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- Very compact headphone amplifier for in-ear monitoring
- XLR and jack input (combined, lockable)
- 3.5 mm Mini-jack jack for earphones
- Built-in stereo / mono source switch
- Volume control with on / off switch
- Operation up to 12 hours with 2 AAA batteries or rechargeable batteries (not included, suitable batteries: Article Nr. 417474)
- Dimensions (H x W x D): 33 x 38 x 132 mm
- Weight: 0.140 kg
- Includes belt clip
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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
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Πληροφορίες
Φορητός προενισχυτής (DAC) υψηλής ποιότητας 24bit/192kHz για ακουστικά. Σύνδεση USB με PC/Mac. Ενσωματωμένη τεχνολογία Constant Current Drive η οποία δίνει στα περισσότερα ακουστικά του εμπορίου ομοιόμορφο ηχητικό αποτέλεσμα με πλούσιο συχνοτικό εύρος, Quad Sum DAC τεχνολογία για χαμηλά επίπεδα θορύβου και εξάλειψη της παραμόρφωσης. Μέγιστη έξοδος 225mW στα 30 Ohm. Διαθέτει 2 knobs για την ρύθμιση της έντασης, 3 led για τις ενδείξεις της στάθμης και έξοδο ακουστικών. Ελαφρύ σώμα από αλουμίνιο. Κατασκευασμένο στις ΗΠΑ.
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Plug In, Rock Out! The headphone guitar amp that lets you enjoy serious guitar sound, fast.
Jamming late at night? Donʼt want to wake the neighbors? Maybe you want to work out a lick with your MP3 player without taking the time to set up your amp. You want to play guitar right now. amPlug is the answer. Simply plug this palm-sized headphone guitar amp directly into your guitar, and enjoy serious guitar sound anywhere, anytime. The amPlug series received wide-ranging acclaim from guitarists around the world for delivering incredible guitar tone in a pocket-sized unit. The NEW amPlug 'Acoustic' quickly creates shimmering, rich acoustic guitar sounds. Two distinct sounds are available using the Fat/ Bright switch. The Blend combines the acoustic tone with the original signal for just the right mix! In combination with electric guitar's own tone controls and pickup selection, the sound variation is unlimited. The ultra-long battery life provides up to 27 hours of extended enjoyment! At home, in the studio and on the go, amPlug Acoustic delivers superb acoustic guitar sounds anytime, anyplace. Weight: 40g /1.41oz. (not including batteries). Included items: two AAA zinc-carbon batteries
| 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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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 |
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