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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“.
| 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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MyMONITOR - Personal Headphone Monitor Mixer Overview
Problem: A performer needs to hear him/herself through headphones exclusively or mixed
with the output of a mixer, CD player, tape deck, or other stereo line level source. Only the
mic signal, however, should be going to the main mixer.
Solution: Connect MyMONITOR between the mic and line source, and the mixer. The Mic
and line Monitor levels can then be adjusted for mix and volume through the headphones.
Only the mic signal will go to the board. And since MyMONITOR can be AC or battery powered,
the unit can be used on a large stage or wherever there is no AC outlet nearby. Dynamic or
condenser mics can be used since phantom power would come through the Mic Thru jack from
the mixer or other source.
MyMONITOR - Personal Headphone Monitor Mixer Specifications:
Signal To Noise Ratio 90dB
Gain 15dB (1/4 in), 50dB (XLR)
Maximum Input Level -20dB mic, 40dB Monitor
Output Impedance 10 ohms
Power Requirements 12V DC (Adapter included) or one 9V battery
Phantom Power ON/OFF switch
Power LED indicator
Dimensions 4.5x2.75x1.5 inches (112mm x 72mm x 40mm)
Weight 1.3lb (590g)
| Behringer HA-400 Ultra-Compact 4-Channel Stereo Headphone Amplifier
Mini to the max! You can use this super-compact stereo headphone amplifier with practically all headphones?four of them at the same time, to be exact! For example, you can let up to 4 different people in your studio listen to the main mix while the recording is being made, and each listener can determine his own volume level using the dedicated output level controls. The HA400 contains 4 high-power stereo amplifiers that maintain the highest sonic quality even at maximum volume levels. Ultra low-noise 4580 operational amplifiers are included for outstanding audio performance?these are the same op amps found in ?full-size? audio equipment?plus, a DC 12-Volt adapter is included.
If you are one of those musicians who like to deck out their equipment with lots of bells and whistles, the HA400 definitely makes a great addition to the functionality of your studio.
The Behringer HA400 offers flexible amplification for up to 4 headphones. Whether you're tracking a full band, playing to a backing track, or just listening to your mix, this compact amp gives every performer diverse volume control.
Hear everything with clarity. The HA400 promises high audio quality with zero interference, no matter what headphones you use. Behringer are relied upon by professional musicians everywhere. With the HA400 headphone amplifier, you'll become a part of 50+ years of innovation and expertise.
The Highest Quality Monitoring Possible
Great monitoring is at the heart of a tight performance. Whether you're on stage or in the studio, the HA4000 delivers ultimate control for everyone playing. Discover the highest quality audio from 4 high power, stereo amplifiers. Even at maximum volume, this tidy headphone amp provides clear sound without muddiness or unwanted noise.
Industry Leading Standard
There's a reason why Behringer are leaders in their field. With 50+ years of industry experience, they've built a legacy around exceptional build quality and innovative design. The HA4000 is no exception. Every channel preserves the original sonic qualities of your input signal. That's performance you can trust.
Features
- Ultra-compact headphone amplifier
- Ideal for stage or studio use
- Full control for every channel with 4 independent stereo high-power amplifier sections
- Extremely high audio quality with virtually all types of headphones, even at maximum volume
- 12V DC power adapter included
- Designed and engineered by Behringer in Germany
Specifications
Line Inputs
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- Type: 1/4'' TS Jack, Stereo
- Impedance: 100kohms
- Max. input level: +15dBu
Headphone Outputs
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- Type: 1/4'' TRS Jacks, Stereo
- Impedance: Approx. 80ohms
- Max. output level: Approx. 40mW in 100ohms
Power Supply
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- Power supply: External power supply 12V
Dimensions/Weight
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- Dimensions: 47mm (H) x 57mm (W) x 104mm (D)
- Weight: 0.32kg
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- Ultra-compact monitor headphone amplifier for studio and stage applications
- Personal \'\'more me\'\' mixer – mix a mic plus a monitor signal and hear them via headphones
- Flexible Mic In and Mic Through connectors plus Ground Lift switch
- Stereo Monitor input with dedicated Monitor Level control and Mono/Stereo switch
- High-power headphone output on 1/4\'\' and 1/8\'\' jack connectors
- DC 12 Vadapter included
- 3-Year Warranty Program*
- Designed and engineered in Germany
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Overview
With Sennheiserʼs HDVD 800, sound is perfect. The HDVD 800 is able to connect with digital sources and is equipped with a high-quality Burr-Brown digital/analog converter (DAC) that converts digital audio data into analog signals with a resolution of 24 bits and a sampling rate of up to 192 kHz. This enables the HDVD 800 to transmit the entire frequency spectrum of high-end audio sources without any loss of frequencies.
In addition to the symmetrical inputs, the HDVD 800 also has an asymmetrical input socket; incoming signals are symmetrized before further processing takes place. Digital sources can be connected to the rear of the unit via an XLR (AES/EBU) input, optical and coaxial (S/PDIF) digital inputs or USB. All digital inputs accept signals up to 24 bit at 192 KHz*. Designed and manufactured in Germany, this high-end, solid-state amplifier harmonize perfectly and deliver an ultimate acoustic performance when paired with any of Sennheiserʼs audiophile headphones.
Features
D/A transducer for all common formats up to 24 bit / 192 kHz
D/A transducer can be used for CD and DVD players
AES/BU, S/PDIF, USB inputs
Symmetrical (XLR) and asymmetrical (RCA) analog inputs
Symmetrical output
Sockets for four sets of headphones (two of which symmetrical)
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