Atlas Sound TSD-MIX32RL – 3x2 Stereo Line Mixer with Remote Level

Product Overview

The Atlas Sound TSD-MIX32RL is a 3-input by 2-output stereo line mixer with remote master level control, designed for commercial AV installations where multiple stereo consumer or professional line sources need to be combined and fed to a stereo preamplifier or amplifier input. The unit provides both balanced and unbalanced stereo outputs with onboard bass and treble tone controls, making it a practical solution for restaurants, conference rooms, and schools that require simple multi-source stereo mixing. Long-tail applications include Atlas TSD 3x2 stereo mixer for conference rooms, remote-controllable stereo line mixer for commercial audio systems, and BGM mixer with EQ for distributed AV.

Product Description

The TSD-MIX32RL accepts three stereo unbalanced line-level inputs: one set of RCA jacks and two 3.5mm stereo inputs, covering the most common consumer source connector types used in commercial background music and AV presentation systems. All three input channels include front-panel signal indicator LEDs to confirm source activity. The balanced stereo outputs (300Ω impedance) drive long cable runs to remote amplifier locations without signal degradation, while the unbalanced outputs (150Ω) provide additional flexibility for short-run connections to local equipment. The onboard bass (100Hz, ±6dB) and treble (10kHz, ±6dB) controls allow basic tonal shaping at the source without requiring an external equalizer. A remote master level control port accepts an optional wall plate volume control for end-user adjustment of the overall mix level from a convenient location. Signal and peak indicator LEDs on the outputs provide monitoring of output signal presence and overload conditions. The TSD-MIX32RL operates from a 24VDC power supply sold separately, drawing only 60mA, and meets Energy Star efficiency standards. Multiple TSD devices can share a single supply, reducing rack infrastructure for multi-device systems. The unit's THD of 0.06% at 1kHz and 85dBV SNR ensure clean, quiet signal mixing appropriate for high-visibility commercial installations. A 36-month warranty applies.

Key Features

• Three Stereo Line Inputs — One RCA pair and two 3.5mm stereo inputs cover the most common commercial source connection types.
• Balanced Stereo Outputs (L+R) — 300Ω balanced output impedance drives long cable runs to remote amplifier inputs.
• Unbalanced Stereo Outputs (L+R) — 150Ω unbalanced outputs for short-run connections to local equipment.
• Remote Master Level Control — Accepts external wall plate volume control for end-user master level adjustment.
• Onboard Bass and Treble EQ — Bass at 100Hz ±6dB and Treble at 10kHz ±6dB for basic tone shaping without external EQ.
• Input Signal Indicator LEDs (x3) — One per input channel for real-time source activity monitoring.
• Output Peak and Signal LEDs — Separate output signal and clip indicators for output monitoring.
• 85dBV SNR — Low-noise design appropriate for music-forward commercial audio applications.
• Energy Star Compliant — 60mA at 24VDC; multiple TSD units can share one power supply.
• Separate Ground Connections — Individual ground terminals help eliminate ground-loop hum in multi-source installations.

Typical Applications

• Conference room
• Boardroom
• Training room
• Commercial meeting space
• Multi-purpose room
• House of worship
• All-hands room

Technical Specifications

Frequently Asked Questions

Q: Does the TSD-MIX32RL accept stereo sources only, or can it mix mono inputs?

A: All three inputs accept stereo signals. Mono sources connected to either the RCA or 3.5mm inputs will appear on one channel. The balanced and unbalanced outputs are stereo (L+R), so the full stereo image of all three mixed sources is preserved at the outputs.

Q: What power supply does the TSD-MIX32RL require?

A: The unit requires a 24VDC power supply sold separately. It draws 60mA (1.4W), so it is compatible with any AtlasIED TSD power supply. Multiple TSD units sharing one supply are supported; use the AtlasIED TSD Power Calculator to confirm total current requirements for your installation.

Q: How does the remote master level control work?

A: The TSD-MIX32RL includes a remote level control port that accepts an external wall plate volume control (such as an AtlasIED AAVC-10K equivalent). This allows end users to adjust the overall master level from a convenient location such as a front-of-room podium or wall panel.

Q: Are the bass and treble controls accessible from the front panel?

A: Yes. The bass (100Hz, ±6dB) and treble (10kHz, ±6dB) tone controls are located on the front panel. Like other TSD series devices, the knobs can be replaced with security covers to prevent unauthorized adjustment in public-facing installations.

Q: Can the TSD-MIX32RL drive both balanced and unbalanced amplifier inputs simultaneously?

A: Yes. The unit provides both balanced (300Ω) and unbalanced (150Ω) stereo output simultaneously, so it can drive a balanced-input main amplifier and an unbalanced-input secondary device at the same time without signal splitting.

Q: What connector types are used for the outputs?

A: The TSD-MIX32RL uses removable Phoenix-style connectors for the balanced and unbalanced outputs, consistent with other TSD Series devices. These simplify installation and field service.

Q: Is separate ground connection important for this mixer?

A: The TSD-MIX32RL includes separate ground connection terminals for each input and output, which is important in multi-source commercial installations to prevent ground loop hum. Proper grounding during installation is recommended to maintain the 85dBV signal-to-noise performance.