AeroAudio HP DSP TM User manual
HP DSP TM
MANUAL
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
The HPH DSP TM is a studio quality DSP controlled class AB headphone amplier
with gain control, three-band EQ and limiter.
Three key features make this ampliers outstanding for studio use. The rst feature
is the high slew rate that prevents odd order distortion anomalies.
The second feature is current-on-demand at the output that enables the amplier
to respond quickly and linearly when necessary without risk of output distortion.
When large amounts of output power are suddenly needed, the amplier can
respond extremely quickly without raising the noise oor of the system and
degrading the signal-to-noise ratio.
The third feature is the gain-independent frequency response that allows the full
bandwidth of the amplier to be used over a wide range of gain settings.
SIGNAL PATH
HP DSP TM
MANUAL
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
On power up the DSP amp will load stored EQ, limiter and output attenuation
settings. Gain will be at mute. In normal use a user can only use the volume control
(Gain). By pressing the control encoder for approximately 4 seconds the settings
menu will be displayed.
The settings menu contains the following submenu’s:
• Gain
• EQ Low
• EQ Mid
• EQ High
• LIM TH (threshold)
• LIM ON (Limiter on or off)
• ATTENUATE (Output attenuation)
By pressing the encoder again the selected submenu will be entered and settings can
be live adjusted.After a short press the new setting will be stored and the menu falls
back into volume control. If the encoder is untouched for approximately 3 minutes,
the open (sub)menu closes and control falls back into normal volume control.
Adjusted settings will be stored and active.After a power cycle all stored settings
will be loaded.
WARNING!
On shipping and by default the output limiter and output attenuation are
disabled. Without proper adjustment to the type of headphone used the
HPH DSP can produce over 100dBA @ +6dBU input level and can cause ear
damage! Take proper precautions and make proper settings to ensure the
maximum legally allowed output level is not exceeded. AeroAudio strongly
advises to adjust limiter and output attenuation to be set at 85dBA maximum
output level.
AeroAudio can not be held responsible for any type of damage or injuries in
short- or long-term caused by improper installation or use.
HP DSP TM
MANUAL
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
RJ45 FEMALE INPUT and OUTPUT
Power input 12 volt polarity unimportant.
Pin Functie Type
1 Left phase + Audio
2 Left phase - Audio
3 Right phase + Audio
4 Ground Power
5 + 12 volt Power
6 Right phase - Audio
7 Ground Power
8 + 12 volt Power
Shield Shield Shield
RJ45 Female
Pin Functie Type
1
+5 tot +18 volt schakel contact Ingang
2
Massa Pin 1 Massa
3
Schakel contact Ingang
4
Massa Pin 3 Massa
5
Breath-functie Ingang
6
Massa Pin 5 Massa
7
n.c.
8
n.c.
9
n.c.
XLR 3 Pen Male
Pin Functie Type
1
Shield Shield
2
Signaal + Ingang
3
Signaal - Ingang
Connections: 6.35mm and 3.5mm stereo jack
Tip: Audio Left
Ring: Audio Right
Sleeve: Ground
HP DSP TM
MANUAL
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
TECHNICAL SPECIFICATIONS
Power supply: 12 volt DC, 500mA
Power consumption: 300mA (nominal)
Maximum output power per channel (without limiter) @1Khz:
300mW at 32 ohm
Distortion @ 1Khz, 100mW: < 98dB
Channel separation @1Khz: < 101dB
Frequency response: 22Hz – 22KHz
Gain: -60 ~ 0dB
EQ: -12 ~ +12dB
EQ Low centre frequency: 200Hz
EQ Mid centre frequency: 800Hz
EQ High centre frequency: 1800Hz
Limiter: -24 ~ 0dB
Output attenuation -24 ~ 0dB
Balanced audio input L/R at +6dBU
Input load: 33Kohm
HP DSP TM
MANUAL
INSTALLATION DETAILS AND DIMENSIONS
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
47 mm
101 mm
180 mm
Ø 4,4 mm
78 mm
160 mm
47 mm
HP DSP TM
MANUAL
Safety First!
- Caution: hot and sharp surfaces! This professional device may only be installed by qualied personnel.
- Check the cardboard box for any damage upon receipt of the goods. In case of a damaged box, please contact your distributor before opening it.
contact your distributor before opening the box.
- Read all documentation before using the unit.
- Keep all documentation for future reference.
- Keep the box and the packaging material even if the equipment has arrived in good condition.
- Should you ever need to ship the appliance, use only the original factory packaging.
- Do not spill water or other liquids in or on the device.
- Always use the power supply provided.
- Make sure that the power outlets correspond to the power requirements indicated on the back of the power supply.
- Do not use the device if the power cord is frayed or broken.
- Turn off and disconnect the devices from the mains before making any connections.
- Do not use the device near heaters, heating grills, radiators or other heat producing devices.
- Do not use the unit on a surface or in an environment that may interfere with the normal ow of air around the unit.
If the unit is used in an extremely dusty or smoky environment, the unit should be “dusted” regularly.
- Do not remove the cover. Removing the cover will expose you to potentially dangerous voltages.
- In case of malfunction, this unit should only be serviced by qualied service personnel.
- Always follow the instructions of the supplier and manufacturer - Only use accessories, spare and replacement parts specied by the manufacturer.
- Only use the device for the purpose intended by the manufacturer.
STEENWEG 148C - 9810 NAZARETH - BELGIUM - T +32 (0)9 396 76 40 - INFO@AEROAUDIO.EU
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