What is the sampling frequency?

The device operates at a 48 kHz sampling frequency.

What are the power requirements?

The power requirements are 90-240 V AC.

Professional 4 Input 8 Output Digital Audio Speaker Processor

Name: Professional 4 Input 8 Output Digital Audio Speaker Processor
Brand: Guangzhou strong sound electronic equipment Co., Ltd
SKU: 769875952

Guangdong, ChinaGuangzhou strong sound electronic equipment Co., Ltd

US$157.00-315.00

10 Pieces

Sample price:US$210.00/piece.Request sample

Product profile

Customization

Available

Activity

Passive

Operation Mode

Wire / Remote Control

Model NO.

4.8SP

Speaker Material

Metal

Application

Commercial

Certification

CE, RoHS

Frequency Response

20Hz-20kHz

Dynamic Range

>110

Maximum Delay

682ms on Inputs, 682ms on Outputs

Output Gain Adjustment

-40dB to +12dB

Parametric Equalizer

Each Input of 6 Band, Each Output of 4 Band

Crossover Filters

12,18,24, or 48dB Per Octave

Limiter Threshold

-20 to +20dbu

Maximum Output Level

+20dbu

Input Impedance

18 K Ohm

Output Impedance

100 Ohm

Power Requirements

90-240 V AC

Net Weight

4.05kg

Transport Package

Gift Box/Export Carton/Pallet

Specification

483× 44.4× 203mm

Trademark

LUCKY-TONE

Origin

China

HS Code

85184000

Key features

4 Input 8 Output Flexibility: 4 inputs allocable to any of the 8 outputs for versatile signal routing.

Advanced Filter Options: Supports Linkwitz-Riley, Bessel, and Butterworth filters with 12-48dB slopes.

Precise Parametric EQ: Each input has 6-band and each output has 4-band parametric equalizer.

Intuitive Limiter Control: Each output features an intuitive user interface for limiter threshold adjustment.

Programmable RS232 Control: Front panel RS232 port allows for programmable control and integration.

High-Resolution Audio: 48 kHz sampling frequency with >110dB dynamic range for clear sound.

Balanced XLR Interfaces: Balanced input and output XLR speaker interfaces for noise-free transmission.

PC Control Software: Includes PC control software for easy configuration and management.

Company profile

Guangzhou strong sound electronic equipment Co., Ltd

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 9 years CertifiedNearest Port: Guangzhou Port, Shenzhen PortAverage Response Time: ≤7.67h

AI-Powered supplier vetting

SummaryThe supplier is a China-based limited company established in 2016, with reported export activity, a valid import/export license, and primary products covering speakers, audio equipment, amplifiers, microphones, mixers, and Dante audio. Evidence indicates established service procedures, corrective and preventive action records, technical support, R&D documentation, 3D design services, customization capabilities, and recent new-product development. Production information includes four production lines, six to ten quality-control staff, stated lead times of within 15 workdays in off-peak periods and one month during peak periods, and export markets across Southeast Asia, the Middle East, Europe, and North America. FCC and RoHS certifications are reported, but the supplier lacks a factory environmental impact assessment report. No financial figures are included in this assessment. Customer-specific cases are not provided.

Supplier typeThe supplier is identified as a combined business entity and limited company, operating in Guangdong, China. It is reported as independent of a larger company group and has a valid import/export license, indicating a formally registered standalone trading and manufacturing entity based on the supplied information.

CertificationsThe supplier reports FCC and RoHS product certification capability, and an audit record conducted by BV is listed with a validity period from January 7, 2026 to January 6, 2027. However, the supplier explicitly lacks a factory environmental impact assessment report, so the certification evidence is positive but not comprehensive across environmental documentation.

After-Sales capabilityService capability is supported by written procedures, followed records, an approved supplier list, and a corrective and preventive action mechanism. Technology engineers are also responsible for technical support during production and after-sales service, providing explicit evidence of organized technical and after-sales support.

R&D capabilityThe supplier has R&D engineers responsible for new product development and maintains design input, output, review, verification, and validation documentation for audit. It also reports new products during the past year and provides 3D software design services, supporting a demonstrated innovation function.

Production capacityThe supplier reports four production lines, six to ten quality-control staff, 29 or 56 total employees in different slices, and stated order fulfillment times of within 15 workdays off-peak and one month during peak season. The differing employee counts create a data inconsistency, but the production-line, quality-control, and lead-time information provides explicit evidence of operating production capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its engineers confirm customer requirements and provide technical production support, while 3D software design services further support customized product development.