Radial J+4 2-channel Signal Level Driver

Your Swiss Army Knife for Level Matching

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If you interface pro audio with low-level devices - instruments, MP3 players, computers, etc. - you need the Radial J+4. The J+4 takes incoming signals as low as 10dB and boosts them up to +4 for use in professional audio environments such as recording and broadcast studios or live touring. The J+4's 100% discrete circuitry ensures optimal signal integrity, while its active signal buffering and transformer isolation virtually eliminate noise. The simple control set includes a stereo gain control, a highpass filter, and a ground lift. For flexibility, J+4 is fitted with dual 1/4" and RCA jacks, and an 1/8" stereo TRS input.

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Like every Radial product, the J+4 is designed tour-tough. At Sweetwater, we expect nothing less from Radial. Its roadworthy 14-gauge steel I-beam inner frame protects the vulnerable PC board, while the unique book-end outside shell puts the controls, switches, and connectors in a protective zone. The bottom is covered in a non-slip pad for superior electrical and mechanical isolation. With its high headroom, ultra-low-noise performance, rock-solid dependability, and amazing versatility, you'll find the Radial J+4 to be indispensable.

• Increases gain of low-output instruments, computers, and music players
• Onboard stereo preamp boosts low-level signals to +4dB line level
• Transformer isolation eliminates noise due to ground loops
• Generous connectivity:
  • 2 x 1/4" jacks
  • 2 RCA jacks
  • 1/8" stereo TRS
• S/N ratio: greater than 95dB