PreSonus HP4 Discrete 4-Channel Headphone Amp
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Professional recording quality, desktop size.
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
Think small and get big-time headphone control.
HP4 Discrete 4-Channel Headphone Amp 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
Review Snapshot®
by PowerReviews(based on 23 reviews)
Ratings Distribution
Most Liked Positive Review
A Quality Product
I, like many others on this site had researched amps around the Internet and at G.C. locally - the PreSonus HP4 caught my eye with its price and good looks, but as I've learned...Read complete review
I, like many others on this site had researched amps around the Internet and at G.C. locally - the PreSonus HP4 caught my eye with its price and good looks, but as I've learned ? good looks and a low price usually spell trouble in musical equipment. But from reviews and experience with it at the store, i bought it. I love the HP4's non-existent footprint in my setup, I have it powering my KRK R8's and Pioneer 1000's from a M-Audio Delta 1010 and it allows enough power that I've never past the 6th tick mark on the volume knob. Using it on my Delta 1010 also lets me listen to iTunes and DVD's on my computer through it and truthfully it does stand up to the big boys in sound level with no distortion. I love the monitor mute button, a simple, useful perk that helps immensely in the mastering when you want to hear quality reproduction in headphones where you can hear every nuance or on the monitors where it will let you judge the sound your listeners will most likely hear. All in all, for the price the HP4 is worth every penny, and I always mention it when the talk comes to headphones.
VS
Most Liked Negative Review
Crystal clear but thin and tiring sound
I bought it as an an alternative choice of a double priced tube head amp to drive my Senheiser HD-650. The sound is very-very clear. I can hear whether the dust cover of ...Read complete review
I bought it as an an alternative choice of a double priced tube head amp to drive my Senheiser HD-650. The sound is very-very clear. I can hear whether the dust cover of my turntable is closed or open.BUT: The sound is very tiring. I admit I don 't like the "proffesonal sound" and this one "scratches" my ears. Furthermore, the sound stage is not placed above your head (as tit should be) but stuck right inside it (which is annoyng for may tastes).However is perfect for listening to old and warn-out vinyl records. Its analytic character adds some "air" to the sound and it makes them more listenable.I don't know if I could bye a better one at that price but I 'm looking forward to replace it with a pricier one.
Reviews
Reviewed by 23 customers
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Displaying reviews 1-10
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Pros
- Durable
- Good Value
- Great Sound
Cons
- None
Best Uses
- Church
- Live Performance
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
Each one of our 6 musicians/singers in our Kids Band at our church has one on their own mix. Having these allows our trainee/backup musicians to plug in and listen to rehearsals, click, talkback, etc. Very easy to use, and you can't beat the price.
- Was this a gift?:
- No
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
I gave it a 2 because when it did work I really liked it.
After a year it started to go in and out and finally I just can't use it any more. One side is dead. If you buy this one make sure you get the extended waranty, you most likely are going to need it. I didn't and I don't know if it is even worth seeing if they would fix a 1 1/2 year old amp.
No value in undependable equipment.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
Well I plugged it into my headphone jack on my pc speakers and started a playback. I had the units volume at about 10:00 and it nearly pierced my ears. I turned down the powered speaker volume and it was still too loud so I turned the unit down to a fraction above off and that worked fine. I don't yet have the right wire for plugging into a line out instead but I'm sure that will be loud enough also.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
First one I got was defective. There was no increase in volume after the 12-o?clock position. Second one worked. The salesman told me that this amp would be loud enough for a drummers headphone mix during recording. Not true and not even close. It does provide decent sound but my stereo amp that we still use for recording drums, sounds better and is louder. I would not recommend this for those who need the headphone mix loud, but at low to moderate levels this is probably as good as other brands in this price range.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
Revamping the studio into more of an Indie-level multimedia production facility for an Indie-level record label, I found myself needing additional headphone channels, and more control over my monitors. This solid as a rock, all-metal unit was exactly what I needed! Crystal clear sound, TONS of headroom, and that all important "monitor mute" button! I'd buy it again in a heartbeat!~M
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
I bought it as an an alternative choice of a double priced tube head amp to drive my Senheiser HD-650. The sound is very-very clear. I can hear whether the dust cover of my turntable is closed or open.BUT: The sound is very tiring. I admit I don 't like the "proffesonal sound" and this one "scratches" my ears. Furthermore, the sound stage is not placed above your head (as tit should be) but stuck right inside it (which is annoyng for may tastes).However is perfect for listening to old and warn-out vinyl records. Its analytic character adds some "air" to the sound and it makes them more listenable.I don't know if I could bye a better one at that price but I 'm looking forward to replace it with a pricier one.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
4 very clean, very powerful channels, and any one of them is worth the price. Every bit as good as I have come to expect from Presonus.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
4 crystal clear channels that can make your ears bleed without breaking sweat. I never turn it up past 9:00 and it is as loud as ever want it. I would buy this again at the full price even if they ditched 3 of the channels. Combine it with a pair of Stanton DJ Pro 2000s headphones for a bargain priced reference system that will blow just about anything you have ever listened to right out of the water.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
I'm somewhat partial to PreSonus gear but this piece is not worth the risk. After just a handful of uses, the HP4 headphone amp failed - MISERABLY! The failure started with a sudden and severe drop in output level. Then came a low end, overdriven "hum." Seconds later, the smell of ozone. She's FRIED dude! Maybe I can re-use the knobs elsewhere.
Comments about PreSonus HP4 Discrete 4-Channel Headphone Amp:
I've had my unit about one year. It has died and been repaired under warranty twice. And now tonight it has ded again! Time for me to give up and get a new one. I don't recommend this unit.
