| Content | 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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The compact HX-3 Headphone Distribution Amplifier is the perfect accessory to quickly provide three high-performance stereo headphone feeds with individual level controls from line-level sources. The HX-3 can produce very high headphone levels with extremely low noise and distortion.
HX-3 Key Features
Great for radio, television, film, and music production applications, the battery-powered HX-3 accepts balanced XLR line-level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs. Its 1/4-inch loop-out can connect multiple HX-3's for additional headphone outputs. Headphones are connected to panel-mounted 1/4-inch stereo connectors.
The HX-3 has a durable aluminum chassis to withstand the punishment of field and studio environments. The unit is powered by inexpensive batteries (two-AA) or external 5-18 VDC.
The HX-3 can add headphone outputs to the 552, 302, MixPre-D, MM-1, and USBPre-2.
HX-3 Key Features List - Three isolated headphone outputs with individual volume controls.
- 125 dB dynamic range with flat frequency response.
- Durable 1/4-inch connectors, panel mounted for strength.
- Stereo or mono monitoring.
- Peak LED indicates headphone overload.
- Two balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs.
- Loop Output to connect additional HX-3's in series.
- All-metal connectors solidly mounted to the chassis for durability and RF immunity.
- Free from "Pin-1" grounding problems.
- Internal battery-power for up to 18 hours from two AA alkaline batteries.
- Chassis-isolated 5 to 18 VDC input for easy external DC powering.
- Power LED indicates low battery power.
- High strength, extruded aluminum chassis with protective metal end panels.
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The PHDA02 - a reference class headphone amplifier with Stereo, Mono, and Dual Mono operation modes.
In Stereo mode, the L/R input signal is fed to the left and right earphones while the volume level is set by the Stereo/Left control. The front panel inputs provide simultaneous connection of two headphones in parallel. In Mono mode, the left and right channels are summed, and the resulting mono signal is fed to both the left and right earphones. Again, volume is governed by the Stereo/Left control. In Dual Mono mode, the left and right channels can be used independently with individual level controls for the left and right earphones.
The PHDA02 operates with all headphones with an impedance of 8 up to 200 Ohms. Impedance matching is achieved by a specially designed switchable transformer. Uncommon and costly, this solution provides superior performance, dynamic range, and signal-to-noise ratio at all loads.
Combo input sockets allow for balanced XLR and unbalanced TS headphone connection while parallel XLR outputs facilitate daisy chaining multiple units. The integrated power supply operates with mains from 100 VAC to 240 VAC.
The PHDA02 is equipped with low-noise op amps, and the output amplifiers' discrete power transistors are mounted on heatsinks. Dimensions are 1 U 9.5“.
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Overview
Sound can be perfected with Sennheiserʼs HDVA 600. Delivering authentic sound in its purest form, listeners are treated to a world of sheer listening pleasure. Years of knowledge in audio engineering and innovations in acoustic amplification, resulted in the creation of the HDVA 600. The consistently symmetrical signal processing and extremely low harmonic distortion guarantees an absolutely precise sound. Also, thanks to their pre-amp performance, they are easy to adjust and be connected directly to speakers for optimum audio amplification. In essence, the HDVA 600 provides a spectacular listening experience when paired with any Sennheiserʼs audiophile headphones.
Features
Consistently symmetrical signal processing for maximum sound quality
Symmetrical inputs and outputs simplify integration into a system
High-end ALPS quadruple potentiometer achieve perfect channel equality
Variable gain factor (five stages) for optimized use of low impedance headphones
Sophisticated metal housing to protect against signal scatter and vibration
Solid controls turned from solid metal, providing the utmost in long-term stability | The new HP4 from PreSonus answers the need for a headphone distribution
amplifier with professional specifications in a small package at an affordable
price. The HP4 features four discrete headphone outputs on the front panel
each with its own volume potentiometer and 150mW of amplification per channel.
The HP4 also features adjustment over control room monitors with a separate
volume control, monitor mute switch and mono switch giving you an extremely
powerful monitoring solution at an amazingly low price.
Features
? Four High Power Headphone Outputs
? Ultra loud (150mW per channel)
? Ultra quiet operation
? Musical Wide Dynamic Range
? Control Room Monitor Outputs with Level Control
? Mono or Stereo Operation
? Monitor Mute Switch
? Daisy Chain an Infinite Number of Units
? Compact package
Technical Specifications
Input
TRS Impedance 10K Ohms
Panel Controls
Headphone Level 1 to 12
Monitor / Feed Output -80dB to +10dB
Mono Switch
Monitor / Feed Mute
Power Supply
Type Linear
Input 16VAC/1000mA
Output
TRS Balanced 51 Ohms Impedance
Performance
THD+Noise (Unweighted) 0.002%
Noise Floor -98dB
Signal To Noise >95dB
Power Supply Rejection >98dB
Power 16 Watts
Physical
Weight 5lbs./ 2.3 kg.
Dimensions 5.5 x 5.5 x 1.75
Mounting Max Rack and Universal Rack Tray
Chassis Steel
Panel Brushed Aluminum
Sides Cast Aluminum | In-ear monitor amplifier for personal monitor applications. High power and \"drummer proof\" headphones output. Dual XLR inputs allow for 2-channel mono or stereo operation. Switchable stereo/mono operation with mix function. Level and Balance/Mix controls. Runs up to 12 hours on a 9 V battery (not included). Integrated current limit protects your ears and headphone. Convenient belt-pack clip included. Mounts easily on a standard mic stand with 5/8” and 3/8” thread.
| Brand |
BEHRINGER |
| Model |
P1 |
| Part Number |
000-AZM |
| Mixing Channels |
2 |
| Warranty |
1 Year |
| Application |
Portable PA |
| Series |
P series |
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