configurable professional RIC platform with 4-channel fitting, 8 adjustable bands, 16 DSP channels, AFC 2.0 feedback control and optional FM and Auto Phone functions.
The L4-RIC-M-N is a 4 channel digital RIC hearing aid developed for hearing aid distributors, audiology clinics, hearing centers and professional hearing care organizations that need a compact fitting platform with clear configuration choices for different B2B projects.
Built on the ACOD2101 intelligent multi-core DSP, the model provides 4 independently adjustable compression and amplification channels, 8 independently adjustable bands and 16 DSP channels. Its core signal-processing architecture combines ERAC 1.0 Dual-Knee compression, AFC 2.0 feedback control, SIW technology and ENDR 1.0 noise reduction specified at up to 16 dB.
The product also includes four selectable programs, an Internal Sound Field Assessment, an Internal Audiometer and multiple device-management functions for professional fitting and follow-up workflows. FM Interface Compatibility and Auto Phone Function are available as optional configurations, allowing distributors and project buyers to select a feature combination that better matches market or account requirements.
Rather than positioning the model only by channel count, L4-RIC-M-N provides a compact RIC solution with a clearly defined standard specification and additional configuration flexibility for professional B2B programs.
One of the key commercial characteristics of L4-RIC-M-N is the separation between its standard technical platform and its optional functions.
The standard configuration is built around a 4 / 8 / 16 fitting structure: 4 independently adjustable channels, 8 adjustable bands and 16 DSP channels. This gives hearing care teams a straightforward framework for frequency-specific adjustment while keeping the overall fitting architecture easy to manage.
For distributors, the value of this structure extends beyond the core technical specifications. A buyer can evaluate the base fitting and processing platform first, then determine whether optional FM Interface Compatibility or Auto Phone Function is required for a particular market, customer group or project.
This configuration approach makes the model useful where different professional accounts may require different feature combinations while maintaining the same core product platform.
It also gives distributors a clearer way to manage quotations, samples and product specifications across different B2B opportunities.
L4-RIC-M-N uses ERAC 1.0 Context Analysis Based Intelligent Multi-Compression Technology with a Dual-Knee structure.
The compression system operates across the independently adjustable fitting channels and forms part of the device's digital amplification architecture.
Feedback management is provided by AFC 2.0 together with SIW technology. These functions create a defined feedback-control configuration that can be incorporated into professional fitting and technical comparison.
Environmental noise management is provided by ENDR 1.0 Environment Detection and Noise Reduction, specified at up to 16 dB.
For distributors and hearing care organizations, this provides a measurable noise-management specification that can be compared alongside fitting-channel, band and DSP specifications.
Together, ERAC 1.0, AFC 2.0, SIW and ENDR 1.0 form a compact signal-processing package that supports the model's professional fitting and configuration requirements.
L4-RIC-M-N provides 4 selectable programs and includes an Internal Sound Field Assessment and Internal Audiometer.
These functions support clinic and hearing-center workflows where device selection, fitting, adjustment and follow-up are managed by hearing care teams.
Additional operating functions include adjustable turn-on delay, occlusion effect management, low-battery notification, adjustable notification volume, volume control and memory after power-off.
The model uses Standard personalized data storage, and Nano Coating Technology is included.
The technical specification identifies the dual-microphone mode as All Direction. This microphone configuration can be considered together with the fitting architecture, feedback control and noise-management system when professional buyers compare product specifications.
The combination of fitting tools, integrated assessment functions and routine operating controls gives the model a practical role in professional hearing care workflows.
FM Interface Compatibility is optional for L4-RIC-M-N.
Auto Phone Function is also optional.
This distinction is particularly relevant for distributors, importers and project buyers because the optional functions can be selected according to specific customer or market requirements rather than being treated as part of the standard configuration.
A distributor can therefore confirm the base technical platform first and then determine whether one or both optional functions are required for the intended project.
This structure supports more flexible product planning across different channels and customer segments.
It also allows standard specifications and optional configurations to be separated clearly during quotation, sample evaluation and product selection.
For B2B procurement, this can make product configuration easier to communicate between manufacturers, distributors and professional customers.
L4-RIC-M-N is suitable for hearing aid distributors, audiology clinics, hearing centers, medical device importers and professional hearing care networks that need a compact RIC configuration with flexible feature selection.
Its commercial identity is based on the combination of 4 fitting channels, 8 adjustable bands, 16 DSP channels, AFC 2.0 feedback control and ENDR 1.0 noise reduction up to 16 dB.
The optional FM Interface and Auto Phone configurations add another dimension to product selection for markets or projects that require those functions.
This allows the model to occupy a distinct role in a multi-tier portfolio by combining a stable core platform with project-specific optional functions.
For sales teams, the product can be presented around technical transparency and configuration choices. For professional buyers, it provides a straightforward way to evaluate both the standard specification and any optional requirements before selecting a final configuration.
For distributors managing different professional accounts, L4-RIC-M-N can support a range of product-program requirements without changing its core fitting architecture.
Its compact 4-channel structure makes the base specification straightforward to understand, while the optional configuration model creates additional flexibility for different projects.
Hearing centers and audiology clinics can evaluate the fitting and signal-processing functions according to their technical requirements, while distributors can determine whether optional functions are relevant to the target market.
This makes L4-RIC-M-N particularly suitable for B2B programs where specification clarity, product differentiation and configuration flexibility are important procurement considerations.
| Specification | L4-RIC-M-N |
|---|---|
| Product Type | Digital RIC Hearing Aid |
| Channels | 4 |
| Adjustable Compression & Amplification Channels | 4 |
| Independent Adjustable Bands | 8 |
| DSP | ACOD2101 |
| DSP Channels | 16 |
| Compression Technology | ERAC 1.0, Dual-Knee |
| Feedback Management | AFC 2.0 |
| SIW Technology | SIW |
| Noise Reduction | ENDR 1.0, Max. 16 dB |
| Directional Dual-Microphone | All Direction |
| Selectable Programs | 4 |
| Internal Sound Field Assessment | Yes |
| Internal Audiometer | Yes |
| Adjustable Turn-on Delay | Yes |
| Occlusion Effect Management | Yes |
| Low Battery Notification | Yes |
| Adjustable Notification Volume | Yes |
| Volume Control | Yes |
| FM Interface Compatible | Optional |
| Auto Phone Function | Optional |
| Memory After Power-off | Yes |
| Personalized Data Storage | Standard |
| Nano Coating Technology | Included |
| Max. OSPL90 | 109 dB |
| HFA OSPL90 | 105 dB |
| Max. FOG50 | 45 dB |
| HFA FOG50 | 40 dB |
| Frequency Range | 200–5000 Hz |
| Battery Current | 2.3 mA |
| THD at 500 Hz | 3% |
| THD at 800 Hz | 3% |
| THD at 1600 Hz | 3% |
| Reference Test Gain – Target | 40 dB |
| Reference Test Gain – Measured | 40 dB |
| EQ | 25 dB |
It provides 4 independently adjustable compression and amplification channels, 8 adjustable bands and 16 DSP channels.
The model uses AFC 2.0 together with SIW technology.
ENDR 1.0 is specified at up to 16 dB.
The dual-microphone mode is listed as All Direction.
No. Both FM Interface Compatibility and Auto Phone Function are optional configurations for L4-RIC-M-N.
Looking for a configurable 4 channel digital RIC hearing aid for a professional product program?
Contact AcoSound for L4-RIC-M-N specifications, sample information and B2B project support.
configurable professional RIC platform with 4-channel fitting, 8 adjustable bands, 16 DSP channels, AFC 2.0 feedback control and optional FM and Auto Phone functions.
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