HP4E
Details https://www.akg.com/Headphones/Headphone%20Amps/HP4E.html?dwvar_HP4E_color=Black-GLOBAL-Current4-channel headphone amplifier
Variations
4-channel headphone amplifier
Small footprint
With 4 totally independent stereo high-power amplifiers in half 1 RU package
Carefully selected components
For high quality audio even at extremely high volume levels
Two stereo inputs
For full flexibility with independent selection of input for each output
Two outputs per channel
With each a 1/4” (6.3mm) and 1/8” (3.5mm) stereo socket so no adapter is needed
Rugged construction
With strong metal housing to withstand rough working environments
The ideal compact headphone amp
The HP4E professional headphone amplifier features two stereo input and four stereo output channels of high-quality audio. Designed for ease of use, convenient switches on the front plate enable you to select your designed input. Each channel features both a 1/8” (3.5 mm) and 1/4” (6.3 mm) headphone output for easy connectivity – no adapters required. Housed in a sturdy metal chassis, the HP4E is an ideal headphone amp for any recording session. Available in the US only.
Item#
3450H00010
General Specifications
Design
4-Channel Headphone Amplifier
Input
6.3 mm (1/4”) socket - unbalanced
Input impedance
100k Ohms
Output
3.5 mm (1/8”) socket and 6.3 mm (1/4”) socket per channel
Output impedance
11 Ohms
Audio frequency bandwidth
20 - 20000 Hz
Max. output level
220 mW
Distortion
<0.05%
Signal to Noise
better than 85 dB-A
Net weight (incl. power supply)
760 g
- 1 x HP4E
- 1 x Power Supply (12V)
- 1 x Quick Set Up Guide
The latest owner's manuals, quick start guides, and documents.
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FAQs
1/2
2/2
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<span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
Rated <span itemprop="ratingValue">5</span> out of
<span itemprop="bestRating">5</span>
</span> by
<span itemprop="author" itemtype="http://schema.org/Person" itemscope><span itemprop="name">CDietz</span></span> from
<span itemprop="name">Everything I was looking for!</span>
<span itemprop="description">I love this thing! I needed a way to keep several output devices plugged into my production computer, some high impedance, some low, some with 1/4" pins, some with 1/8". This piece is sturdily constructed and compact, has all the controls I need in front, and doesn't color the output. It is a great device for a fair price. Get it.</span>
<div class="bvseo-pubdate">Date published: 2022-03-01</div>
<meta itemprop="datePublished" content="2022-03-01" />
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<div class="bvseo-review" itemprop="review" itemscope itemtype="http://schema.org/Review" data-reviewid="214415588">
<span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
Rated <span itemprop="ratingValue">5</span> out of
<span itemprop="bestRating">5</span>
</span> by
<span itemprop="author" itemtype="http://schema.org/Person" itemscope><span itemprop="name">Lurid Delusion</span></span> from
<span itemprop="name">Exactly what I needed.</span>
<span itemprop="description">I was looking for a small, versatile, multi-output amplifier so I could keep all of my high- and low-impedence output devices plugged in and just turn up the ones I needed so I could stop crawling under my desk to switch devices. I also already had an AKG mic which I love. This was a no-brainer, and it's perfect!</span>
<div class="bvseo-pubdate">Date published: 2022-01-27</div>
<meta itemprop="datePublished" content="2022-01-27" />
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<div class="bvseo-review" itemprop="review" itemscope itemtype="http://schema.org/Review" data-reviewid="208591732">
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Rated <span itemprop="ratingValue">5</span> out of
<span itemprop="bestRating">5</span>
</span> by
<span itemprop="author" itemtype="http://schema.org/Person" itemscope><span itemprop="name">Nivram</span></span> from
<span itemprop="name">works as intended</span>
<span itemprop="description">just plugged it in..... happy with ease of set up no brainer</span>
<div class="bvseo-pubdate">Date published: 2021-06-16</div>
<meta itemprop="datePublished" content="2021-06-16" />
</div>
<div class="bvseo-review" itemprop="review" itemscope itemtype="http://schema.org/Review" data-reviewid="219099520">
<span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
Rated <span itemprop="ratingValue">2</span> out of
<span itemprop="bestRating">5</span>
</span> by
<span itemprop="author" itemtype="http://schema.org/Person" itemscope><span itemprop="name">QAChip</span></span> from
<span itemprop="name">Sound leaks to all outputs, even from input A to B</span>
<span itemprop="description">I bougth this to feed my k172 pro and k702.
I connected both and noticed that I could hear the sound in both headphones when one has some volume and the other has zero volumne ("complete muted"). I can also hear input A, when input B is selected.
There is no On/Off swithch. The only way to turn it off is by pulling off the cord.</span>
<div class="bvseo-pubdate">Date published: 2022-08-20</div>
<meta itemprop="datePublished" content="2022-08-20" />
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<div class="bvseo-question-answer" data-questionid="5694688">
<h2 class="bvseo-question">
Hi I want to use my k340 headphone with my iPhone should I get HP4E for sound and bass improvement thanks&nbsp;
</h2>
<div class="bvseo-question-detail">
</div>
<div class="bvseo-author">Asked by: All over</div>
<div class="bvseo-answer" data-answerid="5951463">
This is a rack mount amp I don&rsquo;t have much experience with stuff like this but just from the spec sheet no go with something from fiio of schitt
<div class="bvseo-author">Answered by: 1uke</div>
<div class="bvseo-pubdate">Date published: 2023-01-12</div>
</div>
</div>
<div class="bvseo-question-answer" data-questionid="5873691">
<h2 class="bvseo-question">
Why is it that right side headphone has no sound ? This has been a repeated issue with this model I found put after the fact online. How can this issue be fixed?
</h2>
<div class="bvseo-question-detail">
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<div class="bvseo-author">Asked by: Tiff</div>
<div class="bvseo-answer" data-answerid="5837216">
We would like to get more information to help you out, please contact us so we can assist you: https://bit.ly/2WqpXfi
<div class="bvseo-author">Answered by: Mario at Customer Service</div>
<div class="bvseo-pubdate">Date published: 2021-06-06</div>
</div>
</div>
<div class="bvseo-question-answer" data-questionid="5694679">
<h2 class="bvseo-question">
Hi I&rsquo;ve an old k340 in good condition for casual use &nbsp;&amp; I&rsquo;m attempting to get k712. Is there any sound approvals in k712 or should I stick to my k340 headphone?
</h2>
<div class="bvseo-question-detail">
</div>
<div class="bvseo-author">Asked by: All over</div>
<div class="bvseo-answer" data-answerid="5688035">
To better answer your inquiry, please reach out to our Professional Audio team at https://www.akg.com/support-contact-pro.html
<div class="bvseo-author">Answered by: Homer at Customer Service</div>
<div class="bvseo-pubdate">Date published: 2021-06-06</div>
</div>
</div>
<div class="bvseo-question-answer" data-questionid="5672386">
<h2 class="bvseo-question">
I want to buy the AKG K712 PRO , Currently I have a RME Baby Face Sound card. Do I need this HP4E Amp to get the real juice of this headphones?
</h2>
<div class="bvseo-question-detail">
</div>
<div class="bvseo-author">Asked by: Anonymous</div>
<div class="bvseo-answer" data-answerid="5669524">
We would like to get more information to help you out, please contact us so we can assist you: https://bit.ly/2WqpXfi
<div class="bvseo-author">Answered by: Mario at Customer Service</div>
<div class="bvseo-pubdate">Date published: 2021-06-06</div>
</div>
</div>
<div class="bvseo-question-answer" data-questionid="5614988">
<h2 class="bvseo-question">
Can I plug a stereo 1/4&quot; input cable and hear stereo output from each channel? Vs. having to plug two left and right mono cables in to hear stereo output. I need the former. Thanks!
</h2>
<div class="bvseo-question-detail">
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<div class="bvseo-author">Asked by: TalboGold</div>
<div class="bvseo-answer" data-answerid="5615417">
Since you're inquiring about one of our Professional Audio products. Please reach out to our Pro Audio team at 844-776-4899 (8:00 AM - 6:00 PM CST M-F)
<div class="bvseo-author">Answered by: Homer at Customer Service</div>
<div class="bvseo-pubdate">Date published: 2021-06-06</div>
</div>
</div>
<div class="bvseo-question-answer" data-questionid="6726607">
<h2 class="bvseo-question">
How compatible is this amplifier with a set of AKG K 240DF headphones (600 ohms)?
</h2>
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<div class="bvseo-author">Asked by: Dave0909</div>
</div>
<div class="bvseo-question-answer" data-questionid="4224675">
<h2 class="bvseo-question">
I am more often seeing external power supplies which handle up to 240. Is this a less versatile 12V adapter that I will need to replace, or can it handle 240? Unfortunately, I don't make a habit of lugging around a transformer everywhere I travel.
</h2>
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<div class="bvseo-author">Asked by: Redmusic1</div>
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<div class="bvseo-question-answer" data-questionid="5860090">
<h2 class="bvseo-question">
Is it ok to leave the AKG HP4E 4 on 24/7..???.if it has an on/off switch I havent seen it ....
</h2>
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<div class="bvseo-author">Asked by: Anonymous</div>
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