Digi-Loop Medium Area, Single Channel Hearing Loop System


The DL107 SYS Hearing (Induction) Loop System, designed for medium spaces, extends hearing support across a single channel those with T-coil-enabled hearing aids, cochlear implants and included hearing loop receivers. Network-control capability provides seamless, remote system set-up, operation, and monitoring via laptop or tablet.

This amplifier is well-suited for areas such as waiting rooms and small meeting rooms.


The DL107 SYS hearing loop system maximizes modern amplifier technology. Its network-control capability provides seamless, remote system set-up, operation, and monitoring of the induction loop system via a laptop or tablet. DSP audio processing offers flexible, powerful software control of mixing, equalization, compression, and more. Powerful Class D pulse-width amplifier maximizes the efficiency of the unit.

This assistive listening system’s design offers a single 9.5 A rms loop output for perimeter loop or single array configuration. A 70-100 V input connects to a distributed speaker/paging system, ensuring announcements are heard by hearing aid users and visitors using the two included body-pack loop receivers with earbuds.

Meet IEC 60118-4 standards on system performance when integrated into a correctly designed and installed system. The DL107 SYS is also tested to IEC Specifications 62489-1 Benchmark Standards.

System Includes

  • (1) DL107 NET DSP – Induction Loop Amplifier
  • (2) PLR BP1 – Body-Pack Receivers with Batteries
  • (2) EAR 013 – Single Mini Earbuds
  • (1) BAT KT6 – Dual Drop-in Charger Kit (includes CHG 3502 Dual Drop-In Charger and (2) BAT 026-2 AA NiMH batteries)
  • (1) PLW F300 – 300 ft. Roll of Flat Power Loop Wire
  • (2) FWT 001 – Rolls of Flat Wire Warning Tape
  • (1) IDP 009 – ADA wall plaque (T-Coil)


Dimensions 1 RU Rackmount, 19” W x 1.75” H x 10” D. Chassis is 17” W.
Weight DL107: 9.2 lbs (4.2 kg)

DL207: 9.2 lbs (4.2 kg)

Color Case: Black, white and blue legends on front, white legends on back. LCD: Backlit Blue.
Fan cooling Variable Speed, Temperature Controlled
Power supply Internal, Universal 100-240 VAC, 50/60 Hz, 200 Watt. Fuse: 5 x 20 mm, 5 A, 250 V.

AC power plug is IEC 320-C14.

Heat output @ 120 VAC DL107 : Sleep State: 63 BTU/hr; Idle State: 71 BTU/hr; Driving one loop @ 9.5 A: 339 BTU/hr
DL207: Sleep State: 63 BTU/hr; Idle State: 84 BTU/hr; Driving two loops @ 9.5 A each: 638 BTU/hr
Ethernet (1x) RJ-45; 10-100 MBps.
USB (1x) standard-B. USB 1.1, 2.0 or 3.0 supported.
Environment 0-35° C ( 32-95° F), 0-90% relative humidity,
Coverage area* DL207 (dual output amplifier):

30,000 sq. ft. (2,786 sq. m.) (Perimeter Loops, 3:1 aspect ratio, both outputs driven)

18,000 sq. ft. (1,672 sq. m.) (Perimeter Loops, 1:1 aspect ratio, both outputs driven)

DL107 (single output amplifier):

15,000 sq. ft. (1,393 sq. m.) (Perimeter Loop, 3:1 aspect ratio)

9,000sq. ft. (836 sq. m.) (Perimeter Loop, 1:1 aspect ratio)

Dante input On “D” models only. (1x) RJ-45;100 Mbps. Minimum latency: 2 ms. Audio sample rates supported: 44.1, 48 kHz. Resolution: 24 bits.
Line inputs (1x) 3-position terminal block, 10 kΩ input impedance. Configurable/accepts -10 dBV, -4 dBu, +4 dBu, +8 dBu, balanced or unbalanced. Level adjustable 0 to -96 dB.
Mic/Line inputs (1x) XLR 3-pin jack. Input impedance: 1.5 kΩ Mic, 10 kΩ Line. Configurable/Accepts: Mic, Line -10 dBV, Line +4 dBu, or Line +8 dBu, balanced or unbalanced. Phantom supply (24V).
70-100 V input (1x) 2-position terminal block; high/speaker-level input (accepts 25 V, 70 V or 100 V) from distributed audio/paging systems.
Line outputs (1x) 3-position terminal block; loop-through of Mic/Line Input 1 [&] Line Input 2, +4 dBu, Balanced or Unbalanced. The line outputs mirror the audio of the loop output.
Loop output(s) (1x) 2-position terminal block per output
Audio output delay Adjustable from 0 to 165 msec
Headphone output (1x) 1/4” stereo headphone jack, on front of unit. Monitored input or output selectable in menu.
Loop fault relay (1x) 3-position terminal block providing NC, NO and Common. Contact rating: 2.0 A @ 30 VDC.
Loop output drive voltage 16.1 Vrms (22.8 Vpk) continuous
Rated loop output current* 9.5 Arms (13.4 Apk) per output
Loop resistance range 0.5 Ω to 3.0 Ω (DC)
Rated load* 0.5 Ω DC with 135 µH inductance
Frequency response 45 Hz to 9.0 kHz ± 2 dB (1 kHz ref.)
Rated loop THD* [lt]1 % at rated output current (1 kHz sine wave).
Front controls Front LCD display menu access/adjustment via control button/dial.
Adjustable settings Input mixing, parametric equalization, compression, metal loss compensation, high and low-pass filters, AGC and audio delay, output levels. See User Manual for adjustment range(s).
Internal calibration tools Test tone generator with pink noise, loop current adjustment/matching. See User Manual for details.
Other features Save/load configuration, loop test, priority input selection with adjustable threshold, loop fault relay, open/short and thermal protection. See User Manual for details.
Network control [&] firmware Function control and calibration by DigiLoop PC App via ethernet (RJ-45). PC App requires Windows 7 or higher.

Firmware updates through USB only.

Warranty 2 years
Approvals CE, UL, ULC, FCC, Industry Canada, RoHS, WEEE, CB scheme, RCM
Standards compliance This product is designed to meet the IEC-60118-4 standard when correctly designed, installed and commissioned.

Test Specifications provided to the IEC 62489-1 standard.



2 Years

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