HiFonics JUNO IV-DSP

The HiFonics JUNO IV-DSP combines a powerful 4-channel digital amplifier with an integrated 6-channel digital signal processor in an exceptionally compact enclosure. With an output power of up to 4 × 115 watts RMS into 2 ohms, the amplifier is ideal for high-end car audio systems that require both power and precise sound tuning.

The built-in 32-bit dual-core DSP allows for extensive customization of the audio signal. The DSP MASTER software can be used to configure crossovers, time alignment, equalizers, and custom level settings. Four DSP channels power the internal amplifier stages, while two additional channels are available via RCA outputs for driving external power amplifiers.

Thanks to built-in Bluetooth 5.0, the JUNO IV-DSP supports both wireless music streaming and convenient DSP configuration via compatible mobile devices. Alternatively, settings can be configured using a Windows PC. The high-level inputs with automatic power-on function also allow for integration into existing factory sound systems.

Thanks to its extremely compact dimensions, the amplifier can be installed in a space-saving manner while offering numerous connection and expansion options.

Technical Specifications

Amplifier

• Amplifier Type: 4-channel digital amplifier with integrated 6-channel DSP

• Amplifier Technology: Class D

• Output power at 4 ohms: 4 × 75 watts RMS

• Output power at 2 ohms: 4 × 115 watts RMS

• Maximum output power according to the manufacturer: 920 watts

• Frequency response: 12 – 23,000 Hz

• Signal-to-noise ratio: 82 dB

• Total Harmonic Distortion (THD): less than 0.12%

• Operating voltage: 8.5–20 volts

• High-level input sensitivity: 3–11 volts

• Low-level input resistance: 10 kOhm

• Input resistance (high level): 17 ohms

• Fuse rating: 40 A

• Dimensions (W × H × L): 115 × 35 × 140/166 mm
  
  

DSP processor

• Integrated 6-channel digital signal processor

• Processor architecture: 32-bit dual-core

• Processor clock speed: 122.88 MHz

• Sampling rate: 48 kHz

• 6 DSP output channels that can be processed independently

• 6 × 31-band output equalizer

• Adjustable High-Pass Filters (HP)

• Adjustable Low-Pass Filters (LP)

• Adjustable Bandpass Filters (BP)

• Filter slope: 6–48 dB/octave

• Runtime correction: 0–15 ms in 0.01-ms increments, according to the product page

• Master Level Control: −40 to +6 dB

• Individual channel level control: −40 to +6 dB

• Phase setting: Normal / inverted (0° / 180°)

• Freely Configurable Input Mixer

• Separate subwoofer volume control

• 10 storable sound setups, according to the user manual
  
  

Signal Inputs

• 4 × high-level inputs via cable connectors

• 1 × Stereo AUX input via RCA (L/R)

• 1 × optical digital input (S/PDIF)

• Supported optical input signal: up to 192 kHz / 24-bit

• 1 × built-in Bluetooth stereo audio receiver

• 1 × USB Type-B port for DSP configuration on a PC

• 1 × 6-pin DIN connector for optional remote control
  
  

Signal Outputs

• 4 × amplified speaker outputs via cable connectors

• 2 × DSP-controlled RCA preamp outputs

• RCA output voltage: 2.7 volts RMS, according to the user manual

• Remote output (REM OUT) for turning on additional amplifiers
  
  

Bluetooth and Software

• Built-in Bluetooth 5.0 receiver

• Wireless Audio Streaming via A2DP

• Support for aptX, according to the user manual

• Wireless DSP configuration via smartphone or tablet

• DSP MASTER Software for Windows 10 or later

• DSP MASTER App for iOS and Android

• Custom Configuration of the DSP Output Channels

• Saving and Retrieving Various Sound Settings
  
  

Additional Features

• Automatic power-on via DC detection at the high-level input

• Compact design for space-saving installations

• Expandable with additional power amplifiers via DSP RCA outputs

• Optional HiFonics HF-DMC OLED remote control

• Remote control for adjusting the overall volume and subwoofer level

• Selecting input sources and saved DSP settings using the optional remote control

• Control music playback using the optional remote control