USBPre Specifications
Frequency Response: (reference 1 kHz)
10 Hz - 20 kHz, +/- 0.5 dB (any input to PC recording)
10 Hz - 20 kHz, +/- 1.0 dB (PC source to PC AUDIO out)
THD+N: (10 Hz - 22 kHz measurement bandwidth)
0.05% max. (any input to PC recording, gain control at min., input driven to -6 dB FS)
0.007% max. (PC AUDIO output, 0 dB FS output, 100k load)
0.05% max. (HEADPHONES output, 2 V rms output, 600 ohm load)
E.I.N.: (MIC inputs)
-124 dBu min.
(10 Hz - 22 kHz bandwidth, 150 ohm source, gain control at 50% or more, 15 dB pad out)
Inputs:
|
Clip Level
(1% THD) |
Sensitivity
(typical, for 0 dB FS) |
Impedance |
min. gain |
max. gain |
MIC
(15 dB pad out) |
-12 dBu
(195 mV rms) |
-10 dBu |
–53 dBu |
2k ohm
active-balanced |
MIC
(15 dB pad in) |
+4 dBu
( 1.2 Vrms) |
+5 dBu |
-38 dBu |
2k ohm
active-balanced |
LINE |
+24 dBu
(12.3 V rms) |
+24 dBu |
+7 dBu |
65k ohm
active- balanced |
DI |
+6 dBu
(1.5 V rms) |
+ 8dBu |
–9 dBu |
10M ohm
unbalanced |
TAPE |
+8 dBu
(2.0 v rms) |
+10 dBu |
–7 dBu |
110k ohm
unbalanced |
Output Clipping Levels: (1% THD, Windows Mixer at max..)
PC AUDIO: +8 dBu (2.0 V rms) w/ 100k ohm load
HEADPHONES: +11 dBu (2.75 V rms) w/ 600 ohm load
Output Impedance:
PC AUDIO: 3.3k ohm
HEADPHONES: 20 ohms
A/D Converter:
24 bit resolution
104 dB min. dynamic range, 24 bit mode (10 Hz - 22 kHz bandwidth, A-weighted)
96 dB min. dynamic range, 16 bit mode (10 Hz - 22 kHz bandwidth, A-weighted)
D/A Converter:
16 bit resolution
90 dB min. dynamic range, 24 and 16 bit mode (10 Hz - 22 kHz bandwidth, A weighted)
Sample Rates / Bit Depths:
Recording: 8, 16, 24 bits at 32, 44.1, 48 kHz
Playback: 8, 16, 24 bits at 5 to 55 kHz
Master Clock: (recording)
PLL generated, low jitter
Metering:
Input level at A/D converter
6 segments, 30 dB total range, peak responding
0 dB on meter = 0 dB FS (0 dB referenced to Full Scaled Digital)
Phantom Power:
48 V through 6.8k resistors, each mic input will supply 10 mA
Powering:
USB bus powered, 3 stage soft-start meets USB hot-plugging power requirements
5 V, 100 mA max current drawn during enumeration
5 V, 300 mA quiescent current from USB port
5 V, 500 mA max current from USB port
Dimensions (unpackaged):
4.3 cm x 18 cm x 10 cm (H x W x D)
1.7 in. x 7.25 in. x 4.25 in.
Weight:
0.5 kg
1.13 lbs.
Certifications:
Meets FCC Part 15 Class B
Complies with the requirements of European Directive 89/336/EEC
Included Accessories:
USB Cable
USBPre software CD-ROM
Rubber Feet
|