Shure › Shure ADTQ Axient Digital PSM Quad Transmitter - G57/470-608 MHz - AC or DC Power Image 1 of 1 Shure ADTQ Axient Digital PSM Quad Transmitter - G57/470-608 MHz - AC or DC Power $11,500.00 Get notified by email when this product is in stock. Quantity: Add To Cart Added!