HTP-1 Installation and User Guide Release 1.8.1
For Highest Quality Audio
There are a number of guidelines that users should be aware of to achieve the highest possible audio
quality.
1) Engaging any of the surround modes results in the sample rate being limited to 48kHz by a high
quality sample rate converter. Avoid the surround modes if you wish to take advantage of high
sample rates.
2) The Dirac room correction filter limits the sample rate to 48kHz. Turn off Dirac filtering if you
wish to take advantage of high sample rates. You can copy the delay and trims measured by
Dirac into an otherwise empty calibration slot, or you can use the Dirac Bypass setting.
Ensure that the maximum output voltage (formerly amplifier sensitivity) on the calibration page is set
correctly. The best dynamic range (SNR) will be achieved when the output is set to match the amplifier
and the HTP-1 volume is at maximum for the amplifier. The HTP-1 uses a high quality analog volume
control. It also reserves some of its digital dynamic range using a small amount of digital attenuation.
This digital attenuation (and hence your headroom) is at a minimum when the volume is at its maximum
level as set on the calibration page. Remember that if there is no headroom, then adding gain in
equalizers (Dirac, PEQ, tone) and trim controls can result in clipping.
HTP-1 User Manual
Page 75
V1.8.1
