--- product_id: 43799499 title: "HPA-4X2 4-Channel Stereo Reference Headphone Amplifier" brand: "polsen" price: "£1.32" currency: GBP in_stock: false reviews_count: 5 url: https://www.desertcart.co.uk/products/43799499-hpa-4x2-4-channel-stereo-reference-headphone-amplifier store_origin: GB region: United Kingdom --- # 4 independent stereo headphone outputs ultra low-noise circuitry daisy-chain multiple units seamlessly HPA-4X2 4-Channel Stereo Reference Headphone Amplifier **Brand:** polsen **Price:** £1.32 **Availability:** ❌ Out of Stock ## Summary > 🎧 Amplify your studio’s vibe with flawless multi-listener sound! ## Quick Answers - **What is this?** HPA-4X2 4-Channel Stereo Reference Headphone Amplifier by polsen - **How much does it cost?** £1.32 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/43799499-hpa-4x2-4-channel-stereo-reference-headphone-amplifier) ## Best For - polsen enthusiasts ## Why This Product - Trusted polsen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Durable, space-saving design built for professional studios and project setups. - • **Expand Your Studio:** Link multiple units effortlessly with the daisy-chain feature for scalable monitoring. - • **Noise? What Noise?:** Experience pristine sound with ultra low-noise amplifier circuits. - • **Flexible Connectivity:** Multiple input options including 1/4" TRS and RCA stereo inputs for versatile use. - • **Quad-Channel Powerhouse:** Drive up to 4 headphones with crystal-clear stereo separation. ## Overview The HPA-4X2 is a professional-grade 4-channel stereo headphone amplifier designed for pro and project studios. It features four independent low-noise amplifier circuits, multiple stereo input options (1/4" TRS and RCA), and a compact, durable design. The unit supports daisy-chaining to expand headphone monitoring capacity, includes adapters for various headphone jacks, and offers a stereo/mono switch for flexible audio control. ## Description Durable, compact, and easy to useHigh output level for precise monitoring at high volumeLow noise circuitry1/4" TRS and RCA inputsFour headphone jacks each with independent volume controlWide frequency response (20 Hz to 20 kHz) for full-range stereo soundStereo/mono switch provides options for monitoring playbackLink feature to daisy chain additional headphone amplifiersNo loss of signal when all four headphones are connectedIncluded stereo mini cable for connecting devices with 1/8" output (use included 1/4" adapter)SPECIFICATIONSChannels: 4Input Connections: 1x 1/4" (6.3 mm) TRS master input1x L,R RCAOutput Connectors: 4x 1/4" (6.3 mm) TRS headphone outputsMaximum Input Level: +14 dBVMaximum Output Level: 22 dB, per channelInput Impedance: 1 kΩOutput Impedance: Minimum 10 Ω, per channelSignal to Noise Ratio: >98 dBTHD: <0.007%Power: 12 V DC, 150 mADimensions (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) ## Features - 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 - Includes: 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, Stereo Mini Male to Stereo Mini Male Cable ## Product Details - **Brand:** POLSEN - **Color:** Black - **Output Wattage:** 4 Watts - **Product Dimensions:** 3"D x 3.75"W x 1.2"H - **Item Weight:** 0.01 Ounces ## Images ![HPA-4X2 4-Channel Stereo Reference Headphone Amplifier - Image 1](https://m.media-amazon.com/images/I/41b7SdF-s+L.jpg) ![HPA-4X2 4-Channel Stereo Reference Headphone Amplifier - Image 2](https://m.media-amazon.com/images/I/515758qPTnL.jpg) ![HPA-4X2 4-Channel Stereo Reference Headphone Amplifier - Image 3](https://m.media-amazon.com/images/I/51P+iPcTGeL.jpg) ![HPA-4X2 4-Channel Stereo Reference Headphone Amplifier - Image 4](https://m.media-amazon.com/images/I/41-4LWGJWaL.jpg) ![HPA-4X2 4-Channel Stereo Reference Headphone Amplifier - Image 5](https://m.media-amazon.com/images/I/41FfDaI-m7L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great for Headphones with TV That Isn't Headphone Ready *by B***8 on January 25, 2018* My wife and I like to use headphones when watching TV. When we travel, the TV sets we have access to sometimes do not have a stereo-jack output. And for most (or all?) TVs, the RCA outputs cannot be attached directly to headphones. They must be attached to an amplifier.This very compact unit does a great job of meeting that need. Very simple to set up, and the sound is crystal clear with little or no lag. ### ⭐⭐⭐⭐⭐ Small, solid, smooth controls and all needed adapters. *by C***F on August 16, 2021* Nice size, power supply included, does the intended job well. ### ⭐⭐⭐⭐⭐ Great little headphone amp! *by M***F on March 15, 2017* Can play loud and remains crystal clear. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/43799499-hpa-4x2-4-channel-stereo-reference-headphone-amplifier](https://www.desertcart.co.uk/products/43799499-hpa-4x2-4-channel-stereo-reference-headphone-amplifier) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*