Extron MLS 100 A Stereo Audio Switcher
Extron MLS 100 A Stereo Audio Switcher is backordered and will ship as soon as it is back in stock.
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Extron MLS 100 A Stereo Audio Switcher
The Extron MLS 100 A is a compact four-input stereo audio switcher designed for professional AV installations requiring simple yet flexible audio source selection and mixing. It switches between four unbalanced stereo audio inputs while featuring an always-active auxiliary mono line level input (balanced or unbalanced) that mixes with any selected source, allowing seamless integration of microphones, ambient audio, or additional program material. Front panel buttons provide direct input selection and volume adjustment, with gain/attenuation control ensuring optimal signal levels for consistent output.
Housed in a durable 1U, quarter rack width metal enclosure, the switcher supports balanced or unbalanced stereo output and integrates effortlessly into control ecosystems. It offers multiple control methods including RS-232 serial, front panel operation, or compatibility with Extron TouchLink Control Systems and MediaLink Controllers for centralized management in classroom, boardroom, or presentation setups.
This switcher excels in environments needing reliable audio routing without complex video switching, such as podiums, lecterns, conference tables, or under-desk mounting. It pairs well with Extron MediaLink systems, projectors, amplifiers, and other AV components for enhanced presentation audio control.
Features Chart
| Feature | Benefit |
|---|---|
| Four unbalanced stereo audio inputs | Supports multiple stereo sources like laptops, media players, or CD players |
| Auxiliary mono mix input (balanced/unbalanced) | Enables mixing of microphones or background audio with selected program source |
| Audio input gain and attenuation | Adjusts levels for balanced, distortion-free output across sources |
| Balanced/unbalanced stereo output | Provides flexible connectivity to amplifiers or mixers |
| Front panel controls | Offers quick, intuitive manual selection and volume adjustment |
| RS-232 and MediaLink/TouchLink compatibility | Allows integration with automated control systems for remote operation |
| Compact quarter rack width enclosure | Fits easily in racks, under furniture, or on projector lifts |
| External Everlast power supply included | Ensures reliable, long-lasting power with energy-efficient design |
Specifications Table
| Specification | Details |
|---|---|
| Inputs | 4 unbalanced stereo (RCA or 3.5 mm); 1 auxiliary mono line level (balanced/unbalanced) |
| Outputs | 1 stereo (balanced/unbalanced) |
| Audio Gain | Adjustable; unbalanced output -6 dB, balanced 0 dB (unity) typical |
| Control Interfaces | Front panel buttons, RS-232, TouchLink, MediaLink Controller |
| Enclosure | Metal, 1U high, quarter rack width |
| Mounting Options | Rack, furniture, projector lift (optional brackets) |
| Power | External Extron Everlast power supply |
| Weight | 0.7 lbs (0.3 kg) |
| Frequency Response | Wide bandwidth for high-fidelity audio |
Compare Chart
| Aspect | Extron MLS 100 A | Kramer VS-4A | Atlona AT-AVS-4 (similar audio switcher) |
|---|---|---|---|
| Stereo Inputs | 4 unbalanced + 1 aux mono mix | 4 stereo | 4 stereo typical |
| Mixing Capability | Yes (aux mono with any input) | No mixing | Limited or none |
| Balanced Output Support | Yes | Varies | Often yes |
| Control Options | Front panel, RS-232, Extron controllers | Front panel, IR, RS-232 | Front panel, RS-232 |
| Form Factor | Quarter rack, compact | Half rack or desktop | Compact desktop |
| Gain/Attenuation Control | Yes | Basic level control | Varies |
| Integration Focus | Extron MediaLink/TouchLink | General purpose | Broad AV |
| Mounting Flexibility | Rack, furniture, projector | Rack/desktop | Desktop primarily |
FAQ
- What is the purpose of the auxiliary input? It accepts balanced or unbalanced mono line level signals and mixes continuously with any of the four selected stereo inputs for applications like adding microphone audio.
- How is volume controlled? Use front panel buttons for direct adjustment, or integrate with RS-232 or Extron controllers for remote level management.
- Can outputs be balanced or unbalanced? Yes, the switcher supports both, allowing flexible connection to professional amplifiers or consumer equipment.
- Is it suitable for rack mounting? Yes, its 1U quarter rack width design fits standard racks or optional shelves, with additional furniture or projector mounting options.
- What control systems work with it? It integrates natively with Extron TouchLink and MediaLink systems, plus standard RS-232 for third-party automation.
- How durable is the construction? The metal enclosure provides robust protection for professional installations, with reliable external power for consistent performance.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
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