UPC/EAN #691991001871     MPN #DBXCT3    

$299.99

Save 19.1%, MSRP $371.00
Free shipping in Canada. Conditions

Tests RJ45, RJ11, XLR, TRS, TS, RCA, BNC, DMX, MIDI, DIN, Banana, Speaker Twist, test tone, split chassis, rugged build, 9V batteries per side



The dbx CT-3 is a powerful and flexible cable testing solution designed for professionals who need to diagnose and validate a wide variety of cables with precision. Its two-part Sender and Receiver design makes it especially effective for testing preinstalled or long cable runs, whether in studio, live, or installation settings.

This unit supports up to 8-pin cables and includes connectors for RJ45, RJ11, MIDI, DMX, Speaker Twist, XLR, RCA, BNC, DIN, TRS/TS, Banana, and 1/8" (3.5mm) jacks, making it one of the most comprehensive testers available. The CT-3 also features a built-in test tone generator and banana continuity tester with LED and audio cues for clear diagnostic feedback. With its rugged construction, intuitive interface, and versatile connector compatibility, the CT-3 ensures accurate and efficient cable troubleshooting in any environment.
  • Wide Connector Support: Tests RJ45, RJ11, MIDI, DMX, Speaker Twist, XLR, RCA, BNC, DIN, TRS, TS, Banana, and 1/8" mini-jack cables.
  • Two-Part Design (Sender/Receiver): Easily test long or installed cables by separating the unit into two parts.
  • Test Tone Generator: Built-in signal generator helps verify cable routing and diagnose signal path issues.
  • Multi-Pin Testing Capability: Supports cable tests up to 8-pin configurations.
  • Cross-Format Compatibility: Allows testing between different connector types with no adapter needed.
  • Banana Jack Continuity Check: Includes beep and LED for fast banana cable diagnostics.
  • Clear Feedback and LED Indicators: LED indicators provide straightforward results for each pin and function.
  • Rugged, Road-Ready Build: Sturdy construction ensures reliable use in studio, live, or install settings.
  • Battery Powered and Portable: Runs on two 9V batteries (one per side), perfect for field work or rack maintenance.
  • General Features
  • Cable Compatibility: RJ45, RJ11, MIDI (DIN), Speaker Twist, XLR, RCA Phono, BNC, TRS, TS, DMX, Banana, 1/8 in TS/TRS
  • Cable Format Support: Tests up to 8-pin cables
  • Two-Piece Design: Sender and receiver for in-place and long cable testing
  • Format Conversion: Allows easy connection between different connector formats
  • Tone Generator: Integrated test tone generator for signal tracing
  • LED Indicators: Visual confirmation of continuity
  • Audible Feedback: Banana jack continuity test with beeper
  • Construction: Super-rugged for long-lasting durability

  • Connection Ports
  • DMX (5-pin): 2 connectors (5-pin to 5-pin testing)
  • BNC: 2 connectors (2-pin to 2-pin testing)
  • RCA Phono: 2 connectors (2-pin to 2-pin testing)
  • XLR: 2 connectors (1 male, 1 female, 3-pin to 3-pin testing)
  • MIDI (5-pin DIN): 2 connectors (5-pin to 5-pin testing)
  • Speaker Twist: 2 connectors (4-pin to 4-pin testing)
  • Banana: 2 connectors (1-pin to 1-pin testing)
  • 1/4 in TS/TRS: 2 connectors (3-pin to 3-pin testing)
  • RJ45: 2 connectors (8P8C modular connection)
  • 1/8 in TS/TRS: 2 connectors (3-pin to 3-pin testing)

  • Power and Dimensions
  • Power Requirement: 2 x 9V batteries (one per chassis section, not included)
  • Dimensions: 3.5 in W x 5.5 in L x 1.5 in H (8.9 cm x 14 cm x 3.7 cm)
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