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Product Highlights
- 10 Ports to Connect to ME-1
- Link Hubs for More Ports
- Power Available On All Ports
- Standard ME-D Input Card
- Works w/ dSNAKE (GLD & Qu Mixers)
- ACE (iLive System) & AVIOM A-Net 16
- Inludes Network Port for Setup
- Names and Links Can Be Received
- Quitet Cooling Fan
| 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.
- Model Name: LDHPA1
- Product Type: headphone amplifier
- Type: 1-channel stereo
- Inputs: Main Input (Stereo), 1 x Aux In (Stereo)
- Input Connections: XLR-F (L + R Input, balanced), 3.5 mm stereo jack (Aux In)
- Input Impedance: 6 kOhm (XLR In), 10 kOhm (3.5 mm jack)
- Input Sensitivity: 3 dBu (XLR In), -6 dBV (3.5 mm jack)
- Max. Input Level: 16 dBu (XLR In), 7 dBV (3.5 mm jack)
- Protection Circuits: Audio Limiter, Max. Input leveling, Power OFF -Mute relay
- Headphone Outputs: 1
- Headphone Output Connectors: 3.5 mm stereo jack
- Power Output: 2 x 1.65 Vrms / 1% THD 33 Ohm Load
- Minimal Connected Impedance per Channel: 16 ohms
- Frequency Response: 20 Hz - 40,000 Hz
- THD 1 kHz Sine: 0.04%
- Controls: Power/Volume, Balance L/R, Stereo/Mono (Focus) switch,
- Indicators: Signal (Green) / Peak (Amber), Battery (low battery: red) / Power LED (Power ON: green)
- Power Supply: 9 V DC block battery, DC jack
- Operating Voltage: 9 V DC
- Power Consumption: Nom. 70 mA / Max. 150 mA
- Housing Material: plastic
- Housing Surface: soft-touch
- Housing Colour: black
- Width: 80 mm
- Height: 42.5 mm
- Depth: 133 mm
- Accessories (included): belt clip, 1 m 3.5 mm stereo jack cable
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- Distributes the signal of 1 audio source to 4 sets of headphones
- 4 channels with separate level controls and headphone outputs
- All connections via 6.3 mm (1/4“) jacks
- Operation via supplied power unit
| LD Sytems HPA 4 - a compact and powerful headphone amplifier
The LDHPA4 has small dimensions, can handle up to 4 headphones and has an output power with no equal in its class. That means high volume with no distortion. With these features the LDHPA4 is an essential tool for every project- and home studio.
Specifications
Product type
Headphone Amp:
Inputs
2
Input connectors
6.3 mm TRS , RCA
Input impedance
1 k Ohm(s)
Outputs
2
Output connectors
6.3 mm Jack
Power output
4 x 100 mW
Minimum connected impedance
10 Ohm(s)
Frequency response
20 - 20.000 Hz
Controls
4 x headphone volume , Mono/stereo switch
Indicators
Power
Operating voltage
External Power Supply
Operating voltage
24 V DC
Cabinet material
metal
Cabinet surface
painted
Width
94 mm
Height
48 mm
Depth
82 mm
Weight
0,27 kg
Accessories (included)
power supply |
Info
Apogee Groove is the best portable USB DAC and headphone amp for listening to music on your Mac or PC. Groove takes the same high quality audio technology found in the worldʼs most prestigious recording studios and delivers it to your laptop. Connect Groove directly to your computer and connect your headphones or powered speakers directly to Groove. Itʼs that easy. Youʼll be amazed by the difference in sound quality. Highlights: USB 2.0 connection to Mac and PC Up to 24 bit / 192kHz audio ESS Sabre DAC Constant Current Drive?, Ultra-smooth frequency response for any headphones Quad Sum DAC?, 4 DACs per channel for highest dynamic range and lowest distortion Asynchronous clocking Max output level: 225mW into 30 Ohm Multi-color LEDs for status and level indication Powered by USB Top panel buttons for adjusting output level and muting Compact and portable (95mm H x 30mm W x 16mm T) Premium aluminum build quality Built in the USA Pricing to be announced
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INPUT: 1 audio stereo, 1Vpp/50kΩ on a 6.5mm stereo phone socket.
OUTPUTS: 5 audio stereo, 500mW/8Ω on 6.5mm stereo phone sockets.
AUDIO BANDWIDTH (-3dB): 25kHz.
CONTROL: 5 stereo output level controls (front), 1 mono switch (rear).
GAIN RANGE: -60dB to +10dB.
S/N RATIO: 78dB.
THD: 0.08% @100mW.
POWER SOURCE: 12V DC, 370mA nom, 1A max.
DIMENSIONS: 16.5cm x 12cm x 4.5cm (6.5” x 4.72” x 1.77”) W, D, H.
WEIGHT: 0.68kg (1.5lbs) approx.
ACCESSORIES: 12V DC power supply.
OPTIONS: RK-1 19" rack adapter.
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