What is the signal delay in different modes?

The signal delay is 7 ms in Music Mode and 11 ms in Speech Mode.

What certifications does the AFS246 hold?

The product is certified with CE, RoHS, and CCC standards, ensuring compliance with international safety and environmental regulations.

Can this processor be used in KTV or conference rooms?

Yes, it is designed for conference systems, lecture halls, KTV rooms, and sound reinforcement environments using multiple microphones.

Afs246 Conference Feedback Suppressor 4 Mic Inputs DSP Processor with Music Mode

Name: Afs246 Conference Feedback Suppressor 4 Mic Inputs DSP Processor with Music Mode
Brand: Shandong Lightning Cloud Technology Engineering Co., Ltd.
SKU: 2157442112

Shandong, ChinaShandong Lightning Cloud Technology Engineering Co., Ltd.

US$151.93-258.29

1 set

Product specifications

customizable

Sample price:US$258.29/set.Request sample

Product profile

Customization

Available

Noise

>90 Db

Hi-Fi

Model NO.

AFS246

Activity

Active

Operation Mode

Button Control

Speaker System

None

Speaker Material

Metal

Application

Commercial, Home

Certification

CE, RoHS, CCC

Monitor

LCD Screen

THD

<0.1% @1 kHz

Processor Type

Automatic Feedback Suppressor

DSP Processor

Digital DSP Processor

Audio Inputs

4 Balanced Mic/Line Inputs

Audio Outputs

1 Balanced Output

Power

AC 220V ±10% / 50Hz

Phantom Power

48V (4 Channels)

Frequency Response

125 Hz - 15 kHz (Speech) 20 Hz - 15 kHz (Music)

Transport Package

Carton

Specification

480 × 220 × 44 mm

Origin

China

Key features

Automatic Feedback Suppression: Prevents acoustic feedback before it occurs using advanced echo cancellation algorithms.

4-Channel Balanced Inputs: Features 4 balanced mic/line inputs with switchable 48V phantom power for condenser mics.

Dual Operating Modes: Fast Mode for changing mic positions and Precision Mode for fixed installations like lecterns.

High System Gain: Provides up to 12 dB additional system gain before feedback occurs for clearer audio.

Ultra-Wide Frequency Response: Covers 125 Hz - 15 kHz (Speech) and 20 Hz - 15 kHz (Music) for natural sound quality.

Low Distortion Performance: Maintains THD <0.1% @1 kHz and Signal-to-Noise Ratio >90 dB for Hi-Fi output.

Built-in Auto Mixer: Optimizes microphone gain distribution automatically for four microphone inputs.

Global Certification: Certified with CE, RoHS, and CCC standards for safe and compliant international use.

Company profile

Importers and ExportersMulti-language PioneerIn-stock CapacityFast Delivery

Shandong Lightning Cloud Technology Engineering Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤4.14h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier with broad business activities spanning electronic products, software and hardware, display devices, intelligent robots, new-energy equipment, security systems, and related technical services. It offers extensive customization, including sample-, design-, full-, minor-, and flexible customization, and launched new products during the past year. Quality assurance is reported, but finished-product inspection is random, only one quality inspector is reported, and raw-material traceability is unavailable. The supplier has in-stock capability but no overseas warehouse or showroom. It lacks 3D software design and SDK availability. Financial information supplied shows zero operating revenue, cost, gross profit, and operating profit for the stated periods; no monetary figures are reproduced here. Corrective-action and complaint-handling procedures exist but lack written records. No customer cases or certifications are explicitly provided.

Supplier typeThe supplier is explicitly described as a professional technical supplier and its business scope covers electronic components, software and hardware, display devices, intelligent robots, new-energy equipment, security systems, and technical services. This supports classification as a diversified technology and equipment supplier rather than a narrowly specialized manufacturer.

Financial creditThe supplied financial-capacity record reports zero operating revenue, operating cost, gross profit, and operating profit for the stated periods. These figures provide explicit evidence of very limited reported operating activity, although the slices do not explain the accounting context or independently verify the data.

R&D capabilityThe supplier is identified as having professional technical R&D capability and launched new products during the past year. It also offers broad product customization, but does not provide 3D software design or an available SDK; the company description additionally presents a strategic manufacturing partner with automated production facilities and complete production lines.

Production capacityThe company description states that its display-solutions partner has automated production facilities and complete production lines, and the supplier reports in-stock capability. Nevertheless, outsourcing procedures and manufacturing contracts have unknown status, so the slices support production-related capability but do not fully establish the supplier’s own manufacturing controls.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is repeated across the R&D and design-capability records and is direct evidence of broad customization capability.

Product Q&A

Q:How does the AFS246 prevent acoustic feedback?

It uses advanced echo cancellation and reverberation suppression algorithms to detect and remove feedback components while preserving original sound quality, injecting an inaudible masking signal or shifting frequency by about 5 Hz.

Q:What are the input and output configurations?

The unit has 4 balanced mic/line inputs (or optional 6.35 mm unbalanced inputs) and 1 balanced output, with switchable 48V phantom power for all 4 channels.

Q:What is the difference between Fast Mode and Precision Mode?

Fast Mode is suitable for environments where microphone positions frequently change, such as discussion systems. Precision Mode is designed for fixed microphone installations like lecterns or conference tables.

Q:What is the frequency response range for speech and music?

The frequency response is 125 Hz - 15 kHz for Speech Mode and 20 Hz - 15 kHz for Music Mode, ensuring natural sound without metallic artifacts.

Q:Does the device support condenser microphones?

Yes, it provides 48V phantom power across all 4 channels, making it compatible with condenser microphones.