The Topping Pre 90 Audio Pre-Amplifier will optimise audio signals & get the most out of your audio system. Harnessed with NFCA modules & UHGF technology the Pre 90 will supply a stunning audio performance. The ultra-low noise level of 0.3u V a maximum gain of 16+db & a dynamic range of 145d B will transform weak signals into strong ones & generate great sounds. The small signal relays will provide complete volume control & total channel balance. The Pre 90 Pre-Amplifier also offers 1 x RCA input & 1 x XLR input & volume memory which will automatically switch to the previous volume setting for that input. There is even a remote control provided so you can operate the Pre 90 without having to leave your sofa.