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PreSonus HP4 Discrete 4-Channel Headphone Amp

Item #: 
1274034489530
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The PreSonus HP4 Discrete 4-Channel Headphone Amp features 4 headphone outputs on the front panel, each with its own volume, and 150mW of amplification per channel-extremely loud output with a low -98... Read More

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$12995
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  • LIST PRICE
    $15995
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Overview

The PreSonus HP4 Discrete 4-Channel Headphone Amp features 4 headphone outputs on the front panel, each with its own volume, and 150mW of amplification per channel-extremely loud output with a low -98dB noise floor. It also allows control over control room monitors with a separate volume knob that can be muted using the Monitor Mute button. 1/3 rackspace. Accepts balanced/unbalanced inputs and outputs (1/4" TRS). Input can either be set to stereo or mono (the mono selector button on the front channel simply copies both inputs to both sides). Powered by an external wall-mounted supply.

The HP4 represents a tremendous value as echoed by this email received by PreSonus:

"To my amazement, your HP4 sounded as good as both of my hi-fi stereo heaphone amps. Very very clean and loud. I can't believe you put 150 mw per channel, @52 ohms, to four headphone outputs and offer such a quality unit for very little over $100." (M. Burke via email)

Features
  • 4 discrete headphone outputs
  • Each with its own volume and 150mW of power
  • Extremely loud output with low noise (-98dB noise floor)
  • Allows control over control room monitors with a separate volume knob
  • Control room volume can be muted using the Monitor Mute button
  • 1/3 rackspace
  • Balanced/unbalanced TRS I/O
Specifications
  • Connections
  • Input: TRS Impedance: 10K Ohms
  • Output: TRS Balanced: 51 Ohms Impedance
  • Performance:
  • THD+Noise (Unweighted): 0.002%
  • Noise Floor: -98dB
  • Signal To Noise: >95dB
  • Power Supply Rejection: >98dB
  • Power: 16 Watts
  • Panel Controls:
  • Headphone Level: 1 to 12
  • Monitor / Feed Output: -80dB to +10dB
  • Mono Switch: Monitor / Feed Mute
  • Power Supply:
  • Type: Linear
  • Input: 16 VAC/1000 mA (factory configured)
  • Physical:
  • Weight: 5 lb.
  • Dimensions (W x D x H): 5.5" x 5.5" x 1.75"
  • Mounting: Max Rack and Universal Rack Tray
  • Chassis: Steel
  • Panel: Brushed Aluminum
  • Sides: Cast Aluminum
Warranty
MANUFACTURER'S WARRANTY
One year parts and labor warranty.


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  • Repair costs covered for up to three years from date of purchase
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  • Customer Reviews
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REVIEW SNAPSHOT®

by PowerReviews
 
4.1

(based on 7 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

Reviewed by 7 customers

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Displaying reviews 1-7

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5.0

If no other amp is loud enough, this is the one to get.

By Steven DeWitt

from Taylor, MI

I own a pair of Sennheiser HD 380s, and I have a Focusrite Scarlett 2i2 interface with a weak headphone amp built in. After trying many cheap headphone amps, this was finally the amp that was loud enough.

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4.0

Good value

By Paul Stelljes

from Houston, Texas

I bought this little device when my headphone amp went out, for use in my iso booth. So far it is just as advertised, with plenty of gain, very clean. I don't need some of the features, such as monitor control, but I can see those would be very useful to some folks. My only fear is that the unit won't last. I base this on the fact that after only one week I'm hearing that scratchy funky pot sound when adjusting the gain on the output I use most. You may be fine if you don't tweak the level too often, but I'm afraid PreSonus uses cheap potentiometers in this thing. (They pretty much have to, to sell it at such a good price.) Anyway, I have 3 more to wear out before I need to replace it. Worth the money, for sure.

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(1 of 1 customers found this review helpful)

 
5.0

Exactly what I needed

By Garry Miller

from Murrieta, CA

Features: This little amp is an excellent value. Worked perfectly and was easy to set up. The volume controls feel pro and this little dog puts out! Amazing volume and quality sound at all levels. You cannot turn a headphone channel up all the way, and I tried several sets of cans - Yamaha, Sony, Sennheiser. They all sounded better through this amp than the console headphone outs. Much more power. The drummer's cans for once were loud enough. Very handy feature with the monitor gain and mute switch. No accidental ear-blasts if you drive your monitors with it. Could use an on/off switch, but most of us use line conditioners, right? The price is amazing for the value. It will also cascade with additional HP-4's, so you are not future-limited. Quality & reliability: I have only had this for a few days. It is all metal construction, except for the rear jacks, but overall looks and feels well-made. The gain pots have a pro feel, excellent granularity. I heard no distortion, hum, or noise whatsoever. Very good sound quality. No cheap op-amps in this gear. It also runs quite cool, even after hours of session work, driving four cans. Look & Feel. I would prefer an actual half/rack unit, but it is pre-drilled on the bottom for rack adapators. You may want to desk or shelf mount, which it will do well. Nice color mix. It looks cool in my rack, even with all-black gear. Guitar Center had the best price, and they had it in stock. Go get one.

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(1 of 1 customers found this review helpful)

 
5.0

Does what it says it does

By Ted Mentzer

from Needmore PA

OK....I just got this plugged up and only used it an hour so far but as long as it doesn't break it's going to work out great....It is very well made out of metal instead of plastic everything...A problem I've had in the past is getting my AKG headphones loud enough...No more!....I had it turned up 3 quarters and I couldn't stand it any louder if I wanted to...I think if someone would listen full blast it would probably cause hearing loss so if your looking for volume...This is it...The sound quality is very good and I couldn't tell a difference with this in the loop coming out the monitors or headphones...It kept the same clarity with no loss....I remember many years ago, I had a rolls unit and it would suck all the highs and lows out of the signal leaving you with all mids....Not so with this little box...The monitor mute button is going to be extremely handy...When ready to record another track, simply push the button to mute the monitors....I didn't try the mono button but I'm sure it works just fine...Finally shout out to GC-Rockville...Those guys go above and beyond!

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1.0

Got Smoke?

By brandon johnson

from Little Rock, AR

If you are into gear that spontaneously combusts after a little bit of light use, this is the product for you. I have had this less than a year and today after about a 2 hour session my monitors starting making noises similar to a dubstep song and then the HP4 started smoking. I only used this as a monitor controller for the most part, now I get to see if PreSonus is going to replace it. It is pretty cheaply made and even with the volume turned all the way off there was still bleed over that could be heard on the monitor. Save your money, unless you need something that would be good to start a fire with.

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(1 of 1 customers found this review helpful)

 
4.0

Smooth, Forward, Airy and loud.

By benjamin smith

from Las Vegas

I bought this for my project studio. Works great for years now. The sound is just as advertised, no more no less. I have AKG K44 and Sony MDR something. The headphones are more uncomfortable and will hurt your head before you tire of listening to this amp. SOUND: Its FORWARD, clean, clear, airy. I want to get some Grado's RS1000 and try a truly hi end amp, to see if there is any difference. Sounds better than most ipods or cd player. More powerful than all the cans I have. Compared to my Harmon Kardon 3490 Reference receiver HP4 is super forward, and out of the way and has a lot less bass response. The bass is there, and it's clear bass but it's not powerful at all or particularly well defined. The highs are detailed and airy. Mids are smooth and detailed. It won't make you say, "that sounds awesome" it's more of "thats cool, sounds good". I would buy it again although I would love to listen to some other "high end" headphone amps first.

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(18 of 19 customers found this review helpful)

 
5.0

Headphone Amp

By DSDub

from Chula Vista, CA

This little unit works great for home studios. I don't have a "control room", so I don't want the mics picking up the monitors. With this headphone amp, the musicians can record while listening to the mix through headphones and each can have their own level. Sound quality is good, and this thing can get LOUD. Great buy!

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