The Signet PDA7/DW dual loop, phase shifted induction loop amplifier is ideal for larger installations, especially where large amounts of metal are present. With an output current of 2 x 5 Amps, the wall mounted PDA7DW is suitable for rooms up to 500m².

To ensure uniformity of the magnetic field, a phased array system produces two AFILS signals 90° out of phase with each other. These signals are connected to two identical hearing loops laid in a special overlapping pattern. The resultant magnetic field is evenly spread within the covered area but falls off quickly outside the loop. A phased array system eliminates 'dead spots' often found with a perimeter loop design and also prevents 'overspill' to adjacent rooms.

Three versions of this freestanding amp are available;

• PDA5/DW - 2 x 3.25 Amps, up to 200m²
• PDA7/DW - 2 x 5 Amps, up to 500m²
• PDA11/DW - 2 x 7.5 Amps, up to 1000m²

Please note: The smallest practical room width for a phased array loop is 5m.

The intuitive LED interface allows simple set-up of input levels, output current, phantom power and metal compensation settings and the display gives a clear indication of operation or fault status.

• Compact and rugged construction
• Intuitive LED display for easy set up
• 2 x XLR mic / line inputs
• Outreach connector allows up to 10 utility plates to be added
• Metal compensation for buildings with high metal content 
• Anti-tamper lock function
• Class D output stage for maximum efficiency & high output
• Short circuit protection against loop faults
• Dual action auto gain control compensates for poor mic technique
• Phantom power (12V) for electret microphones
• TOS Link input for TV connection

Also available in a freestanding desk mounted version - see PDA5/DD, PDA7/DD and PDA11/DD.