DP36+ 3-Input 6-Output Professional DSP Loudspeaker Management Processor

Product Overview

The Haozhiseng Audio DP36+ is a professional 3-input, 6-output digital loudspeaker management processor designed for PA systems, live performances, touring systems, houses of worship, clubs, conference facilities, rental companies, and fixed audio installations.

Equipped with a 96 kHz sampling rate, 32-bit floating-point DSP processing, and 24-bit A/D and D/A converters, the DP36+ provides precise signal control with clear audio performance and low processing latency.

Each input and output channel offers independent processing functions, including parametric EQ, crossover, delay, gain, polarity, limiter, compressor, dynamic EQ, mute, and flexible signal routing. The processor can be configured from the front panel or controlled from a computer through USB, RS-485, or TCP/IP.

Key Features

• 3 balanced XLR input channels
• 6 balanced XLR output channels
• 96 kHz sampling frequency
• 32-bit floating-point DSP processing
• 24-bit A/D and D/A converters
• Independent processing for every input and output channel
• 6-band parametric EQ on each input channel
• 6-band parametric EQ on each output channel
• Adjustable crossover, delay, gain and polarity
• Built-in limiter, compressor and dynamic EQ
• Flexible input-to-output signal routing
• USB, RS-485 and TCP/IP computer control
• 2 × 24-character blue LCD
• Input and output LED level indicators
• Front-panel mute and channel-edit controls
• Suitable for professional loudspeaker and PA system management

Input Processing Functions

Input Gain

Each input channel provides independent gain adjustment.

• Adjustment range: −80 to +12 dBu
• Adjustment resolution: 0.1 dBu

Input Mute and Polarity

• Independent mute control for every input channel
• Selectable normal or reversed polarity

Input Delay

• Delay range: 0–1,000 ms
• Fine adjustment resolution: 10 μs
• Coarse adjustment resolution: 1 ms

Input Equalizer

Each input channel provides six adjustable EQ filters with the following selectable filter types:

• PEQ
• Low-Shelf
• High-Shelf
• First-order All-Pass Filter
• Second-order All-Pass Filter

PEQ adjustment:

• Frequency range: 19.7 Hz–20 kHz
• 241 selectable frequency points
• Bandwidth: 0.05–3 octaves
• Bandwidth resolution: 0.01 octave
• Gain range: −20 to +20 dB
• Gain resolution: 0.1 dB

Shelf filter adjustment:

• Frequency range: 19.7 Hz–20 kHz
• 241 selectable frequency points
• Selectable 6 dB/oct or 12 dB/oct slope
• Gain range: −20 to +20 dB
• Gain resolution: 0.1 dB

Input Dynamic EQ

Each input channel provides two independent dynamic EQ sections with adjustable frequency, bandwidth, threshold, target level, ratio, attack time and release time.

Input Compressor

• Threshold range: −40 to +20 dBu
• Threshold resolution: 0.1 dBu
• Compression ratio: 1:1–20:1
• Attack time: 0.3–200 ms
• Release time: 50–5,000 ms

Automatic Gain Control

Each input channel includes automatic gain control with adjustable threshold, target level, ratio, attack time and release time.

Output Processing Functions

Output Gain and Routing

• Independent gain control for every output channel
• Each output can be routed from any input channel
• Multiple input channels can be combined and assigned to one output

Output Mute and Polarity

• Independent mute control for every output channel
• Selectable normal or reversed polarity

Output Delay

• Delay range: 0–1,000 ms
• Fine adjustment resolution: 10 μs
• Coarse adjustment resolution: 1 ms

Crossover Filters

Each output channel includes independent low-pass and high-pass crossover filters.

Available filter types:

• Linkwitz-Riley
• Bessel
• Butterworth

Crossover specifications:

• Frequency range: 19.7 Hz–20 kHz
• 241 selectable frequency points
• Available slopes: 12, 24, 36 and 48 dB/oct

Output Limiter

Each output channel provides an independent limiter to protect connected amplifiers and loudspeakers from excessive signal levels.

• Threshold range: −40 to +20 dBu
• Threshold resolution: 0.1 dBu
• Attack time: 0.3–200 ms
• Release time: 50–5,000 ms

Output Compressor

• Threshold range: −40 to +20 dBu
• Compression ratio: 1:1–20:1
• Attack time: 0.3–200 ms
• Release time: 50–5,000 ms

Output Equalizer

Each output channel provides six adjustable EQ filters with PEQ, Low-Shelf, High-Shelf, first-order All-Pass and second-order All-Pass filter options.

PC Control and System Integration

The DP36+ supports several control and communication methods for portable and fixed audio systems:

• Front-panel USB connection
• Rear-panel RS-485 connection with Phoenix terminal
• TCP/IP connection through an RJ45 network port
• PC software for system configuration and parameter management
• Suitable for individual or multiple-device control

Technical Specifications

Applications

• Professional PA loudspeaker systems
• Live performances and touring productions
• Line array speaker systems
• Active crossover systems
• Subwoofer and full-range speaker management
• Stage monitor systems
• Houses of worship
• Clubs and entertainment venues
• Conference and multipurpose halls
• Professional audio rental systems
• Fixed sound installations

Why Choose the DP36+?

The DP36+ combines flexible 3-input and 6-output signal routing with comprehensive DSP processing and multiple computer-control options. Its independent EQ, crossover, delay, limiter, compressor and routing functions make it a practical system-management solution for professional loudspeakers, amplifiers and multi-way PA systems.

USB, RS-485 and TCP/IP connectivity simplify system setup, adjustment and centralized control for both portable sound systems and permanent audio installations.