presonus HD9/HP4 Pack 4-Channel Headphone Amplifier with 4 Closed-Back Headphones
Model #HD9 / HP4 PACK
PRESONUS Warranty


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- 30 day return policy
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Specifications
Packaging Info
Box Dimensions (LxWxH) | 12.5 x 7.8 x 4.3" |
Box Dimensions (LxWxH) | 9.1 x 8.7 x 4.5" |
General Information
Output Connectors | 4 x High Power 1/4" TRS Outputs |
Maximum Output Level | -80dB to +10dB; 51 Ohm Impedance |
Function Controls | Headphone Level, Monitor / Feed Output, Mono Switch, Monitor / Feed Mute |
Frequency Response | 10Hz to 50kHz |
THD + N | 0.002% |
Noise | -98dB |
Display | No |
Dimensions | 5.5 x 1.75 x 5.5" (140 x 44 x 140mm) |
Weight | 5 lbs (2.3kg) |
Driver Size | 1.77" / 45 mm |
Magnet Type | Neodymium |
Voice Coil | Not Specified by Manufacturer |
Design | Over-Ear (Circumaural) |
Earcup Style | Closed-Back |
Material of Construction | Not Specified by Manufacturer |
Frequency Response | 10 Hz to 26 kHz |
Sensitivity | Not Specified by Manufacturer |
Number of Channels | 4 |
Maximum Sound Pressure Level (SPL) | Not Specified by Manufacturer |
Maximum Power Handling | 1800 mW |
Noise Attenuation | Not Specified by Manufacturer |
Total Harmonic Distortion (THD) | Not Specified by Manufacturer |
Driver Type | Dynamic |
Foldable | Yes |
Contact Pressure | Not Specified by Manufacturer |
Impedance | 40 Ohms (Passive) |
Input Connections | 1 x 1/4" TRS Input |
Connectivity
Connector Plating | Gold |
Adapter (Included) | 1/4" (6.3 mm) TRS |
Connector to Earpiece | Not Specified by Manufacturer |
Audio Connector | 1/8" (3.5 mm) TRS |
Cable
Detachable | No |
In-Line Remote/Microphone | No |
Type | Not Specified by Manufacturer |
Cable Length | 9.84' / 3 m |
Dimensions (W x H x D) | Not Specified by Manufacturer |
Weight | Not Specified by Manufacturer |
Design | Single-Sided |
- Includes 4-Channel Headphone Amplifier
- Includes 4 Closed-Back Headphones
- 4 x High-Power 1/4" Headphone Outputs
- Stereo 1/4" Input & Output
- Per-Channel Adjustable Headphone Level
- Switchable Mono/Stereo Operation
- Monitor Level & Mute
- 45mm Neodymium Drivers
- 10 Hz to 26 kHz Frequency Response
- Foldable, Rotatable Design