Currently not in stock: Please contact our sales team for product availability and lead times. Thanks to our strong supplier relationships our lead times are some of the quickest in the industry, giving us full confidence that we can still fulfil your requirements on back-order quicker than any competitor.
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If you place your order and we've not got a product in stock, a member of the sales team will contact you with our supplier lead times or to find an alternative.
Please call the sales team on 01525 850085 or email sales@leisuretec.co.uk if you have any questions.
Wireless Microphone Systems
We do our best to keep healthy stocks across the many Wireless Microphone System SKUs but in the rare case where we don't have your required system in stock, please contact our sales team as we can often make your product to order by borrowing the system components (transmitters, receivers or mics) from other stocked systems.
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Main Features
Stereo preamp boost signals to +4dB balanced line level
Increases gain for low output instruments & music players
Transformer isolated to eliminate noise caused by ground loops
Multiple input connector options to interface with any device
J+4 Stereo Line Driver Balanced -10dB to +4dB Interface
The J+4™ is a stereo interface designed to accept unbalanced low output devices such as instruments, computers or mobile devices and boost their signal to a balanced +4dB level for connection to professional audio recording and playback equipment.
The J+4 allows you to boost nearly any stereo signal up to a +4dB balanced line level output, which can be sent over long distances without signal loss and connected directly to pro audio equipment such as mixers or recording interfaces. Multiple input connectors are available for integration with a variety of devices, including a stacked set of ¼" jacks for DJ mixers or keyboards, RCAs for CD players and a mini 3.5mm jack for smartphones and tablets. The J+4 delivers exceptional sonic performance, and is able to provide clean gain and eliminate noise by combining the advantages of active signal buffering with transformer isolation.
Product Features
Stereo preamp boost signals to +4dB balanced line level
Increases gain for low output instruments & music players
Transformer isolated to eliminate noise caused by ground loops
Multiple input connector options to interface with any device
Product Specifications
Audio circuit type: Active -10dB ~ +4dB line converter, transformer isolated
Number of channels: 2
Frequency response: 20Hz ~ 20KHz (± 2dB)
Dynamic range: 102dB
Total harmonic distortion: 0.004% @ 1kHz, +10dBu output
Phase Deviation: 0.5° @ 100Hz; 4° @ 20Hz
Input Impedance: 10k Ohms, unbalanced
Output Impedance: 1.6k Ohms, balanced
Maximum Input: +17dBu @ 1kHz, 1% THD+N
Maximum Output: +15dBu @ 1kHz, 1% THD+N
Features
Ground lift, HPF, Level Control
Input Connectors: 1/4", RCA, 3.5mm
Output Connectors: XLR
General
Construction: 14-gauge steel
Size (L x W x D): 84 x 127 x 48mm (3.3" x 5.0" x 2")
Weight: 0.70 kg (1.55 lbs)
Shipping size (L x W x D): 102 x 76 x 165mm (4" x 3" x 6.5")
Shipping weight: .87 kg (1.92 lbs)
Power: +15VDC/400mA adapter Included
Conditions: For use in dry locations only between 5°C and 40°C
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