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Description
Polsen HPA-4X2 4-Channel Stereo Reference Headphone AmplifierFor Pro & Project Studio Applications Durable & Compact Design 1x 1 4" TRS Stereo Input Stereo RCA Inputs 4x 1 4" Stereo Headphone Outputs Low Noise Circuitry Independent Amp Circuits Per Channel Link Feature Daisy Chains Multiple Units Stereo Mono Switch Includes 4x Mini Plug Adapters The HPA 4X2 4 Channel Stereo Reference Headphone Amplifier from Polsen features a durable and compact design and can be used for a variety of professional and project
- For Pro & Project Studio Applications
- Durable & Compact Design
- 1x 1/4" TRS Stereo Input
- Stereo RCA Inputs
- 4x 1/4" Stereo Headphone Outputs
- Low-Noise Circuitry
- Independent Amp Circuits Per Channel
- Link Feature Daisy Chains Multiple Units
- Stereo/Mono Switch
- Includes 4x Mini Plug Adapters
The HPA-4X2 4-Channel Stereo Reference Headphone Amplifier from Polsen features a durable and compact design and can be used for a variety of professional and project applications including studio recording and stage monitoring, or any application that requires multiple headphone connections. Each of its four channels features independent volume control in the form of a volume knob as well as independent amp circuits, allowing for a wide frequency response of 20 Hz to 20 kHz and low distortion at high volumes, while assuring no signal loss when all 4 headphone outputs are used simultaneously. Thanks to its Link feature, you can daisy chain multiple HPA-4X2s together to cater to your needed headphone count.
The unit features a 1/4" stereo TRS input, and stereo RCA inputs. It mono button allows for mono signal compatibility. For its headphone outputs, it features four 1/4" TRS connectors. To assure compatibility with a variety of headphones, Polsen includes four 1/8" to 1/4" adapters as well as a stereo mini cable that, when used with one of the included adapters, allows you to connect a device with a 1/8" output.
- Durable, compact, and easy to use
- High output level for precise monitoring at high volume
- Low noise circuitry
- 1/4" TRS and RCA inputs
- Four headphone jacks each with independent volume control
- Wide frequency response (20 Hz to 20 kHz) for full-range stereo sound
- Stereo/mono switch provides options for monitoring playback
- Link feature to daisy chain additional headphone amplifiers
- No loss of signal when all four headphones are connected
- Included stereo mini cable for connecting devices with 1/8" output (use included 1/4" adapter)
UPC: 847628577695
| Channels | 4 |
| Input Connections | 1x 1/4" (6.3 mm) TRS master input 1x L,R RCA |
| Output Connectors | 4x 1/4" (6.3 mm) TRS headphone outputs |
| Maximum Input Level | +14 dBV |
| Maximum Output Level | 22 dB, per channel |
| Input Impedance | 1 k? |
| Output Impedance | Minimum 10 ?, per channel |
| Signal to Noise Ratio | >98 dB |
| THD | <0.007% |
| Power | 12 V DC, 150 mA |
| Dimensions (L x W x D) | 3.00 x 3.75 x 1.20" (76 x 95 x 30 mm) |
| Weight | 10.4 oz (295 g) |
| Packaging Info | |
|---|---|
| Package Weight | 1.3 lb |
| Box Dimensions (LxWxH) | 7.2 x 3.9 x 2.5" |
In the Box
Polsen HPA-4X2 4-Channel Stereo Reference Headphone Amplifier
- Stereo Mini Male to Stereo Mini Male Cable
- 4 x 1/8" (3.5 mm) Stereo Mini to 1/4" (6.3 mm) TRS Stereo Adapter
- DC 12 V/150 mA Power Supply
- Limited 1-Year Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 997 reviews
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Product Reviews
★★★★★ 4
Great suit, but size up
Size: Large, Color: Black, Size: Large, Color: Black
This set comes with a jacket, pants, extra buttons, and a bow tie with an easy clip to remove it. The suit itself is really nice and I love the pattern, however, I thought I purchased a XXL, but seemed to have ordered a L instead. Not quite sure how that happened, but suffice to say, he could not fit the suit. He is normally an L in pants, so based on the fit, we would have needed to size up anyways. He couldn't fit his leg in the pants or his arm in the jacket. I automatically size up on items like this because you can take clothes in, but can't take them out if there is not enough cloth. The suit pants are not lined, but you can see that they did leave room for the legs to be let out. Perhaps if we have the pants let out, he would be able to wear the pants. The jacket is fully lined and it comes with two inside pockets, one can be buttoned. I cannot tell if the jacket has room for alterations, but I might have him fitted for it just to see. It comes with a slit on the back of the jacket, so it has that going for it from a quality standpoint. It does come folded so you have iron or dry clean it before wearing. The quality is good for the most part. There are some threads coming out of the bow tie, but that's all I seen that is less the good. I'm giving it four star based solo on it's look and feel. Of course, I can't comment on the fit. For around $80, I definitely think it's worth checking out for a school semi-formal or fancy dinner out. It might be a little lightweight for a higher end event. Did I say I love the pattern?
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Stylish look and great value for special occasions
Size: X-Large, Color: Blue, Size: X-Large, Color: Blue
This suit looks really good in person. The pattern adds a nice touch that makes it stand out without looking too flashy. It is a great option for events like weddings, parties, or prom where you want something a bit different from a basic suit.
The fit is slim and modern, giving a clean and sharp look when worn. It feels comfortable enough for a few hours, and the overall shape looks more tailored than expected for the price. The jacket sits well, and the pants match nicely to complete the set.
The material is lightweight and decent for occasional use. It does not feel like a premium suit, but it looks good and photographs well, which is what matters for events. The bow tie included is a nice extra and helps complete the outfit without needing to buy more pieces.
It may need a quick steam or ironing out of the package to look its best. Also, checking the size chart is important to get the right fit.
For the price, this is a very good value. You get a full outfit that looks stylish and put together without spending too much. Great option if you need something affordable for special occasions.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Stylish Statement Suit for the Price
Size: Medium, Color: Gold - Embroidery, Size: Medium, Color: Gold - Embroidery
I really like the black with gold embroidery on this suit - it really will make you stand out. The gold does have a slight green tint to it in certain lighting, but overall I like the unique design and think it looks great.
The pants have some flexibility, which made them more comfortable than I expected. I got a Medium - and im usually a 32W. I could see it fitting a 30W or34W too. It arrived in great shape and was not wrinkled at all, though i'm likely going to have to hem the pants 1-2 inches. The pants are neutral and could be worn with other black jackets.
I am usually a size 42 bust in jackets, and while the size chart says medium is a 44 bust, i think this fits me like a glove.
It also came with a bow tie, which is a nice added bonus. Overall, I think this is a great deal for the price and a solid choice for anyone looking for a versatile standout suit for a formal event or a costume party.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Way better than expected - Not a "costume" at all!
Size: X-Large, Color: Christmas Green
I’m going to be honest: I was fully prepared to open this package and find a cheap, shiny, flammable-looking costume that belonged in a discount Halloween store. Buying a tuxedo on Amazon feels like a total gamble, and I was definitely a skeptic.
I couldn’t have been more wrong. This suit is actually fantastic.
First off, the fabric. It doesn’t have that "plastic" feel I was dreading; it actually feels elegant and has a nice weight to it. The floral pattern is sharp and the colors are vibrant without being "too much." It looks way more expensive than the price tag suggests.
The fit was the biggest surprise. I’m always wary of "slim fit" labels, but this hit the mark perfectly. It’s tailored in the right places without feeling like I’m about to burst a seam if I sit down.
I originally bought this thinking it might work for a one-off event, but now I’m genuinely excited to break it out for an upcoming casino night and a wedding later this year. If you’re on the fence because you’re worried about Amazon quality, just go for it. This is a legitimate suit that’ll definitely get you some compliments. 10/10 would buy again.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Showstopper! Incredible Fit and Stunning Floral Design!
Size: Medium, Color: Black
I bought this Mgnaie floral tuxedo for a special event, and I was absolutely blown away by the quality and the fit! Getting a slim-fit suit online can be a gamble, but this two-piece set fit perfectly right out of the package. The blazer hugs the shoulders beautifully, and the pants have a modern, sleek profile without being too restrictive or tight.
The floral pattern is exactly what I wanted—bold and eye-catching, yet elegant enough for a formal setting like a wedding, prom, or gala. I received compliments all night long! The fabric feels premium, breathable, and comfortable enough to wear and dance in for hours without losing its shape.
For the price, you are getting a high-end look that rivals much more expensive designer tuxedos. If you want to stand out from the crowd in the best way possible, I highly recommend this suit. It is an absolute must-have for any formal wardrobe!
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Reviewed in the United States on April 17, 2026