TDT RZ2 Manual page 596

16-18
AC/DC Switch
The AC/DC switch can be used to switch from DC coupling to AC coupling mode.
In AC coupling mode, a 0.5Hz high pass filter is applied to the signals.
DIFF Switch
The DIFF switch will switch to a differential output mode that gives 6 dB of
additional gain when connected to a speaker. When DIFF is switched on (the switch
in the up position), the left channel input goes to both the left and right channels
and is inverted on the right channel (the right input BNC is not used). The
differential output will usually only be used with speakers, not headphones. To
connect the speaker, connect the left output to one pole of the speaker and the right
output to the other pole of the speaker (neither ground of the left nor right output
will be connected).
HB7 Technical Specifications
Input Signal Range
Power Output
Spectral Variation
Signal/Noise
Noise Floor
THD
Corner Frequency
(AC-Coupled Mode)
Input Impedance
Output Impedance
HB7 Headphone Buffer
±10 V peak
0.12 W into 4 Ohms, 0.25 W into 8 Ohms, 1.0 W into 32
Ohms
< 0.1 dB from 10 Hz to 200 kHz
117 dB (20 Hz to 80 kHz)
9.2 V rms
< 0.0002% (1 kHz tone, +/- 7V peak)
0.5 Hz
10 kOhm
5 Ohm
System 3