# Headphone Amplifier PreSonus HP4 120 W Peak Power 0.0025% THD

**URL:** https://aio.lv/en/product--presonus-pre-hp4--6489005
**Data updated:** 2026-03-11 11:51 (EET)
**Category:** AV Receivers & Amplifiers
**Manufacturer:** PreSonus
**Manufacturer code:** PRE HP4
**EAN:** 673454001451
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 136.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 113.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--presonus-pre-hp4--6489005

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.06.2026 | free |
| Pickup points | 02.07.2026 | 1.99 EUR |
| Courier delivery to door | 02.07.2026 | 4.99 EUR |

## Summary description

The PreSonus HP4 headphone amplifier delivers 120 W peak power per channel with a low total harmonic distortion of 0.0025%. It features an input impedance of 10 Ω and operates on AC power with a voltage of 120 V. This amplifier is designed for high-quality audio performance, making it ideal for studio monitoring and personal listening. Its compact design allows for easy integration into any setup.

## Long description

The PreSonus HP4 headphone amplifier delivers high peak output and low distortion for accurate monitoring and personal listening. With 120 W peak power per channel and a specified total harmonic distortion of 0.0025%, the HP4 is designed to drive a range of headphones with clean, wide dynamic-range sound. The compact chassis in blue is suitable for desktop use or screw-mounting to a standard rack tray, occupying approximately one-third of a rack space. Stereo left and right line inputs and outputs, four headphone outputs, summing-to-mono capability and individual level controls enable flexible routing and level management for session and stage workflows.
Advantages
The unit combines high peak power with very low THD to maintain clarity at elevated levels while its input impedance of 10 Ω supports reliable interfacing with typical line-level sources. Its simple front- and rear-panel controls allow independent headphone level adjustment, stereo-to-mono summing and muting of monitor outputs without affecting headphone outputs. The compact form factor makes it easy to integrate into existing setups, and line outputs allow chaining to additional headphone amplifiers if more outputs are required.
Suitable for
 Studio headphone monitoring for tracking and mixing
 Stage and rehearsal headphone distribution
 Personal listening where high peak headroom and low distortion are required
 Small rigs requiring a compact, rack-compatible headphone amp
Key specifications
 Peak power: 120 W per channel
 Total harmonic distortion (THD): 0.0025%
 Input impedance: 10 Ω
 Power supply: AC, 120 V operation
 Four headphone outputs with individual level controls
 Stereo left/right line inputs and left/right line outputs with level control
 Stereo-to-mono summing and monitor-output mute functionality
 Compact, rack-compatible form factor (approx. one-third rack space)
 Colour: blue
How to use
Connect left and right line inputs from your mixer, audio interface or other line-level source. Connect headphones to any of the four front-panel outputs, and adjust each headphone level control to the desired listening level. Use the line outputs to feed additional headphone amplifiers or downstream devices. If required, engage the stereo-to-mono summing to deliver a mono mix to all outputs, and use the monitor-output mute control to silence rear outputs while keeping headphone outputs active. Ensure the device is connected to an appropriate 120 V AC mains supply before powering on.
Usage recommendations
Use conservative listening levels when driving high-power output to protect hearing and headphones. For multi-user sessions, set a comfortable reference level for all participants and fine-tune individual headphone volumes as needed. When installing in a rack tray, secure the HP4 with appropriate mounting hardware and leave ventilation clearance around the unit.

## Specifications

| Feature | Value |
|---|---|
| Power source | AC |
| Peak power per channel | 120 W |

### Audio

| Feature | Value |
|---|---|
| Total Harmonic Distortion (THD) | 0.0025 % |
| Input impedance | 10 Ω |
| Frequency range | 20 - 20000 |
| Output impedance | 51 |

### Ports & interfaces

| Feature | Value |
|---|---|
| DC-in jack | Yes |

### Packaging content

| Feature | Value |
|---|---|
| Manual | Yes |

### Power

| Feature | Value |
|---|---|
| AC input voltage | 120 |

### Technical details

| Feature | Value |
|---|---|
| Product colour | Blue |

## FAQ

### How much does the Headphone Amplifier PreSonus HP4 cost, and is it available for purchase?

The price is 136.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 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 29.06.2026 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 Headphone Amplifier PreSonus HP4 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 PreSonus 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 PreSonus 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/6489005/53959079_large.webp