Protector de altifalantes.
Referência Interna :
A/012471Mais informação
| Marca: Drawmer |
Conform to regulations in minutes, with key-holder access only
The Drawmer SP2120 Speaker Protector offers both strict level control and complete peace of mind to contractors, installers and venue operators. As its name suggests, the 1U two-channel processor eliminates the possibility of unauthorised excessive sound pressure levels on speaker systems — whether caused by spikes and pops in the signal chain or by over-enthusiastic DJs or engineers — helping to prevent damage to both drivers and amplifier electronics.
By giving access only to key-holders, such as the maintenance engineer and venue manager, the SP2120 ensures that maximum levels cannot be altered once installed. It provides an effective, tamper-proof way for clubs, theatres, pubs, schools and universities to comply with local legislation and Noise at Work regulations.
Secure Operation
An integral front-panel security lock ensures that only authorised key-holders can make adjustments. When unlocked, two installer presets are available: the first calibrates the 16-segment left/right bargraphs to the incoming audio and sets the threshold where protection begins; the second defines the maximum volume level the system can reach.
If incoming levels exceed this limit, the SP2120's transparent protection circuitry maintains the set volume without degrading sound quality. Its signal path uses multiple time-constant circuitry and automatic gain control (AGC) to handle transients intelligently, allowing brief overloads to sound louder without actually increasing SPL.
Intelligent Design
Developed in response to installers dissatisfied with crude, switch-type protection systems - which simply cut power or disconnect speakers - the SP2120 provides a far more elegant and non-disruptive solution. Built on over 25 years of Drawmer's experience in dynamic processing, it delivers rock-solid performance, reliability and sound quality that meet the demands of today's venues and noise control regulations.
Features:
- Protects speakers, amplifiers and venue from excessive sound levels
- Key-holder access only with tamper-proof front-panel lock
- Fast, simple installation and calibration
- Tamper-Proof bracket available separately to lock XLRs and meet local authority regulations
- Dual 16-segment L/R bargraphs for quick, at-a-glance level monitoring
- Transparent protection circuitry maintains audio quality at all times
- Eliminates unauthorised level changes and sound system abuse
- Minimises repair costs, call-outs and venue downtime
- Optional isolation transformer outputs
- Classic Drawmer build quality with rugged steel chassis and aluminium front panel
- Designed and handmade by Drawmer in the United Kingdom
Specifications:
| Description | Value | |
|---|---|---|
| INPUT | Input Impedance | 20k Ohms or greater |
| Max Input Level | +21dBu | |
| CMR (22Hz to 22kHz) | >40dB | |
| OUTPUT | Output Impedance | 100 Ohms |
| Output Level | Variable. Infinity to +14dBu | |
| Balance (22Hz to 22kHz) | >40dB | |
| Isolating Transformers can be fitted in Output stage | ||
| CROSSTALK | L/R @ 20kHz | -90dB |
| NOISE | Unity Gain ref +4dBu / 22Hz-22kHz | -103dB |
| Description | Value | |
|---|---|---|
| POWER REQUIREMENTS | 230Volt or 115V at 50-60hZ | 9VA |
| FUSE RATING | @ 230Volt | T50mA |
| @ 115Volt | T100mA | |
| Conforming to IEC 127-2 | ||
| FUSE TYPE | 20mm x 5mm, Class 3 Timed-Blo, 250Volt working | |
| CASE | Depth | 160mm |
| Width | 482mm | |
| Height | 44mm | |
| Weight | 2.2kg |
Todos os preços apresentados incluem IVA à taxa legal em vigor para Portugal: taxa de 13% em instrumentos musicais e taxa de 23% nos restantes produtos