Rolls DB14 AV Presenter

This little box is a powerhouse. It lets you sum two line signals (such as from a smartphone) down to one mono channel and it maintains phase properly. The transformer built into this also isolates your device from phantom power so there is no need to worry about frying headphone jacks.It's well built and does exactly what is says it will. If you work often with connecting phones, computer and tablets to professional mixing consoles then you need to get this device.

Love this little audio interface box. It has RCA and 1.8 mini stereo inputs, and RCA (stereo pair) and XLR balanced mic level outputs. I use this in my gig bag for presentations at conferences. Perfect for connecting a ipod, tablet, smartphone, laptop etc to a house sound system. With a great L/R volume control. This is one of my favorite interface boxes. Works great in LDS meeting houses to interface devices to the sound system.

I have purchased several of these because I can control the left and right channels for inputs that have a split track and can control them separately.Then it gives me a mono, balanced output so I don't burn a bunch of channels in the sound board.I also use it when I have a single powered speaker that I'm feeding from a music source.It gives me a handy volume control without having to run to the speaker or try to mess with the volume control on the music device.It's the right tool for the job in many cases.

EASILY connected to my output of my Computer went to Audio Mixer for added enhancement to presentation.simply works with Volume control

This device lifts the ground static that from time to time impacts presenters using computers to project images and a "house" sound system. The device is small, accepts mini and RCA inputs, is adjustable and fits in a travel bag.Worth its weight in gold when presenting in a facility with limited competence.

We needed something to adapt the line level audio signal of our MacPro to mic level and this was perfect. Killed the noise issue, too, and knocking the signal down to mono meant we had another input available on the board. Perfect for what we wanted.

Works great for getting audio from our computer to the sound board!

Great little device for connecting audio players, like your iPhone and etc. with 1/8” or RCA stereo outlets (has L&R volume controls) with a XLR output to connect to your audio mixer.