HEDD Audio today introduces the TYPE 40 Main and TYPE 40 System, a reference monitoring platform for studios that need more output, low-frequency reach, and listening distance than nearfield monitors can provide, without the size and complexity of a traditional large-format main system. At its centre is the TYPE 40 Main, a compact, sealed three-way active monitor that provides full-range reference monitoring from a single cabinet, with no separate subwoofer required. One to three TYPE 40 XTD modules per channel can then add output, low-frequency headroom, and control over bass radiation without replacing the Main.

Compact cabinet, full monitoring: TYPE 40 Main

The TYPE 40 Main was developed for critical work across private mix rooms, mastering suites, post-production facilities, larger control rooms, and high-end listening spaces. Its sealed enclosure and high-excursion woofer extend response down to 20 Hz, allowing engineers to judge kick drums, bass instruments, and sub-bass content directly. Two 4-inch midrange drivers flank HEDD’s hand-built Air Motion Transformer in a symmetrical D’Appolito MTM arrangement, creating a focused acoustic centre, an even horizontal listening window, and controlled vertical dispersion. Dedicated Class D amplification provides output up to 123 dB SPL (peak), combining main-monitor headroom with precise imaging and resolution.

Built to grow without changing the reference

Every TYPE 40 System configuration retains the TYPE 40 Main as its reference monitor. XTD modules add low-frequency capability, playback level, and directional control without changing the fundamental monitoring character. Studios can install the capacity they need and expand later as the room, listening distance, or workload changes.

Each self-powered XTD contains a 10¾-inch high-excursion woofer and a 700 W Class D amplifier. Up to three modules can be installed beneath each Main while preserving a modest footprint. The XTD modules can be physically changed between Ported and Closed operation by installing a special port cover. In Frontfire Ported operation, three XTDs increase maximum SPL at 50 Hz by up to 15 dB compared with the Main alone. Ported mode prioritises efficiency and maximum output; Closed mode prioritises low-frequency control, definition, and resolution.

Directed dispersion for difficult low frequencies

Selectable Cardioid configurations reduce energy behind the TYPE 40 System, limiting reflections from the wall behind the monitors that can build up and blur the low end. This is particularly useful where room geometry, speaker placement, or acoustic treatment cannot fully control low-frequency behaviour.

Depending on the configuration, rearward radiation can be reduced by up to approximately 10 dB. A single Cardioid Closed XTD provides directional control from approximately 20 to 200 Hz, while larger systems can combine Frontfire modules for output with a Cardioid module for room control. This adds bass capability while controlling where that energy is directed.

Integrated timing and system control

The TYPE 40 Main and every connected XTD operate as one time-aligned monitoring system. In ZERO PHASE mode, HEDD Lineariser® corrects amplitude and phase response and aligns the system in time for a coherent impulse response. FLAT retains frequency-response correction without phase linearisation, while OFF provides the lowest possible latency for tracking and real-time performance.

HEDD CTRL manages every Main and XTD through one interface over Ethernet. Once the physical configuration and XTD operating modes are selected, it applies the correct LF Range and Extension Qty settings automatically. Engineers can manually correct the room from the listening position using 12-band parametric EQ at group and individual-speaker level, and save presets for different workflows, formats, clients, or listening positions. HEDD CTRL can manage a stereo pair or an immersive installation of up to 250 speakers.

One platform for different rooms and workflows

The TYPE 40 platform is intended for professional mixing, mastering, post-production, midfield monitoring, immersive production, theatrical installations, and high-end listening. A pair of TYPE 40 Mains provides a complete full-range reference where a traditional large-format system would be impractical; XTD modules extend it where greater output, low-frequency headroom, or cardioid bass control is required.

The TYPE 40 Main can be placed horizontally on stands, integrated into soffits, or installed with compatible mounting hardware. XTD modules expand vertically beneath it, allowing the system to scale around consoles, screens, room architecture, and immersive channel layouts.

The HEDD TYPE 40 Main and TYPE 40 XTD launch on 29th October 2026. For further information, visit www.hedd.audio.

Availability & Pricing

TYPE 40 Main and TYPE 40 XTD will be available from 29 October 2026 through selected HEDD partners worldwide.

TYPE 40 Main: $7,499 / €6,999 / £5,999 (per unit)

TYPE 40 XTD: $6,999 / €6,499 / £5,699 (per unit)

*€ and £ prices include VAT; $ prices exclude sales tax.

Complete TYPE 40 System configurations are available at bundled pricing. Please contact your local HEDD partner for details.