PRESONUS audioBox
Estas son las especificaciones técnicas para poder comparar con la stx2. Yo a partir de aquí ya me pierdo con la terminología.
Microphone Preamp
Type XLR Female Balanced
Frequency Response (±3.0 dB) 14 Hz to 70 kHz
Input Impedance (Balanced) 1200Ω
THD+N (unwtd, 1 kHz @ +4 dBu Output, Unity Gain) < 0.008%
S/N Ratio (Unity Gain, Ref. = +4 dBu, 20 Hz to 22 kHz) > 95 dB
Common Mode Rejection Ratio (1 kHz, 55 dB Gain) > 45 dB
Gain Control Range (± 1 dB) 0 dB to 35 dB
Max Input Level (Unity Gain, 1 kHz @ 0.5% THD+N) -3 dBu
Phantom Power (±2 VDC) +48 VDC
Instrument Input
Type ¼"
TS Female Unbalanced Input Impedance 0.5 MΩ
Line Outputs
Type ¼"
Balanced Output Impedance 51Ω
Headphone Output
Type ¼" TRS Active Stereo
Maximum Output 60 mW/Ch @ 60Ω Load
Frequency Response (±1.0 dB) 20 Hz - 30 kHz
MIDI I/O
Type Dual 5-pin Female DIN
Digital Audio
ADC Dynamic Range (A-wtd, 48 kHz Sample Rate) 105 dB
DAC Dynamic Range (A-wtd, 48 kHz Sample Rate) 105 dB
Bit Depth 24
Reference Level for 0 dBFS +4 dBu
Internal Sample Frequency Selections (kHz) 44.1, 48
Power USB Bus-powered
Physical
Dimensions 1/3U (steel chassis)
Height 5.5” (139.7 mm)
Depth 1.75" (44.45 mm)
Width 5.5” (139.7 mm)
Weight 5 lbs (2.27 kg)

Saludos