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Musikinstrument / Studio / Hörlursförstärkare

Hörlursförstärkare i rackformat med sex kanaler. Headamp 6 Pro har separata bas- och diskantkontroller, in- och utgångar på både fram- och baksida och kan jobba i stereo, mono och summerad mono.
The QH4 is a 4-channel headphone amplifier designed to distribute your audio to up to four individual headphones, each with its own volume control. Its compact design is perfect for use with any studio or desktop workstation, as well as with your laptop or smartphone when you're recording on the go.

- 4-channel stereo headphone distribution amplifier
- Four independent 1/4" stereo headphone channels
- Individual volume control on each headphone channel
- Two balanced 1/4" input connectors
- Stereo 1/8" Aux input and output
- Master Mute and Mono-summing switches
Presonus svar till alla studios som behöver en tyst hörlursförstärkare med professionella specar! 4 separata hörlursutgångar.

Connector Type ¼” TRS, balanced
THD+N 0.0025%, 1 kHz, unity gain
Max Input Level +18 dBu, <0.5% THD+N, unity gain
Input Impedance 10 kΩ
Frequency Response 20 Hz - 20 kHz, ±0.5dB
Monitor Outputs
Connector Type ¼” TRS, asymmetrical, impedance-balanced
THD+N 0.0025%, 1 kHz, unity gain
Max Output Level +18 dBu, <0.5% THD+N
Output Impedance 51Ω
Frequency Response 20 Hz - 20 kHz, ±0.5dB
Headphone Outputs
Connector Type ¼” TRS, stereo
Max Output Power 130 mW/Ch., <0.5% THD+N, 60Ω load
Frequency Response 20 Hz - 20 kHz, ±0.5 dB, 60Ω load
Headphone Impedance Working Range 32Ω - 600Ω
External Adapter Type +12 VDC, 1000 mA, center pin positive
Dimensions 1/3U rack-mount (with standard rack tray, not included)
Height 1.75” (44.45 mm)
Depth 5.5" (139.7 mm)
Width 5.5” (139.7 mm)
Weight 5 lbs (2.27 kg)
Presonus svar till alla studios som behöver en tyst hörlursförstärkare med professionella specar6 separata hörlursutgångar.
&160; &160;Professional multi-purpose headphones amplifier system for stage and studio applications &160;Four independent high-power amplifier sections provide up to four stereo mixes &160;Each input/aux section can be separately set to capture individual demands for more me mixing &160;Multi-functional ST/2-CH switch on each channel allows for either stereo playback or double mono operation &160;Ultra-musical high and low EQ per channel &160;Output level control with accurate 4-digit LED output meter on each channel &160;One front and two rear stereo 1/4 TRS outputs per channel &160;Main stereo XLR and 1/4 TRS input and output channels &160;Ultra low-noise operational amplifiers for outstanding audio performance
Kompakt 4-kanalig hörlursförstärkare.
6-kanalig hörlursförstärkare.
2-kanals hörlursförstärkare för monitorbruk på scen eller i studio.
4-kanalig hörlursförstärkare. 1HE
The LD Systems HPA 6 is a highly flexible1U 19 rack format headphone amplifier with 6 fully independent channels and comprehensive featuresfor a wide range of professional audio monitoring applications.Each channel provides a 6.3 mm TRS headphone output on the front panel withlevel control, mono/stereo switching, discrete left/right muting; and a 6.3 mm TRS Aux input withMain/Aux balance control; for mixing in further signal sources. Four-segment LED meters permit visual output level monitoring, and two 6.3 mm TRS outputs per channel on the rear allowfor connecting a total of 18 headphones.The HPA 6s main section features amaster level control with eight-segment LED metering; and 6.3 mm TRS input to mix in an additional source with all channels. The rear panel provides the main stereo inputs on balanced XLR and 6.3 mm TRS connectors and stereo outputs for daisy chaining multiple units.
- Type: 6-channel
- Inputs: Main Input (Stereo), Direct In (Stereo), 6 x Aux In (Stereo)
- Input Connections: XLR and 6.3 mm jack L&R (Main Input, balanced), 6.3 mm stereo jack (Direct In), 6.3 mm stereo jack (Aux In)
- Input Impedance: 13 kOhm
- Line Outputs: Main Output (stereo, balanced)
- Line Output Connectors: XLR and 6.3 mm jack L&R
- Headphone Outputs: 6 x 3
- Headphone Output Connectors: 6.3 mm stereo jack
- Power Output: 6 x 125 mW
- Minimal Connected Impedance per Channel: 8 ohms
- Frequency Response: 20 Hz - 20.000 Hz
- Controls: Main Input Level, 6 x Input Mix Main/Aux, 6 x Headphone Level, 6 x Mono Switch, 6 x Mute L&R, Power
- Indicators: Main Input/Direct In Level Meter (8-segment LED chain), 6 x channel level meter (4-segment LED chain), 6 x mono LED, 6 x Mute L&R LEDs, Power LED
- Power Supply: IEC power socket
- Operating Voltage: 220 - 240 V AC, 50 - 60 Hz / 110 - 120 V AC, 50 - 60 Hz
- Power Consumption: 40 W
- Cabinet Material: metal
- Cabinet Surface: painted
- Width: 483 mm
- Height: 44 mm
- Depth: 217 mm
- Accessories (included): power cord

- Professional multi-purpose headphones amplifier system for stage and studio application
- Eight totally independent stereo high-power amplifier sections in one rack space
- Two stereo main inputs for two independent mixes, accessible from all eight channels
- Eight independent direct inputs provide up to eighth individual stereo mixes
- Output level control and accurate LED output meter on every channel
- Mono/stereo switch per channel for more flexibility
- Direct input connector on each channel for easy connection of any sound source
- Paralleled outputs allow cascading of several headphones amplifiers
- Toroidal transformer for noiseless operation and low magnetic interference
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.
- Model Name: LDHPA4
- Max. Output Power: 4 x 100 mW
- Input Impedance: 1 kohm
- Minimum Load per Channel: 10 ohms
- Input Connectors: 2 x RCA, 6,3 mm Phone Jack Stereo
- Output Connectors: 4 x 6,3 mm Phone Jack Stereo
- Controls: 4 x Headphone Volume Control, Mono / Stereo Switch
- Indicators: Power LED
- Power Requirement: 24 V External AC Adapter (included)
4-kanalig hörlursförstärkare med separata volymkontroller. Inkl. nätadapter.
Koppla in upp till sex par hörlurar samtidigt. Tele AUX in för varje kanal samt Main in tele. 4 LED-lampor på varje kanal för monitoring. Stereo XLR output både hona och hane.
Digital processor för In Ear-monitor och annan monitorlyssning.
4-kanals hörlursförstärkare med individuell volymkontroll för varje kanal, robust aluminiumchassi 

● Four Channel Stereo headphone amplifier
● Maximum Output power on each channel regardless of different headphone impedances
● Four 1/4-inch stereo headphone outputs
● Individual volume control for each headphone output
● Stereo 1/4 inch input connector
● Rugged aluminum extrusion chassis
● Large rubber bumper feet
● 18 Volt AC adapter included
● Three year extended warranty
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 additionto 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.A3.5 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. Afull-fledged limiter is integrated for distortion-free playback and as protection against feedback.The LD Systems HPA 1 hasbi-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
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.
Hörlursförstärkare av High-End modell, avsedd främst för GRADO RS1 och RS2. Detta är en helt unik produkt som lyfter hörlurslyssningen till oanade höjder. För att matcha utseendet på Reference-seriens hörlursmodeller, så är elektroniken inbyggd i ett urfräst stycke av mahogny! RA1 drivs med två stycken 9 volt batterier LR61. Detta gör att förstärkardelen får en stabil strömförsörjning utan nätstörningar eller brum-problem.
Rackmonterbar hörlursförstärkare för 4 par hörlurar. Separata volym- och eq-kontroller, dubbla gemensamma stereoingångar samt stereo Aux-ingång inject på varje kanal. 1HE.
Bass Traveler är perfekt för er som vill lyssna samtidigt från samma källa. Många telefoner och mp3-spelare har för låg utgångsvolym för att två ska kunna lyssna samtidigt och det är då denna batteridrivna hörlursförstärkare kommer till användning. En stereoingång och två hörlursutgångar. Drivs av inbyggt uppladdningsbart batteri som laddas smidigt via en usb-port.