What Sonifex does

Sonifex Ltd. is a privately held UK manufacturer of professional broadcast audio and video hardware, founded in 1969 and headquartered in Irthlingborough, Northamptonshire. The company designs, engineers, and assembles its products in-house, employing approximately 40 skilled professionals covering circuit design, multilayer PCB layout, 3D mechanical engineering, CNC machining, embedded software, assembly, and testing, supported by a proprietary ERP/MRP system. Its portfolio spans AoIP converters (Dante and RAVENNA/AES67), audio monitors, the Redbox range of more than 40 audio interfaces, the CM and AVN commentary and talkback lines, S0/S1/S2 mixing consoles, telephone hybrids (including the DHY-04V VoLTE variant), SDI embedders and de-embedders, IP streamers, logging systems, PTP grandmaster clocks, and networked GPIO control interfaces, serving radio, television, outside broadcast, theatre, and installed-sound customers.

The business model is B2B hardware sales executed through a global distributor network covering more than 75 countries, with dedicated regional experts providing local sales and aftercare support, supplemented by direct sales from the UK head office for enterprise accounts. Pricing is quote-based with multi-year contracts and is not publicly disclosed; an additional revenue stream comes from repairs and servicing. Sonifex's go-to-market relies heavily on tier-1 international trade shows (IBC, NAB, ISE, Broadcast Asia, KOBA, Inter BEE, PALM Expo) and direct sales contact via dedicated sales, technical support, and accounts email channels. A distribution agreement with Prodys extends the company's offering into IP audio codecs, and the 2025 launch of Sonifex DMC (Discover, Monitor & Control) software marks the company's first material move beyond standalone hardware into broadcast network management tooling.

Name

Sonifex

Legal name

Sonifex Ltd.

Website

https://sonifex.co.uk

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

51–100 employees

Short description

Sonifex is a UK-based, privately-held manufacturer founded in 1969 that designs and builds professional broadcast audio hardware — including AoIP converters, mixing consoles, commentator units, and monitors — sold to radio, television, and live-event customers in over 75 countries.

Ownership category

akta.pro rank

Product category

Professional Broadcast Audio Equipment

NAICS

Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing (334220), Audio and Video Equipment Manufacturing (334310)

SIC

Radio & Tv Broadcasting & Communications Equipment (3663), Communications Equipment, Nec (3669)

akta.pro primary industry

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

akta.pro secondary industry

Live Sound & Stage Equipment (PA Systems, Amplification, Monitoring) (MPAIAJAD)

Keywords

• Broadcast audio equipment
• Professional audio hardware
• Audio over IP
• Broadcast mixing consoles
• Telephone hybrids

Headquarters

HQ city

Irthlingborough

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Professional Audio Hardware Sales: Sonifex designs and manufactures high-quality professional audio hardware including mixing consoles, audio interfaces (Redbox range, AVN-DIO range), audio monitors (Reference Monitor range), commentary units, telephone hybrids, AoIP converters, talkback/intercom systems, signal management, clocks/synchronization, embedders/de-embedders, GPIO & control, IP streamers, logging products, amplifiers, passive interfaces, radio capture/sound cards, and signage (SignalLED). Products are sold as one-time capital purchases with no recurring revenue model mentioned.
2. Repairs & Servicing: Dedicated repair and servicing support for products, including product registration and asset portal for distributors.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Sonifex designs, manufactures, and supplies professional broadcast audio hardware and software, including mixing consoles, AoIP converters, reference monitors, commentator units, telephone hybrids, talkback/intercom systems, embedders/de-embedders, IP streamers, logging systems, and signalling products. The product portfolio is organized into the Redbox range of audio interfaces, the CM Range of analogue commentary and talkback units, and the AVN Range of networked Dante/RAVENNA/AES67 AoIP products, serving installed sound, outside broadcast, commentary, live events, television and radio applications. All R&D, manufacturing, and assembly are conducted at the company's Northamptonshire, UK facility.

Product overview

Sonifex is a UK-based specialist developer and manufacturer of professional audio hardware, established in 1969. The company offers a comprehensive portfolio of broadcast audio solutions organized into distinct product families: the Redbox range (40+ audio interfaces including distribution amplifiers, converters, and silence detectors); the CM Range (analogue commentary units CM-CU1/CM-CU21, talkback control units CM-TB8, and telephone balance units); the AVN Range (networked AoIP products using RAVENNA/AES67 including portals, Dante commentary units, and Ember+-controlled GPIO interfaces); and standalone product categories including audio monitors with Dolby decoding, mixing consoles (S0/S1/S2 series), telephony hybrids (DHY-04 series including VoLTE), IP streamers, logging systems, SDI embedders/de-embedders, SignalLED studio signage, and GPIO/control interfaces. Products are designed for installed sound, outside broadcast, commentary, live events, television, and radio applications, with R&D and manufacturing conducted at the Northamptonshire facility.

Differentiator

Problem solved

Functional benefit

Products and services

• Redbox Range of Audio Interfaces A range of over 40 audio interface products launched since 1999 for systems integrators, including distribution amplifiers, analogue-to-digital/digital-to-analogue converters, silence detection units, source selectors, embedders/de-embedders, and matching amplifiers. Designed for broadcast signal management in radio and TV studio installations.
• CM Range - Commentator and Talkback Units Analogue commentator and talkback products including the CM-CU1 single commentator unit, CM-CU21 dual commentator unit, CM-TB8 8-channel talkback control unit, CM-TBU talkback unit, CM-TLL telephone line listen unit, and CM-BHA/CM-BH4W portable battery-powered belt packs. Designed for live broadcast commentary, sports broadcasting, and theatre/stage production communications.
• AVN Range - Networked AoIP Products Networked audio/video product line using Dante and RAVENNA/AES67 protocols, including AVN-CU1/AVN-CU2/AVN-CU4 Dante and RAVENNA commentator units, AVN-TB10AR/AVN-TB20AR/AVN-TB20AD talkback intercoms, AVN-DIO multi-channel Dante/RAVENNA interfaces (AVN-DIO12, DIO14, DIO15, DIO16, DIO19, DIO20), AVN-GPIO PTP-enabled GPIO interface, AVN-PXH12 2x12 channel mix monitor, and AVN portals. Designed for IP-based broadcast studio infrastructure.
• Reference Monitors (RM Series) 1U reference monitor range for broadcast-quality audio monitoring, including RM-2S4, RM-2S10, RM-4C8, RM-CA2, RM-CAD8, and RM-MC1L models with Dolby E decoding (RM-4C8-HDE1/E1X/E1B), 5-band parametric EQ, MADI support, and optional meters/controllers. Used in television and radio broadcast operations.
• S0, S1 and S2 Mixing Consoles Radio broadcast mixing consoles including the S2 hybrid analogue/digital mixer (replaced the Sovereign in 2004), S1 digital/analogue mixer (2010), and S0 mixer for novice and professional users (2012). Configurable with multiple input modules supporting microphone, line, telephone hybrid integration, and USB connectivity. Designed for community, educational, and professional radio stations.
• DHY-04 Telephone Hybrid Series Telephone hybrids and mix-minus generators that convert phone lines to broadcast-quality audio, cancelling echo and removing callers' own feed to prevent feedback. Includes DHY-04 and DHY-04G models, DHY-04HD single automatic HD voice and GSM hybrid, and DHY-04V VoLTE TBU hybrid with 4G capability for mobile call integration.
• AVN-DIO10-12G SDI Embedder/De-Embedder Dante embedder/de-embedder supporting the full range of SDI standards from SD-SDI through to 12G-SDI. Supports simultaneous embedding and de-embedding of up to 64 channels of audio between SDI and Dante AoIP networks.
• AVN-M8R Mic/Line to Dante Interface High-quality professional interface that distributes 8 inputs to the Dante AoIP network, providing a reliable insert point that converts Mic/Line inputs into AoIP streams for seamless integration with Dante/AES67 networks.
• SignalLED Studio Signage Illuminated RGB LED signs for recording studios, on-air, production, meeting rooms, and conference facilities. Includes control electronics and configurable RGB LEDs for onsite customization, available in two sizes (LD series and LDD series).

Quantifiable outcome

• Over 95% of British broadcast studios have used Sonifex equipment
• +3 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• ProdyscoreChannel Partner/ Reseller/ DistributorSonifex serves as the official UK distributor for Prodys products. This distribution partnership allows Sonifex to offer Prodys codec and transmission solutions alongside their own professional audio equipment, providing customers with complete broadcast solutions from a single source.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Allen & Heath: Allen & Heath manufactures professional mixing consoles for broadcast, live sound, and recording. It overlaps with Sonifex's mixing range and serves many of the same broadcast and installed-sound customers.
• Wheatstone Corporation: Wheatstone manufactures broadcast audio consoles, AoIP networking gear, and audio processing for radio stations. It competes directly with Sonifex's S0/S1/S2 mixers, AVN AoIP range, and reference monitor offerings.
• Genelec: Genelec manufactures professional studio monitors and audio monitoring systems used in broadcast. It overlaps with Sonifex's Reference Monitor range targeting the same audio quality-sensitive customers.
• Calrec Audio: Calrec is a UK-based manufacturer of broadcast audio mixing consoles and AoIP solutions for radio and television. It directly competes with Sonifex's mixing and networked AoIP product lines in the same broadcast customer base.
• Tascam: Tascam produces professional broadcast and recording audio hardware including interfaces, mixers, and recorders. It competes with Sonifex's Redbox audio interface and Net-Log logging product lines.
• Riedel Communications: Riedel manufactures intercom, talkback, and broadcast infrastructure systems — directly comparable to Sonifex's AVN talkback intercoms, commentary units, and outside broadcast equipment.
• Lawo: Lawo is a German manufacturer of broadcast audio and video infrastructure, including AoIP consoles, networking, and processing — overlapping heavily with Sonifex's AVN networked audio and reference monitor portfolio.
• DiGiCo: DiGiCo designs broadcast and live-sound digital mixing consoles, overlapping with Sonifex's commentary, outside broadcast, and mixing range targeting broadcast and live event customers.

Broad incumbents

• D&B Audiotechnik: D&B Audiotechnik is a broader professional audio manufacturer with PA and amplification products serving live events and broadcast — adjacent to Sonifex's amplifier and live sound offerings but primarily a different market segment.

Others

• Prodys: Prodys makes IP audio codecs and communication equipment distributed in the UK by Sonifex. They are not a direct competitor but a channel partner whose products Sonifex resells alongside its own portfolio.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/sonifexLtd
• Facebookfacebook.com/sonifexltd
• LinkedInlinkedin.com/company/sonifex

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Sonifex