Frequency response: 0 +1/–3 dB, 20 Hz–20 kHz (MIC/LINE IN – STEREO OUT)
Total Harmonic Distortion (THD) (nominal input/output level) 20 kHz LPF: Less than 0.03% 1 kHz (LINE IN to STEREO OUT), Less than 0.2% 1 kHz (MIC IN to STEREO OUT)
Dynamic range (max. level in relation to the noise threshold) IHF-A: 109 dB typ. DA converter (STEREO OUT), 103 dB min. DA converter (STEREO OUT), 103 dB typ. AD + DA (LINE IN to STEREO OUT), 97 dB min. AD + DA (LINE IN to STEREO OUT)
24 Bit / 64 times oversampling AD converter
24 Bit / 128 times oversampling DA converter
32 bit internal processing
Sampling rate: 44.1 kHz (±6%, internal), 44.1 kHz (±6%, external)
Audio input section: MIC/LINE x 8 channels, DIGITAL IN x 2 channels (optical stereo ×
Audio output section: MONITOR OUT x 2 channels (stereo × 1), PHONES x 2 channels (stereo × 1), STEREO/AUX OUT x 2 channels (stereo × 1), DIGITAL OUT x 2 channels (optical stereo ×
Mixer section: 36 channels in total, MIC/LINE Input x 8, Internal Effect Return x 4, Recorder Monitor x 16, Quick Loop Sampler x 4 Stereo
Internal effects section: Multi-effects × 2
Bus section: 8 buses in total, Bus x 2 (L/R), AUX x 2 (1/2), STEREO x 2 (L/R), Effect x 2 (1/2)
2.5" IDE 20 Gb HDD. Maximum capacity per song: 6.4 Gb
Maximum number of songs: 1,000 songs
Recorder resolution: 16-bit linear (uncompressed)
Maximum number of simultaneous recording/playback tracks: 8 tracks (recording) & 16 tracks /playback)
Number of tracks: 144 (16 tracks + stereo tracks) × 8 virtual
Faders: 13 × 45 mm
MIDI MTC (Master/Slave), MIDI Clock (Master), MMC (Master/Slave), Program Change, Control Change, Bulk Dump
Memory: Scene Memory, EQ Library, Dynamic Library, Effect Library, Channel Library, Sample Library
AC adapter: PA-300
Dimensions (W × H × D): 425mm (16-3/4"), 98.8mm(3-7/8"), 321.5mm (12-3/4")
Weight: 9.7 lbs
MIC/LINE inputs channels 1, 2 (balanced, XLR), +48 V phantom power ±3 V
Input impedance 3kΩ, Nominal input level –46 dB at +4 dB, Minimum input level –52 dB, Maximum output level +18 dB
MIC/LINE inputs channels 3–8 (balanced, TRS jacks), Input impedance 3kΩ, Nominal input level –46 dB at +4 dB, Minimum input level –52 dB, Maximum input level +18 dB
MIC/LINE (HI-Z) input channel 8 (unbalanced, jack), Input impedance 500kΩ, Nominal input level –46 dB at +4 dB, Minimum input level –52 dB, Maximum input level +18 dB
STEREO/AUX OUT L, R (unbalanced, jack), Output impedance 150Ω, Nominal load impedance 10kΩ, Nominal output level –10 dBV, Maximum output level +4 dBV
MONITOR OUT L, R (unbalanced, TRS jack), Output impedance 150Ω, Nominal load impedance 10kΩ, Nominal output level –10 dBV, Maximum output level +4 dBV
PHONES L, R (unbalanced, TRS jack), Nominal load impedance 8–40Ω, Maximum output level 100 mW + 100 mW (40 Ω load)
Optical DIGITAL STEREO I/O

UTILIZATION

Excellent, except for the absence of a USB output and motorized pots, which would be very useful when recalling scenes (which are the settings of a song that you can store).
And a small touchscreen (but I'm being picky here).
Complex manual, but if you practice and use it frequently it's quite logical. Nevertheless, the controls are sometimes tiresome.
A bit slow compared to a computer in certain cases, but it NEVER crashes (and that's priceless).
The routing of external effects to insert them into the mix is pretty lousy and takes up two inputs. Bummer.
I have two, which doubles the possibilities of my home studio (a master and a slave), and it also allows me to record outdoors at leisure.

SOUNDS

You get out what you put in.
Parametric EQ on every input and every track so you can sculpt your sound the way you want it, and it flatters the ears. The broad possibilities allow you to correct certain "cheap" links in your chain.
The converters seem relatively neutral, I can't hear any sound coloration.
It doesn't provide any particular color and it's not a Neve or an SSL, you can be sure of that.
Careful with the input level, it clips pretty easily and the result is degraded.
If you set the compressors correctly you won't get any pumping.
Slightly brilliant in the high mids, the mastering section is effective but you will need external processors to complement it.
In short, if it grooves at the input, it grooves at the output.

OVERALL OPINION

After having hesitated between this one and the Korg D1600, I don't regret anything.
Even if you are limited for live recordings by the 8 inputs (despite having 16), in the studio, the individual assignation of parametric EQs and dynamic processors to every input, which can be then retouched on every track, makes everything fine.
The effects processor has only two channels, but the possibility to assign them during the rough mix allows you to insert others into other tracks, etc., up to the final mix, so you can go very far with this recorder.
P.S.: Most factory presets are pretty bad, regardless of whether it's for dynamics, effects or EQ, including (and especially) for mastering!
So make your own, save them and everything will be fine!!
You will need to add a multi-band processor at the output to get real studio-like results.