Portable Surface Loop Set (V22+ EU)

Portable surface loop set with Intusonic sound system and a set of dual wireless microphones

A complete, mobile sound system supporting hearing-impaired individuals, ready to work wherever a permanent installation is not feasible. The set combines a portable surface induction loop with the Contacta V22+ EU amplifier, professional Intusonic sound system, and a set of dual Relacart UR-270D wireless microphones. The speaker's voice reaches both the room's speakers and directly to hearing aids and T-coil implants. This ensures that all participants, including those with hearing loss, can hear clearly. This solution is ideal for AV integrators, event companies, universities, government offices, and cultural institutions organizing conferences, training sessions, and meetings in various rooms.

The loop is powered by the Contacta V22+ EU, the most commonly chosen model for large rooms. The amplifier features a Class D constant current output stage, automatic gain control (AGC) managed by DSP, and compensation for losses in metal. Adjustable signal delay allows synchronization of the loop sound with the sound from the speakers. The room is amplified by two Intusonic INTUCAB 6FP100T B two-way speakers, powered by a compact INTUFORCE 2SDL70 amplifier. Signals from microphones and other sources are mixed by a 7-channel INTUWORX PAA71+ mixer with a built-in LINKOUSTIC wireless receiver.

Functionality

• Simultaneous room amplification and sound transmission to hearing aids and T-coil implants
• Contacta V22+ EU loop amplifier with 22Vrms output at 12Arms
• Line, microphone, and 100V inputs in the loop amplifier
• Switchable automatic gain control (AGC) and 7-step compensation for losses in metal controlled by DSP
• Signal delay in the loop adjustable from 10 to 70ms in 1ms increments for synchronization with amplification
• Copper induction loop cable with a cross-section of 1.5mm² for surface installation
• Relacart wireless microphone set, available in versions: UR-270D MH, UR-270D MH/T or UR-270D MT
• INTUWORX PAA71+ mixer with 5 microphone/line inputs, switchable 12V phantom power, and 2-band equalizer
• Stereo input with source selection: balanced line, AUX 3.5mm, or LINKOUSTIC wireless receiver
• Additional microphone input with adjustable talkover function for announcements
• Mute and emergency connectors for integration with announcement and evacuation systems
• INTUFORCE 2SDL70 amplifier with power of 2x65W at 4Ω or 2x35W at 8Ω, in stereo or dual mono mode
• 100Hz high-pass filter and 2-band equalizer on each amplifier channel
• INTUCAB 6FP100T B speakers with a 6.5" woofer and 1-inch compression driver
• Speaker frequency response 75Hz-16.5kHz, sensitivity 92dB (1W/1m), maximum SPL 116.5dB
• Speaker dispersion angle 90°x60° with a rotatable horn
• Contacta induction loop signal receiver IL-RX20
• RACK9510 power strip for powering devices in a mobile configuration

Features

• Complete system: sound reinforcement, induction loop, and wireless microphones in one set
• Ready to use: devices mounted in a transport rack bag, protected during transportation and quick to deploy
• Compliance with EN 60118-4 and high-quality transmission for hearing aid users
• Stable magnetic field of the loop thanks to the constant-current output stage and efficiency up to 90%
• Operational safety: continuous self-test and protection against overheating, overvoltage, short circuits, and DC offset
• Easy loop amplifier operation thanks to the backlit LCD display and single control knob
• Wide and uniform room coverage thanks to the rotatable speaker horn
• Silent operation of the passively cooled INTUFORCE 2SDL70 amplifier
• Very high CMRR amplifier input, resistant to interference on long signal cable runs
• Wireless playback of music and announcements via the LINKOUSTIC receiver built into the mixer
• Speaker enclosures made of 12mm MDF with a black textured lacquer finish
• Loop amplifier power supply 100-240V AC with automatic voltage switching

Portable surface loop set with Intusonic sound system and a set of dual wireless microphones is a complete, mobile solution for conference, training, and multifunctional rooms. Quick deployment, good speech intelligibility, and accessibility for every listener are essential. One set replaces separate sound systems and separate hearing assistance systems. The configuration can be tailored to the specifics of the project, and our specialists will help choose the appropriate variant.