• Four Impact II mic preamps, with XLR/line combo jacks
• Eight TRS line inputs, two ADAT, and S/PDIF digital I/O
• 24-bit/192kHz audio resolution
• DSP effects, including Fabrik C Studio and Fabrik R Studio - Pro Compressor/Reverb
• Desktop remote control, with integrated talkback mic
• MIDI I/O, word clock, and high-resolution input meter
• Dual headphone outputs, with individual level control

The Studio Konnekt 48 I/O section comprises:

• 12 analogue channels;
• eight line inputs; and 
• four inputs for the TC Impact II series mic/line preamps; offering 
• gain trim; and
• high-Z guitar settings
• switchable phantom power; and 
• 20dB pad buttons;
• There are eight analogue outputs on balanced TRS sockets and 
• two further main outputs (1/2), featuring digitally controlled analogue level control, on XLRs. In addition to this, 
• two sets of ADAT/TOS ports add;
• eight further channels of ADAT I/O.  Then there's the 
• S/PDIF stereo digital I/O - no shortage of physical connectivity. 
• A pair of standard MIDI I/O ports are provided; alongside
• two Firewire ports; and
• Word clock connections, on the usual BNCs.
• Also onboard is TC's 'JET' Jitter Elimination Technology. to clean up the incoming sync clock when other devices are used as the clock master.

A front panel LED-ladder meter monitors the 12 analogue channels as stereo pairs, as well as activity in the ADAT, Toslink and S/PDIF ports. A further LED confirms the Firewire link is working.
Two headphone ports can have different sources and levels - if the singer likes to work with one phone off you can silence that side, to avoid spill. Or, have the track in one ear, and a click in the other. 
The Studio Konnekt 48 has two on-board DSP chips, providing on-board mixing, monitor/headphone submixing, and speaker management. Plus, the really high-quality Fabrik R Studio digital reverb, based on TC's System 4000 hardware algorithms, and TC's Fabrik C Studio mastering channel strip. Four-band EQ, multi-band compression and limiting, from their flagship System 6000 platform. Plus, run up to four of them. Plus, TC include the ResFilter plug-in, the Assimilator 'fingerprint EQ' and a utility plug-in that allows external hardware devices to be connected and routed like VSTs.
As a mixer, the Studio Konnekt 48 offers a 24:8 format, capable of routing 30 streams of audio to the DAW and 28 streams from the DAW, at the same time. Its 48-bit, double-precision summing, and 56-bit processing can deliver better audio quality than your DAW! Mix channels and groups from your DAW in the Studio Konnekt 48 and then route the stereo mix back to your computer, rather than mixing everything in the DAW itself.
The DSP enables the Studio Konnekt 48 to function as a monitor controller for surround speaker systems, with crossover for the subwoofer. The speaker management section employs Dynaudio's AIR series DSP-controlled monitor speakers, and can store and recall three separate speaker setups, including a headphone mix.