On the back (or bottom, depending on how it’s installed) is a recess housing a few connections. There’s an HDMI input and ARC-capable output that let you feed audio signals into the soundbar and pass video onto your TV (including 3D). They’re joined by optical digital and 3.5mm minijack audio inputs, and an input for the Auto Sound Calibration (ASC) mic.
It’s a little tricky to feed cables into the ports, particularly if you have thick HDMI cables. And when placing the unit on a flat surface, small cushioned supports on the back raise the unit slightly with a groove that allows the wires to stick out of the back. Again, that’s fine if you have thin HDMI cables, but with thicker cables the unit needs a little coaxing to lie flat.
There’s also a USB port on top, which lets you to play MP3, WMA, AAC, WAV, OGG and FLAC files from flash drives. But that’s not the only way of playing music – there’s built-in Bluetooth too, making it easy to beam audio from smartphones and other devices. Related to this is the SoundShare feature, where you can send audio from a compatible Samsung TV to the F751 wirelessly.
As mentioned, there’s a valve amp on board that works in tandem with the Crystal Amplifier Pro digital amp. You also get a raft of sound processing, chief among which is Vertical Surround, designed to ‘fill the room from floor to ceiling’.
There’s also 3D Sound Plus, which aims to synchronise sound to match the depth and motion of 3D images on the screen, while a range of sound presets adjust the EQ for different types of material (Music, News, Drama, Cinema, Sports and Game). These modes can be bypassed.
It has a quoted power output of 310W and offers 2.1-channel decoding, using a 2-way, three-speaker driver array. There’s on-board Dolby Digital and DTS decoding, but not Dolby True HD or DTS HD Master Audio.
Elsewhere it supports Anynet HDMI CEC, Smart Volume (which keeps the sound level consistent to avoid big jumps in volume) and lip sync delay adjustment up to 300ms.