How good are the Liquid Channel converters? What are the specs? Do I need to buy an external converter?

Focusrite have strived to make the Liquid Channel converters to the highest spec so as to preserve the detail in the recorded signal and keep THD and noise to the very minimum. We are confident that sonically the Liquid Channel converters will match or better all other high end A/D and D/A converters. The converter specs are:

Converter performance:
Sample rate: 44.1, 48, 88.2, 96, 176.4 and 192 kHz
Bit depth: 24-bit

ADC:
SNR: 120 dB measured with 20 Hz/22 kHz bandpass A-weighted filter
Frequency response: ±0.05 dB between 20 Hz - 20 kHz
Maximum input level: +22 dBu
THD+N: 0.00035% (-109 dB)

DAC:
Dynamic range: 116 dB measured with 20 Hz/22 kHz bandpass A-weighted filter
Frequency response: ±0.05 dB between 20 Hz - 20 kHz
Maximum output level: +22 dBu
THD+N: 0.0007% (-103 dB)