The LD Systems HPA 1 is a versatile headphone amplifier with high power output for stage, studio and home recording and is the perfect solution for wired in-ear-monitoring.. The compact device in a rugged, ergonomically shaped plastic housing with soft-touch surface and practical belt clip is very extensively equipped.
In addition to locking XLR connectors for the stereo signal L/R input, the HPA 1 has a balanced 3.5 mm stereo jack as AUX input, which can be used in parallel for clicks or playback. It is protected for safe operation against excessive input levels; a hollow pin socket with negative internal contact enables the connection of a network adapter for fixed operation.
A 3.5 mm stereo jack is provided as earphone and headphone output. Volume level and balance can be set with easy-grip knobs, a push-button switches between the summed mono and stereo signals. A full-fledged limiter is integrated for distortion-free playback and as protection against feedback.
The LD Systems HPA 1 has bi-colour LEDs to facilitate the features overview, which displays the response of the limiter during peaks and the battery status. At 165 grams, the headphone amplifier is distinctly light-weight and can be operated for up to 12 hours thanks to a high quality 9 V block battery.
SPECIFICATIONS
- Compact and powerful headphone amplifier
- Also ideal for wired in-ear monitoring
- Balanced XLR inputs L/R
- 3.5 mm AUX input for click and playback
- Precise volume and balance controllers
- Built-in limiter for distortion-free playback and feedback protection
- Switchable mono sum for a focused sound
- Ultra stable housing with soft-touch surface
- Practical belt clip for direct on-body operation
- Connection for a 9 V DC adapter
TECHNICAL INFORMATION
| Product type: | Headphone Amp |
|---|---|
| Inputs: | 2, AUX In (Stereo) |
| Input connectors: | XLR-F (L + R Input, balanced), 3.5 mm stereo jack (AUX In) |
| Input impedance: | 10000 (3.5 mm jack)Ohm(s), 6000 (XLR In)Ohm(s) |
| Input sensitivity: | -6 (3.5 mm jack) dBV, 3 (XLR In)dBu |
| Max. input level: | 7 (3.5 mm jack) dBV, 16 (XLR In)dBu |
| Protection circuits: | Audio Limiter, Max. Input leveling, Power OFF – Mute relay |
| Headphones ouputs: | 1 |
| Headphones outputs: | 3.5 mm TRS |
| Power Output (1% THD @ 33 Ohm Load): | 2 x 1,65 Vrms |
| Minimum connected impedance: | 16 (per channel)Ohm(s) |
| Frequency response: | 20 – 40000Hz |
| THD: | 0.04% |
| Controls: | Balance L/R, Power / Volume, Stereo/Mono (Focus) switch |
| Indicators: | Power LED (Power ON: green), Signal (green), Battery (low battery: red), Peak (Amber) |
| Operating voltage: | 9 V block, 9 V DC power supply, 9 V DC |
| Current draw: | Nom. 0.07 A / Max. 0.15A |
| Cabinet material: | plastic |
| Cabinet surface: | Soft-touch |
| Cabinet colour: | Black |
| Width: | 80 x 42.5 x 133 mm |
| Weight: | 0.155kg |
Prompt shipping and expert packing
We have a range of shipping options because of our long-term relationship with UPS FedEx DHL. Our warehouse personnel will pack all goods to our exacting requirements. Your items are carefully inspected and secured properly prior to shipping. We ship to thousands customers every day across multiple countries. This demonstrates our dedication to become the biggest online retailer in the world. Both Europe as well as the USA have distribution and warehouse centers.
Note: Orders that include more than one item will be assigned a processing date in accordance with the item.
Before shipping, we will conduct a thorough inspection of the items you've purchased. The majority of orders will be shipped within 48 hours. Expected delivery times are between 3-7 days.
Returns
The inventory is always changing, and not fully managed by us because of the involvement of many parties including the factory and our warehouse. Stocks are subject to change at any moment. It is possible that you will not receive your purchase after the order has been made.
Our policy lasts 30 days. If you don't receive your product within the 30 days period, we are unable to offer the option of a refund or exchange.
The item cannot be used and in its original condition. You must have the item in its original packaging.
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