EN

Name*

Email*

Country*

Whatsapp/Phone

Company

Buyer-Project
Buyer-Individual
Distributor/Channel Partner
Consultant/system Integrator
Reseller/Dealer
OEM/ODM
Technical Support
Warranty & Repair
  • {{item.name}}

This site is protected by DSPPA Audio, and also applied to web browsers' Privacy Policy and Terms of Service

Home Professional AudioAudio ProcessorClassical Audio Processor 16 Input/Output Digital Audio Processor with DSP D6642H D6643H D6644H

120dB ; ≤0.002% @1kHz, +4dBu

16 Input/Output Digital Audio Processor with DSP

D6642H D6643H D6644H
  • 24-bit/48kHz sampling frequency, high-performance A/D and D/A converters, and a 32-bit floating-point DSP processor; full-featured matrix mixing delivers excellent and clear sound quality.
  • High-precision input sensitivity adjustment with 21 levels, 3dB steps; maximum input gain up to 60dB.
  • Efficient algorithm processing: AFC, AEC, ANS, AUTOMIXER, EQ, GATE, AGC, and more.
  • Rich interface expansion: 8-channel configurable GPIO with support for external input levels of 3.3V to 24V; USB interface for recording, playback, and scene storage; RS-485 for automatic camera tracking to simplify video conferencing setup; RS-232 bidirectional serial control for integration with video matrix, cameras, and other devices.
  • Multi-scene preset support with user-friendly software interface.
  • Fast operation via web-based control, compatible with Android and iOS systems.
  • 1 USB recording channel.
Overview Specifications Related Products Solutions Latest News & Cases

The device supports up to 16 input/output analog channels and 1 extended USB recording/playback channel. It is equipped with a high-quality 21-stage preamplifier circuit, a DSP processing bus architecture, and features multiple functions including echo cancellation and noise reduction to restore high-quality sound. It is primarily applied in a variety of large venues such as theaters, concert halls, remote video conferencing rooms, sports venues, churches, conference centers, and theme parks. Its operation is straightforward and intelligent.


Specifications of 16 Input/Output Digital Audio Processor with DSP D6642H D6643H D6644H


Model

D6642H D6643H D6644H

Maximum Number of Inputs

16

Maximum Number of Outputs

16

Number of 232 Serial Port

1

Number of 485 Serial Port

1

Number of GPIO

8, freely configurable I/O

Number of RJ45

1

Number of USB

1, support recording and broadcasting

Maximum Analog Gain

-60dB

Phantom Power

48V

Input-output Quantization

48KHz/24bit

A/D Dynamic Range

120dB

Input CMRR

80 dB @ +24dBu  @60Hz

Input Impedance

20kΩ balance, 10kΩ unbalance

Maximum Input

24dBu

D/A Dynamic Range

120dB

Channel Isolation

100dB

Frequency Response

20～20kHz (±0.25dB)

THD (THD+N)

≤0.002% @1kHz, +4dBu

Output Impedance

100 Ω balance, 50 unbalance

Maximum Output

24dBu

Working Power

AC110V-220V/50Hz

Working Temperature

0~40℃

Package Dimensions (mm)

567×377×98

Machine Dimensions (mm)

483×270×44

Gross Weight

3.2kg

Net Weight

2.15kg

Related Classical Audio Processor

+28dBu

Compact 8-Channel Multi-Functional Mixing Console

CM801

32-bit fixed/floating-point DSP ; ＞100dB

Line Array Sound Field Processor with DSP Function

D6684

20Hz-20kHz (±3dB) ; AC 220-240V/50-60Hz

2 Input 8 Output Audio Signal Distributor

D6571

120dB ; ≤0.003% @1kHz,+4dBu

8 / 12 / 16 Channel Digital Audio Processor with Echo Suppressor and Dante

D6642HD D6643HD D6644HD

120dB ; ≤0.002% @1kHz, +4dBu

16 Input/Output Digital Audio Processor with DSP

D6642H D6643H D6644H

-90dBV(@0dB,1kHz,A-wt)/Line

Digital Audio Processor with DSP

D6675

118dB ; ≤0.005% (+4dBu 1kHz)

16×16 Analog Professional Audio Processor

D6696

118dB ; ≥111dB (20–20KHz)

12×12 Analog Professional Audio Processor

D6692

118dB ; ≤0.005% (+4dBu 1kHz)

8×8 Analog Professional Audio Processor

D6688

118dB ; ≤0.005% (+4dBu 1kHz)

4×8 Analog Professional Audio Processor

D6648

Choose Your Audio Applications

Latest News & Case Studies

Get ready to provide the latest news about DSPPA and the related information about the audio and video industry for you.

NEWS

AUXDIO | New Website Now Live – Redefining Immersive Entertainment Audio

Abstract: AUXDIO, the entertainment audio brand under DSPPA Group, has officially launched its new website, providing customers and partners worldwide with an enhanced digital platform to explore its products, solutions, and brand updates.

August 19, 2026
NEWS

DSPPA | 38 Years of Excellence, A Legacy of Dedication

Abstract: Cheers to 38 Years of Excellence, DSPPA!

August 13, 2026
CASE

DSPPA | Digital Audio Matrix for Parking Lot, Sea Breeze Resort, Azerbaijan

DSPPA expertly completed the implementation of a cutting-edge audio matrix system for the parking area of Azerbaijan's renowned Sea Breeze Resort, ensuring high-quality sound performance tailored to the venue's needs.

Azerbaijan
CASE

DSPPA | Professional Sound System for Vision for Africa High School, Uganda

DSPPA Professional Sound System has been successfully installed in the auditorium of Vision for Africa High School in Uganda, greatly enhancing audio quality for school events and offering a great auditory experience to its students and staff.

Uganda

Contact Us

This site is protected by DSPPA Audio, and also applied to web browsers' Privacy Policy and Terms of Service

Leave a Message Email Us

we will contact you within 24 hours.

Name*

Email*

Country*

Whatsapp/Phone*

Company

Buyer-Project
Buyer-Individual
Distributor/Channel Partner
Consultant/system Integrator
Reseller/Dealer
OEM/ODM
Technical Support
Warranty & Repair
  • {{item.name}}