The Kopul ACH4-25MON Line-to-Mic Attenuator Cable connects the line-level output of a digital audio recorder, including devices such as the Zoom H4n and Zoom H6, to the microphone-level input of a DSLR or compatible camera.

Its 25 dB attenuation reduces the recorder's stronger output to an appropriate level for the camera input, helping avoid overload while creating a backup recording or reference track for post-production synchronization.

• Signal monitoring: A 1/8" (3.5 mm) headphone tap lets the operator monitor the audio signal being sent to the camera.
• Noise reduction: Shielded construction helps reduce radio-frequency noise and interference during recording.
• Compact setup: The 1' (30.5 cm) cable uses straight 1/8" (3.5 mm) Tip-Ring-Sleeve connectors for neat recorder-to-camera rigging.
• Camera compatibility: Designed for cameras with a 1/8" unbalanced microphone-level input, including listed Canon EOS Rebel T2i (550D), T3i (600D), T4i (650D), T5i (700D), SL1 (100D), 60D, 70D, 7D, 6D, 5D Mark II, 5D Mark III, 1D X, 1D C, and 1D Mark IV models; Nikon D5100, D5200, D7000, D7100, D300S, D600, D610, D800, D800E, D3S, and D4; and Pentax K-5 II and K-5 IIs.