HK Audio ELEMENTS E115 SUB D - 15" Active Subwoofer with Network DSP, Plug'n'Play Cardioid Output and 900W for E835 Tops

HK Audio ELEMENTS E115 SUB D — 15" Active Subwoofer with Network DSP, Plug'n'Play Cardioid Output, and 900W for E835 Speakers

The HK Audio ELEMENTS E115 SUB D is the flagship powered subwoofer in the ELEMENTS family, designed to deliver more bass pressure and extension with extremely easy handling. It integrates a 1,500 W Class D amplifier dedicated to the 15" and a second 900 W amplifier to power up to three E835 modules (or six E435) via E-Connect or Speakon. Its 96 kHz DSP with network control allows you to adjust EQ, filters, delay, polarity, level and limiters, as well as select 4 presets (1×/2×/3× E835 and remote). The Cardioid Out output delivers a preconfigured signal for a Plug'n'Play cardioid module together with a LINEAR SUB 1500 A , without calculations or measurements. With a 44 Hz – X-Over (–10 dB) response , active cut at 160 Hz and a maximum SPL of 128 dB (half-space), the E115 SUB D is the natural expansion for ELEMENTS systems and can coexist on the same network with LINEAR 7 using the HK Audio DSP CONTROL software.

Main features

• Powerful and controlled bass: 15" subwoofer (3" voice coil) with 1,500 W and max SPL 128 dB (half-space @ 90 Hz).
• Power the tops: Additional 900W stage for up to 3× E835 / 6× E435 (E-Connect on top or Speakon Mid/High output).
• 96 kHz Network DSP: control via Ethernet RJ45 (In/Thru) , latency < 2.6 ms , 10-band parametric EQ , HPF/LPF, polarity, level, delay, limiter and mute.
• Presets and direct control: 1×, 2×, 3× E835 and Remote (user via software); Small Venue and Auto Sleep functions.
• Cardioid without complications: Cardioid Out (XLR) optimized for LINEAR SUB 1500 A in 1:1 configuration.
• Analog Connectivity: 1 × XLR/TRS combo input, 1 × XLR Thru , 1 × Speakon Mid/High Out , 1 × E-Connect .
• Touring construction: MDF enclosure, 2 × MultiGrip , 2mm foam-lined grille, black acrylic finish.
• ELEMENTS modular system: compatible with E835/E435 and accessories EP 1/EP 2 (spacers) and EF 45 (base).

Product benefits

• More pressure with less effort: fast staging with dedicated presets for 1/2/3 columns and “Small Venue” EQ.
• Instant cardioid setups: connect a LINEAR SUB 1500 A to the Cardioid Out and get rear rejection without calculations.
• One network, multiple families: unified remote management with HK Audio DSP CONTROL for ELEMENTS D and LINEAR 7 .
• Less cabling: E-Connect combines mechanical and signal connection to the mid/high modules.

Use cases

• Modular FOH reinforcement with 1–3 E835 columns per side for mobile events and live sound .
• Installations with centralized network control and user presets.
• Bass-restricted events : 1:1 cardioid configuration with LINEAR SUB 1500 A.

Frequently Asked Questions

• Can I power the tops from the subwoofer? Yes. The E115 SUB D features a 900W power amplifier for up to 3x E835 (or 6x E435 ) via E-Connect or Speakon Mid/High Out .
• How do you set the cardioid? Connect a LINEAR SUB 1500 A to the Cardioid Out and adjust its controls as directed in the manual. The E115 SUB D's DSP automatically applies the alignment.
• Is it network-managed? Yes, via HK Audio DSP CONTROL (Windows/macOS) with Ethernet RJ45 In/Thru . It's network-compatible with LINEAR 7 .

Description for projects

ELEMENTS E115 SUB D active subwoofer; LF 1 × 15" (3" voice coil); power 1,500 W (sub) + 900 W (E835 tops); max. SPL 128 dB (semi-space @ 90 Hz); response 48 Hz – X-Over (±3 dB) / 44 Hz – X-Over (–10 dB) ; Active X-Over 160 Hz ; DSP 96 kHz , latency < 2.6 ms; presets 1×/2×/3× E835 and Remote ; functions: 10-band EQ, HPF/LPF, polarity, level, delay, limiter, mute; Cardioid Out (XLR) ; inputs/outputs: 1 × XLR/TRS combo In, 1 × XLR Thru, 1 × Speakon Mid/High Out, 1 × E-Connect; network: 2 × Ethercon RJ45 (In/Thru); power supply PowerCON NAC3 In (100–240 V) ; MDF housing with 2 × MultiGrip; dimensions 48.5 × 48.5 × 59.5 cm ; weight 29.6 kg ; compatible accessories: E835/E435, EP 1/EP 2, EF 45 , LINEAR SUB 1500 A .