ETS InstaMusician Balun
Audio/Video Balun with (3) XLR-F Sends Plus (1) BNC to RJ45 Jack


The ETS InstaMusician™ Balun (model no. SDS904) enables both audio and composite video signals to be sent over a single Cat5 or better cable. This audio/video balun is a compact, versatile, and passive component that has bi-directional capability.

NOTE: The image above is for illustrative purposes and shows both the InstaMusician SDS904 and SDS903. This model is the SDS904 only. The SDS903 is sold separately .

Since the InstaMusician Balun is a passive unit, you do not need power. The balun accepts ‘mic’ level, line level, analog or digital audio and supports phantom power when using shielded Cat5e or Cat6 cables.

This lightweight balun is well suited for many applications, including theater orchestras, churches, schools, classrooms, auditoriums, live theaters, seasonal venues, touring productions, and more.

ETS InstaMusician Balun Features:

  • Sends both audio and video over single UTP
  • Superior signal balance. Reduces crosstalk, ingress, and ghosting
  • Can utilize the existing telecom wiring
  • Passive unit
  • Meets FCC Class A standards
  • Rugged metal case
  • Made in USA
  • 100% tested

ETS InstaMusician Balun Specifications:

  • Model Number: SDS904
  • Video:
    • Support: Composite baseband - NTSC, PAL, SECAM, or CCTV
    • Bandwidth: Flat to 60 MHz
    • Connector: BNC to etherCON RJ45 jack (pins 7, 8)
  • Audio:
    • Crosstalk @ 20 KHz:
      • -109db between Ch.1 and Ch.2
      • -103db between Ch.1 and Ch.3
      • -106db between Ch.2 and Ch.3
    • Connectors: XLR connector to etherCON RJ45 jack
      • Ch.1 Pins: 5 & 4
      • Ch.2 Pins: 1 & 2
      • Ch.3 Pins: 3 & 6
    • Distance:
      • UTP: 1200 ft
      • FTP, STP: 850 ft - Phantom power only
    • Media: CAT5e or better UTP cable is recommended
  • Dimensions: 4.21" x 2.756" x 1.969" (107 x 70 x 50 mm)
  • Weight: 0.946 lb (0.43 kg)
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