Amplifier with DSP processor Park Audio GS7d

The Park Audio GS7d is a power amplifier designed for professional applications and the most demanding uses. It is equipped with a four-channel DSP processor from DFM Audio, supports FIR filtering, and offers extensive signal processing capabilities. With filters, crossovers, 20-point per channel equalization, dynamic EQ, up to 1.5 seconds of delay per channel, RMS and Peak limiters, two 500-point FIR blocks, and a 96-cell loudspeaker library, users gain full control over sound. The device includes 92 user presets stored in memory.

The DSP processor is based on SHARC (96 kHz/40-bit floating point). The analog-to-digital and digital-to-analog converters provide incredibly clean sound with a dynamic range of up to 120 dB, low distortion levels (-100 dB THD/N for ADC and -104 dB THD/N for DAC), and signal levels reaching +18 dBU for both input and output.

The GS7d has two analog inputs and one AES digital input, as well as two Ethernet ports with an integrated router for network control. The NetControl software allows centralized management of multiple amplifiers. The THRU linear outputs (post DSP) allow you to expand the audio system by passing processed signals to other amplifiers or external devices.

This amplifier belongs to the TD class, combining the energy efficiency of class D with the precision and accuracy of analog amplification. Each channel has a separate switching power supply. The GS7d features a reliable protection system against short circuits, overheating, high-frequency signals, DC voltage at the output, voltage surges up to 400 V, and includes an integrated clip limiter.

The front panel includes an LCD display, MUTE buttons, signal, overload, and limiter activation indicators. Cooling is forced, using removable dust filters. Output connectors are SpeakON, and the power cord is detachable PowerCon.

Features

• 4-channel DSP processor from DFM Audio with FIR filtering support
• SHARC DSP, 96 kHz, 40-bit floating point
• DSP features: crossovers, up to 20-point EQ, dynamic EQ, delays up to 1.5 s, RMS and Peak limiters
• 2 FIR blocks with 500 points per channel
• Loudspeaker library (96 cells), 92 user presets
• High-quality ADC/DAC with a dynamic range of 120 dB
• 2 analog inputs (XLR), 1 AES input
• 2 Ethernet ports, integrated router
• Support for NetControl software for group management
• THRU linear outputs (post DSP)
• TD class amplification with separate switching power supplies
• Protection: short circuit, overheating, high-frequency signals, DC voltage, voltage surge up to 400 V
• Built-in clip limiter
• Front panel: LCD display, MUTE buttons, signal, overload, and limiter activation indicators
• Forced cooling, removable dust filters
• Output connectors — SpeakON, power cable PowerCon