DBX131SV vs DBXCT3 — Compare

dbx 131s Single 31-Band Graphic Equalizer vs dbx CT-3 Advanced Cable Tester

The dbx 131s is a professional 31-band graphic equalizer for shaping audio in live and studio settings, while the dbx CT-3 is a cable testing tool for diagnosing audio cable faults. These are fundamentally different product categories—choose the 131s if you need frequency control, and the CT-3 if you need to troubleshoot cables.

No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.

dbx 131s Single 31-Band Graphic Equalizer

$275.00
View dbx 131s Single 31-Band Graphic Equalizer

dbx CT-3 Advanced Cable Tester

$240.00
View dbx CT-3 Advanced Cable Tester

Specs side by side

dbx 131s Single 31-Band Graphic Equalizerdbx CT-3 Advanced Cable Tester
Price$275.00$240.00
BrandDBXDBX
YearUnknownUnknown
ConditionNewNew

Why choose dbx 131s Single 31-Band Graphic Equalizer

  • ✓ 31-band 1/3-octave surgical frequency control for precise tone shaping
  • ✓ Professional-grade reliability proven over four decades in touring and studios
  • ✓ Switchable ±6 or ±12 dB boost/cut ranges for flexible gain staging
  • ✓ Extended 10Hz–50kHz response and 110 dB dynamic range

Why choose dbx CT-3 Advanced Cable Tester

  • ✓ Essential diagnostic tool for identifying cable continuity and wiring faults
  • ✓ Budget-friendly utility for live sound, studio, and installation technicians
  • ✓ Prevents troubleshooting downtime by pinpointing cable problems quickly
  • ✓ Compact and portable for gig bags and tech kits
Bottom line: Buy the dbx 131s if you need to EQ and shape audio in performance or studio. Buy the dbx CT-3 if you need to test and verify audio cable integrity on the road or in the studio.

Frequently asked questions

Can the CT-3 replace the 131s in my setup?

No. The CT-3 is a diagnostic cable tester; it does not process or equalize audio. The 131s is an active EQ for tone shaping. They serve entirely different purposes.

Should I own both?

Yes, if you do live sound or touring. The 131s handles audio processing and tone control, while the CT-3 diagnoses and prevents cable-related issues before they affect a show.

What skill level do I need for the 131s?

The 131s is designed for intermediate, advanced, and professional users who understand EQ curves and frequency-specific problem-solving in sound reinforcement and studio environments.

Does the CT-3 work with any cable type?

The CT-3 tests standard audio cables. Consult the manual for specific compatibility with XLR, TRS, and other common audio connector types.

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