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Whirlwind PA1
The PA-1 from Whirlwind is a portable headphone monitor that's great for use with headphone distribution systems, for boosting weak headphone outputs, and more. It will accept balanced or unbalanced line-level stereo signals through XLR or TRS inputs, while 3.5mm and 1/4 outputs let you use any pair of headphones. It has volume and balance controls, as well as a stereo/mono switch, and can be powered by two 9V batteries or the included external power supply. High-quality portable headphone monitor High output with low distortion, great for professional applications Parallel XLR and TRS jacks accept balanced or unbalanced stereo line-level signals 1/4 and 3.5mm headphone outputs Volume and balance control knobs Dimensions

Price is $299.00

Price: $299