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ETC Source Four 36Degree

The fixture that changed the lighting industry. A complete rethinking of ellipsoidal technology, Source Four is the only fixture combining the energy-saving power of the HPL lamp with the patented dichroic reflector for the coolest beam on the market. That means your gels, patterns and shutters last longer, and your performance space stays cooler.

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The Advantage We Bring

Expert Team

Top-Notch Equipment

Custom Solutions

Seamless Execution

Key Features

  • Industry-Changing Ellipsoidal Fixture
A revolutionary redesign that set the standard for modern stage lighting.

  • HPL Lamp Technology
Delivers powerful output with significantly improved energy efficiency.

  • Patented Dichroic Reflector
Produces one of the coolest beams on the market by directing heat away from the light path.

  • Extended Gel & Gobo Life
Reduced heat keeps color gels, patterns, and shutters lasting longer.

  • Cooler Performance Space
Minimizes heat on stage for improved comfort and safety.

  • Precision Beam Control (36°)
Ideal for clean washes, sharp shutter cuts, and accurate pattern projection.

  • Professional Theatre & Event Standard
Trusted worldwide for theaters, concerts, studios, and live productions.

Delivery & Installatin

Professional Delivery Across the Greater Boston Area

We provide reliable delivery of professional AV equipment across Boston, Cambridge, Worcester, and surrounding cities. Our team coordinates directly with your venue to schedule precise delivery times, ensuring smooth access, efficient unloading, and a stress-free start to your event setup.

Full On-Site Setup & System Testing

Our experienced technicians handle complete installation, including equipment placement, cable management, sound calibration, and lighting configuration. Every system is thoroughly tested before the event begins to ensure flawless performance and professional presentation.

On-Site Technical Support

Need support during your event? Our technicians can remain on-site to monitor audio levels, manage visual systems, and quickly resolve any technical issues. This ensures your event runs smoothly while you focus on your guests and program.

Efficient Breakdown & Equipment Removal

Once your event concludes, our team returns promptly to dismantle equipment, pack components safely, and remove all gear from the venue. We manage the entire breakdown process efficiently so you don’t have to worry about logistics or cleanup.

Areas We Serve

Professional AV Production Across the Region

From corporate conferences and concerts to private celebrations and large-scale productions, Mass AV delivers professional audio, video, and lighting solutions across the Greater Boston region. Our team combines high-end equipment, experienced technicians, and seamless execution to create unforgettable event experiences.

  • Boston
  • Cambridge
  • Quincy
  • Brookline
  • Somerville
  • Newton
  • Waltham
  • Medford
  • Worcester
  • Dedham
  • Framingham
  • Lowell
  • Providence, RI
  • Manchester, NH
  • Nashua, NH

Ideal for

  • Weddings
  • Corporate Events
  • Conference
  • Private Parties
  • Outdoor Events
  • DJs & Live Performences

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Everything You Need to Know

Frequently Asked Questions

Below we have listed the most frequently asked questions and answers. Is your question not listed? Please feel free to contact us!

What types of events do you support?

We work with weddings, corporate events, brand activations, nightclubs, private parties, and large-scale productions.

Yes. All rentals include professional delivery, installation, testing, and post-event breakdown by our team.

Absolutely. We offer custom monograms, full vinyl wraps, lighting patterns, and visual configurations tailored to your event.

We work with weddings, corporate events, brand activations, nightclubs, private parties, and large-scale productions.

Dance floors are modular and scalable. We’ll size the setup based on your venue layout and guest count.

Yes. Our technicians remain available to ensure flawless performance throughout your event.

We recommend booking as early as possible, especially during peak wedding and event seasons.