Zoom G2.1u Service Manual page 7

GUITAR Input
Pre Emphasis
2.Analog Block
Output
De-emphasis
-10dB
0dB
+14d
B
+6dB
+6dB
ADC
S/N:97dB
CODEC
AK4552
96kHz
24bit
DAC
S/N:100dB
6.USB Block
Digital In
Digital Out
3.CPU Block
1Fs
64Fs
+10dB
De-Emphasis
+10dB
+0dB
Pre-emphasis
+0dB
PC
(USB)
data from USB
data to USB
ADC
USB CODEC
PCM2904
48kHz
16bit
DAC
12MHz