presonus HD9/HP4 Pack 4-Channel Headphone Amplifier with 4 Closed-Back Headphones

Model #HD9 / HP4 PACK

Presonus hd9 hp4 pack 1
Presonus hd9 hp4 pack 1
Presonus hd9 hp4 pack 2
Presonus hd9 hp4 pack 3
Presonus hd9 hp4 pack 4
Presonus hd9 hp4 pack 5
Presonus hd9 hp4 pack 6
Presonus hd9 hp4 pack 7
Presonus hd9 hp4 pack 8
Presonus hd9 hp4 pack 9
Presonus hd9 hp4 pack 10
How it works
  • You name the price you want to pay for a product.
  • We send your offer to a network of Certified Retailers.
  • If the retailer likes your offer, you get that price for the product.
Greentoe Guarantee
  • All Products are New and from Manufacturer Authorized Retailers
  • 30 day return policy
  • Free Shipping
    No Additional Fees

Name your price


MSRP: $299.00 ?


Your Chances of Success
lowest price online $149.95
average price online $149.95

Your chances of success

Online Prices
We have done the shopping for you! Here is a list of the lowest prices currently found online. With Greentoe, the price will be lower than these prices. “Name Your Price” and find out.
Enter your zip code to see how much we will be saving you!
Showing prices for zip code 94103 change
Retailer Base Price Tax Shipping Total
Amazon logo $149.95 $0.00 $0.00 $149.95
**Pricing is for informational purposes. Not all retailers have direct relationship with Greentoe.

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


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


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
Product Highlights
  • 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
Still Have Questions?
We can help via Live Chat, Email or you can call us 1-888-840-0464


Please log in or sign up to continue


Validating Credit Card...

It will not be processed until the offer is accepted by a merchant.

Notifying Retailers...

Notifying our merchants and checking to see if they accept this offer.

Offer Submitted!

3-digit code in the back of your credit card