HTP-1 Installation and User Guide Release 1.8.1
The question mark in the upper right corner brings up a help page that defines terms basically.
Volume Range and Maximum Output Voltage
The HTP-1 uses a sophisticated mixture of analog and digital volume controls. The analog volume control
is used as much as possible. The digital volume control is adjusted to provide for processing headroom.
A
Maximum Output Level
(formerly amplifier sensitivity) control is provided on the
CALIBRATION
page
so that the output voltage of the HTP-1 can be matched to the input sensitivity of your amplifier. The
input sensitivity of an amplifier is defined as the voltage at which the amplifier is driven to clipping.
Large amplifiers with XLR inputs typically have an input sensitivity between 1 and 2 volts. Amps with RCA
inputs don’t typically report their input sensitivity. Because the RCA connection is unbalanced such
amplifiers typically expect a higher input voltage.
The HTP-1 can drive an output of up to 4.0 volts RMS into a balanced load.
When this control is set correctly, the amplifier should clip before the HTP-1 clips and a comfortable
listening level should be obtained with the volume control between -10 and -20dB on the front panel.
Clipping should of course only happen at the loudest volume that your amplifiers and speakers support.
That might be painfully loud with the potential to induce system or hearing damage.
To avoid the volume being set to a painful and/or damaging level and to optimize the range of the
volume control, users are allowed to set the maximum and minimum volumes. These will correspond to
the range of the
volume slider
, if enabled. These volumes function as stops or limits. Typically the lower
limit is set so that you can barely hear it in your listening room and the upper limit is set by your comfort
level with your speakers and amps.
HTP-1 User Manual
Page 46
V1.8.1
Содержание HTP-1
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