Custom BNC Inline Attenuators

🇺🇸 MADE IN THE USA 🇺🇸

Harrison Labs Inline BNC Attenuator | Passive Signal Reducer (3dB, 6dB, 12dB)

Sold in matched pairs to provide precise attenuation for your two-channel stereo setup. Fine-tune your audio gain structure and eliminate signal clipping with the Harrison Labs Inline Attenuator. Available in 3dB, 6dB, and 12dB configurations, these professional passive BNC line-level reducers provide a precise way to match output levels between your source and amplifier. By acting as a high-quality signal attenuator, they help lower “hot” signals to prevent distortion and allow for a wider, more usable range on your volume control for a cleaner, more balanced audio experience. These high-end units are housed in a rugged die-cast aluminum Pomona enclosure with nickel-plated brass male and female BNC connectors, delivering the same high-performance engineering in a durable, professional-grade build.

Choosing the Right Attenuation Value

For peak system performance, selecting the correct reduction level is essential to maximizing your signal-to-noise ratio. If you are undecided between two attenuation values (e.g., 6dB vs. 12dB), the professional recommendation is to err on the side of the higher value.

Selecting the higher attenuation value (more reduction) provides a larger safety margin against input clipping and amplifier saturation. This ensures your equipment operates within its “sweet spot,” resulting in a more refined output, reduced floor noise, and superior protection for your sensitive audio components.

Attenuators can be inserted in series to produce more attenuation. For example two 3 db versions stacked will result in 6 db. When a 6 db is added to a 12 db the result is 18db.

The minimum load impedance that will result in further attenuation is 20K ohms. However, for most applications, the exact attenuation is not that important.

Attenuators may be needed when using 2 high pass or 2 low pass FMODs™ in series to increase slope or modify crossover frequencies.