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Theory Audio Design Introduces Two High-Power 4-Channel IP Amplified Distribution Loudspeaker Controllers

Available to order now, the DLC-1000.4 and DLC-1500.4 are high-power and extremely flexible amplifier/controller solutions for residential and commercial distributed audio applications.

Dallas, TX – CEDIA Expo 2022 – September 29 – October 1, 2022 – Premium audio brand, Theory Audio Design, announces the DLC-1000.4 and DLC-1500.4 distribution loudspeaker controllers. Ideal for any residential or commercial installation where high-power distributed or surround audio is needed, each model offers 4-channels of intelligent power (up to 1500W per channel), a full DSP matrix, and is TCP/IP controlled through a wired connection, or directly via its on-board Wi-Fi access point.

Theory’s product ecosystem is unique in that offers many of the performance qualities of professional audio products – effortless dynamics, high efficiency, and rugged durability – but with the sonic delicacy, detail, and resolution of the best high-end high-fidelity products. Add Theory’s intelligent full-system design approach, with automatically tailored loudspeaker DSP, and you get startling performance at tremendous value.

The DLC-1000.4 and DLC-1500.4 are designed to be at the core of every high-output Theory distributed or surround audio system. With channel-pair power sharing of up to 1000W for the DLC-1000.4 or 1500W for the 1500.4, each DLC offers the flexibility to power any system size. Via their configurable outputs, the DLC models can power up to 16 Theory 16-ohm ceiling or pendant loudspeakers in Lo-Z mode, and the DLC-1500.4 can power up to 200 Theory architectural speakers in Hi-Z mode – or an optimal hybrid of both or in any quantity in between. This feature is especially beneficial in commercial spaces like bars, restaurants, retail environments, fitness centers, and spas where a combination of power, from quiet background to loud foreground audio, is required.

In hotels, education facilities, and corporate environments where there are multiple rooms of varying sizes, the DLC models offer complete flexibility in terms of available power. The S/PDIF master/slave functionality allows multiple DLCs to be used to cover all these needs and each loudspeaker controller only takes up two rack spaces. House of Worship requires reliable, high-quality amplification of voice, while also covering a large distribution area with many specialized speakers. The DLC Loudspeaker Controllers are up to the challenge, providing high-quality amplification and superior speech intelligibility throughout large spaces. For home cinema and surround sound systems, the DLCs are perfect to power large screen loudspeakers and subwoofers with up to 1000W (DLC-1000.4) and 1500W (DLC-1500.4) per channel into 4, 8, and 16-ohms, or 70V/100V hi-z systems.

“Because the DLC models can operate in both 8-ohm or 70V/100V modes, separately or in combination, and because all of our architectural loudspeakers have the same dual operation, systems of any size or complexity can easily be realized from these surprisingly powerful units”, said Paul Hales, president of Theory Audio Design. “And because our ceiling and pendant models can operate at 16-ohms, up to 16 speakers can be powered from a single DLC without the need to invoke the 70V transformers preserving ultimate sound quality.  With up to 1500W per channel, there is power on reserve to drive the largest subwoofers or screen loudspeakers in big, dedicated rooms.”

The DLC models are safety and EMC certified and compliant to ErP and EnergySTAR*. In early 2023, Dante-enabled versions of the DLC-1000.4, and DLC-1500.4 will offer even further installation flexibility and simplicity by adding Dante network audio and AES67 compatibility. A full list of DLC model specifications is available below.

CEDIA Expo attendees can see the DLC-1000.4 and DLC-1500.4 in Theory’s booth #24035.The DLC-1000.4 is available to order now for $3,500/each US MSRP. The DLC-1500.4 will begin shipping in December for $4,250 each MSRP. Interested dealers, reps, and international distributors are encouraged to reach out to Theory’s VP of Sales, Mark Goldman, at: [email protected] for more details.

For more information on Theory Audio Design, please visit

Theory DLC-1000.4 and DLC-1500.4 Specifications


4-Channel Amplified Distribution Loudspeaker Controller

  • 2U, 16lb. Chassis
  • IP Control
  • Integrated WiFi Access Point
  • Power Sharing
  • Lo-Z and Hi-Z (70V/100V) Operation


  • 4 x Balanced Analog Audio with selectable input sensitivity
  • 4 x RCA Unbalanced Analog Audio
  • 1 x S/PDIF Digital Audio


  • 4 x Speaker Outputs
  • S/PDIF Digital Audio Out

Trigger: +12VDC

Audio Operation: 48kHz/24-bit

On-Board DSP: 48kHz/32-bit

DSP Features:

  • Loudspeaker Processing for all Theory Models
  • Input Trim
  • Signal Routing
  • Gain
  • Delay
  • Polarity
  • Limiter

Frequency Response: 20Hz-20kHz, +/-0.25dB

Power Output (DLC-1000.4):

  • 1000W per channel @ 4, 8, 16-ohms and 70V/100V
  • 500W per channel @ 4, 8, 16-ohms all channels driven
  • 500W per channel @ 70V/100V all channels driven

Power Output (DLC-1500.4):

  • 1500W per channel @ 4, 8, 16-ohms and 70V/100V
  • 800W per channel @ 4, 8, 16-ohms all channels driven
  • 800W per channel @ 70V/100V all channels driven

Voltage Gain: Variable

Input Sensitivity: Variable (mic level to +14dBu)

Power Requirements: Standby: <1W

(1/8 power, all channels driven): 700W

Idle Noise(A-Wt): -78dBV

Signal to Noise Ratio: >106dB

Distortion (1kHz, 1dB below max output): <0.02%

AC Operation: 100V-240VAC, 50-60Hz

Finish: Matte Black

Dimensions: 3.5″ H x 19″ W x 12.6″ D

Weight: 16.5 lbs.

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