Reference Laboratory Looking Ahead in Pro Audio
Alpha Turbo System

Alpha α RSL Alpha MKII
High efficiency bi-amplified loudspeaker system ideal for applications requiring high sound pressure levels and strikingly clear sound. Featuring the two 12" horn loaded low-frequency loudspeakers with the removable phase plug, the 2" driver horn loaded with an exclusive design, the rigging hardware for fly array applications and the variety of connectors (EP-5, Speakon, EP-6), the RSL Alpha MKII becomes an indisputable solution for any contemporary audio professional application: concerts, large discotheques, outdoor venues and top class side filling.
The RSL Alpha MKII offers total phase coherence even with the most sophysticated array configurations. Combined with the RSL Sub 1000 MKII subwoofer, the system extends its frequency response down to 32Hz.
Here at Reference Laboratory we proudly call this the REFERENCE Alpha Turbo System MKII.
Ring Main Features
  • High SPL and sound quality
  • High quality/price ratio
  • Heavy duty metal handles
  • Internal steel frame and rigging points for "flying" arrays
  • High quality speaker cable included
  • Dedicated setup for digital processors
  • Protection grill and internal foam with very low acoustic absorption

Typical Applications
  • P.A. sound reinforcement (indoor and outdoor)
  • High power top class side-fill
Technical Specifications
Frequency Response
80Hz - 18KHz
6 plates/rings (3 top, 3 bottom)
SPL (1W/1m)
W 550mm (21.67")
H 1250mm (49.21")
D 660mm (25.98")
Net weight
85 Kg (187 lbs)
Low frequency
2 x 12", 800Wrms 4Ω
Protective grill
Black finished steel grill with internal foam
High frequency
2" Compression driver with
titanium diaphragm, 150Wrms 8Ω
Black heavy-duty paint
Crossover frequency
Coverage angle
70 H x 50 V
* Suggested speaker cables by Reference #RPC09
Total power handling
EP-5 (standard)
EP-6 or Speakon (upon request)

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Events & Fairs

March 26 2017:
Custom Shop Milano
Palazzo delle Stelline
Corso Magenta
Milan - Italy
STAND 212-2013

Cables Info

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