What Stewart Audio does

Stewart Audio is a California-based manufacturer of commercial audio amplifiers and AV control devices serving the professional installation market. The company's product portfolio centers on compact, plenum-rated amplifiers spanning both analog and networked digital domains — including the PowerCore DPA-220/DPA-220+ Dante-enabled PoE++ amplifiers, the CVA subcompact constant voltage line (CVA50-1, CVA40-1-CV-D), and the AV30MX-2 stereo mixer amplifier — supplemented by the PixiePlus single-gang modular display control devices and related SP Controls accessories. Underlying technology includes licensed Dante Embedded Platform integration, proprietary Signal Sense Power Technology (SSPT) for energy-efficient operation, integrated DSP for audio path processing, real-time speaker health monitoring, and UL 2043 plenum-rated form factors enabling above-ceiling deployment in commercial spaces.

The company operates a B2B business model anchored on hardware unit sales through a global network of sales representatives, distributors (including exclusive arrangements such as Techni+Contact Canada), and channel partners such as Sound Perspectives, with direct engagement for enterprise customers and a custom design services practice for OEM/ODM and branded exterior engagements. Revenue is complemented by recurring software products including SP Controls Display Drivers, DSP Control Center Software, and FLX-E/MC850 control and reporting applications. Pricing is not publicly disclosed and appears to follow standard B2B/enterprise distribution margins.

Stewart Audio addresses three principal customer segments: commercial AV integrators and dealers serving conference rooms, coffee shops, and Pro Audio installations; end users in corporate, education, and government sectors requiring reliable amplification for meeting rooms, classrooms, and public spaces; and resellers and integrators who resell Stewart Audio products to end customers. Named customer evidence includes ADI Workplace Acoustics, which cites the engineering team's role in reducing integration complexity and accelerating audio service delivery. The company emphasizes USA-based design and manufacturing, established distribution across North America with stated worldwide reach, and 25+ years of specialization in the commercial amplifier market.

Name

Stewart Audio

Legal name

Stewart Audio Incorporated

Website

https://stewartaudio.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

Stewart Audio is a California-based manufacturer of compact commercial audio amplifiers and AV control devices. It serves commercial AV integrators, corporate, education, and government markets globally through a network of sales representatives, distributors, and channel partners.

Ownership category

akta.pro rank

Product category

Commercial Audio Amplifiers

NAICS

Audio and Video Equipment Manufacturing (33431)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Pro Audio Equipment (Mics, Interfaces, Mixers, Studio Monitors) (MPAIAJAB)

akta.pro secondary industries

Home Theater Audio Systems (AV Receivers, Speaker Packages) (CRACANAH), Music Production Hardware (Synthesizers, Drum Machines, Samplers, MIDI Controllers) (MPAIAJAE)

Keywords

• Commercial audio amplifiers
• Networked audio amplifiers
• Dante PoE amplifiers
• AV control devices
• Plenum-rated amplifiers

Headquarters

HQ city

Sonora

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Hardware Sales: Sale of commercial amplifiers including standard, networked, PoE, PoE++, and Dante-enabled amplifiers in various form factors
2. Custom Design Services: Custom amplifier and bridge product designs, including branded exterior customization and networked audio design services
3. Software Products: Software including SP Controls Display Drivers, DSP Control Center Software, and control/reporting applications

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Stewart Audio designs and manufactures commercial audio amplifiers and AV control devices, with a focus on compact, plenum-rated form factors. The portfolio spans analog and Dante networked audio amplifiers (including PoE and PoE++ models), subcompact constant voltage amplifiers, mixer amplifiers, and the PixiePlus line of single-gang modular display control devices. Products are engineered and assembled in the USA, supported by custom design services and configuration software.

Product overview

Stewart Audio is a manufacturer of commercial audio amplifiers and control devices. The product portfolio centers on compact amplifiers including the PowerCore™ Dante™-enabled PoE series (DPA-220, DPA-220+), CVA subcompact constant voltage amplifiers (CVA50-1, CVA40-1-CV-D), and the AV30MX-2 stereo mixer amplifier. The company also offers the PixiePlus line of display control modules for AV systems, along with associated accessories and pre-configuration services. All products are designed and manufactured in the USA. The amplifiers span both analog and digital (Dante™ networked audio) domains, with a focus on compact form factors suitable for plenum-rated installations.

Differentiator

Problem solved

Functional benefit

Brands

• SP Controls: A related brand/logo displayed alongside Stewart Audio products, providing display control devices including the PixiePlus series of single-gang modular button display control devices.

Products and services

• PowerCore DPA-220+ Amplifier A 2-channel Dante-enabled PoE++ audio amplifier delivering 20W x 2 @ 4/8Ω or 40W bridged. Features integrated DSP (volume control, equalization, mixing, limiting, compression) and real-time speaker health monitoring reporting voltage and current. Designed for commercial AV integrators and enterprise AV installations.
• PowerCore DPA-220 Amplifier A 2-channel Dante-enabled PoE++ audio amplifier delivering 20W x 2 @ 4/8Ω or 40W bridged. Plenum-rated (UL 2043) for above-ceiling installation with a rugged, hand-held chassis and no external power supply required. Targets commercial AV installations.
• PixiePlus (PXE-DCM+) Display Control Device
• CVA50-1 Mono Subcompact Constant Voltage Amplifier A mono subcompact constant voltage amplifier delivering 50W @ 70V/100V. Features Class D design, convection cooling, signal detect trigger, music and fire alarm muting, and UL 2043 plenum rating. Designed for commercial audio installations.
• CVA40-1-CV-D Single-Channel PoE++ Dante Amplifier A single-channel PoE++ Dante amplifier delivering 40W x 1 @ 70V/100V. Uses a single category cable for both signal and power, plenum-rated packaging, and plug-and-play installation. For commercial AV systems using Dante networked audio.
• AV30MX-2 2-Channel Stereo Mixer Amplifier A 2-channel stereo mixer amplifier delivering 30W x 2 @ 4/8Ω in a subcompact 1/4 rack form factor. Plenum-rated for above-ceiling applications and equipped with Signal Sense Power Technology for Energy Star compliance. Used in commercial audio installations.
• PixiePlus Accessories Accessories for PixiePlus including PXE-PGM-TOOL programming wand, PXE-6V-US replacement power supply, PXE-EMIT-232/IR serial and IR emitter, PXE-MOTVOL-CTL motorized volume controls, and PXE-BIK50 basic install kit. Support PixiePlus installation and configuration.
• Custom Amplifier Design and Branding Services Design services working with world-class sound engineers to deliver custom amplifiers meeting unique requirements, including branded exterior customization and networked audio designs using Dante and AVB. For OEMs, integrators, and commercial customers with specialized needs.

Quantifiable outcome

• Energy savings through SSPT - amplifier only powered when signal present

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability3 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core.

• Techni+Contact Canada LtdcoreChannel Partner/ Reseller/ Distributor · 1 January 2021Techni+Contact Canada Ltd is a national distributor of audio-visual equipment for the commercial AV markets. They have over 40 years of experience building their reputation as an audio-visual importer and distributor. Stewart Audio signed an exclusive distribution agreement with Techni+Contact Canada to serve the Canadian market through their dealer and consultant networks.
• AudinatecoreTechnology or Integration · 1 January 2013Stewart Audio entered into a technology licensing agreement with Audinate to become one of the first licensees of Dante Ultimo. Under this agreement, Stewart Audio released Dante Ultimo options in its line of subcompact and half rack DSP powered amplifiers. The partnership positions Stewart Audio as a network-centric manufacturer of power amplifiers.
• Sound PerspectivescoreChannel Partner/ Reseller/ DistributorSound Perspectives is described as a Premier AV Solution Partner providing strategic sourcing and distribution of Stewart Audio amplifiers for Resellers and Integrators. They serve as a key channel partner for the North American market.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• AtlasIED: Manufacturer of commercial audio solutions including amplifiers, loudspeakers, and mass notification systems. Comparable to Stewart Audio in commercial install focus, distribution model, and amplifier-centric product set.
• Sonance: Architectural audio company making commercial amplifiers and integrated audio solutions for installed sound. Comparable to Stewart Audio in commercial install focus and amplifier-centric product strategy.
• Extron Electronics: Major commercial AV manufacturer offering amplifiers, DSP, and control systems, including Dante-enabled XTRA and XPA products. Overlaps with Stewart Audio's amplifier and PixiePlus control lines.
• LEA Professional: US-based manufacturer of professional Dante/AES67 networked amplifiers targeting the commercial AV install market. Most direct niche competitor to Stewart Audio's PowerCore and CVA Dante amplifier lines.
• Powersoft: Italian manufacturer of high-efficiency professional amplifiers with strong Dante/Armonía networking focus. Very close product overlap with Stewart Audio's networked PoE/Dante amplifier portfolio, especially in installed sound.

Broad incumbents

• Bose Professional: Division of Bose producing commercial amplifiers, DSP, and installed sound systems for corporate, education, and hospitality. Direct competition with Stewart Audio in commercial amplifier space, with much larger brand and channel.
• QSC, LLC: Large US-based pro-audio manufacturer offering a broad portfolio of commercial amplifiers, loudspeakers, and DSP processors (Q-SYS). Direct overlap with Stewart Audio in commercial install amplifiers but with much larger scale and a complete AV ecosystem.
• Crown Audio (Harman Professional): Iconic professional amplifier brand owned by Harman, offering networked (Dante/AVB) commercial amps including the DriveCore Install series. Closest large-scale overlap with Stewart Audio's core amplifier business.
• Biamp Systems: Major commercial AV manufacturer of amplifiers, DSP, and networked audio systems (Tesira, Community). Competes with Stewart Audio in networked commercial amplifier and DSP categories, with broader systems integration offerings.
• Lab.gruppen (Music Tribe): Established professional amplifier brand (now part of Music Tribe) with strong install and touring presence, including networked amplifier lines. Overlaps with Stewart Audio's commercial install amplifier offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/watch?v=q37HiNtzGsw
• Facebookfacebook.com/Stewartaudio
• LinkedInlinkedin.com/company/stewart-audio

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stewart Audio