# Over-ear headphones Hifiman HE400SE — open-back planar magnetic, wired

**URL:** https://aio.lv/en/product--hifiman-6925624202194--10644169
**Data updated:** 2026-03-11 11:54 (EET)
**Category:** Headphones
**Manufacturer:** Hifiman
**Manufacturer code:** 6925624202194
**EAN:** 6925624202194
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 124.99 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 103.30 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hifiman-6925624202194--10644169

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Hifiman HE400SE over-ear headphones with open-back design and planar magnetic drivers. Wired, full-size headphones intended for detailed music listening and critical listening at home or in the studio. Deliver wide soundstage and clarity typical of planar-magnetic technology; suitable for audiophiles, home audio systems and desktop setups.

## Long description

Hifiman HE400SE over-ear headphones feature an open-back design with planar magnetic drivers, engineered for detailed and transparent sound reproduction. These wired, full-size headphones are intended for critical listening at home or in a studio environment, offering a wide soundstage and the clarity typical of planar-magnetic technology. The HE400SE is compatible with desktop audio systems, headphone amplifiers and higher-quality sources to realize its full performance potential.
Advantages
The open-back architecture provides an expansive and natural soundstage that helps locate instruments and vocal placement more effectively than closed designs. Planar magnetic drivers deliver low distortion, consistent transient response and extended frequency detail across the spectrum. The full-size over-ear cups and lightweight frame provide extended listening comfort during long sessions, while the wired connection ensures stable audio transmission without compression or wireless latency.
Suitable for
 Audiophile critical listening at home
 Studio mixing and reference listening
 Desktop audio setups with dedicated DAC/amp
 Music enthusiasts seeking wide soundstage and instrument detail
Key specifications
 Driver type: planar magnetic drivers for even diaphragm motion and low distortion
 Design: open-back full-size over-ear cups for a wider, more natural sound field
 Connectivity: wired connection for lossless, real-time audio transmission
 Intended use: home listening, studio reference and desktop audio systems
How to use
Connect the HE400SE to a suitable source via the included wired cable and, when available, use a dedicated headphone amplifier or DAC to drive the planar magnetic drivers to their optimal performance. Position the ear cups over the ears so the pads form a comfortable seal without excessive pressure. For critical listening, allow a short warm-up period after powering the source and listen at moderate volumes while confirming comfortable levels to avoid fatigue.
Usage recommendations
For best results, pair the headphones with a low-noise headphone amplifier or DAC that can provide sufficient power and clean output. Avoid using the HE400SE in noisy or reflective environments where the open-back design will leak sound and be affected by ambient noise. Store the headphones on a stand or in a protective case when not in use to preserve the pads and driver integrity.

## FAQ

### How much does the Hifiman HE400SE headphones cost, and is it available for purchase?

The price is 124.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Hifiman HE400SE headphones be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Hifiman products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Hifiman service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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