Digi-Loop 104 Small Room Hearing Loop Amplifier

DL104

The Digi-Loop 104 Induction Loop Amplifier, designed for small spaces up to 919ft² (250 m²), extends hearing support to those with t-coil-enabled hearing aids and cochlear implants. It offers venues all the essential hearing amplifier functionalities of premium brands at an affordable price, making it accessible to small and mid-sized organizations. This single-channel, Class D perimeter hearing loop amplifier features high-efficiency technology for lower power consumption and natural cooling. Its compact design ensures it remains discreet in the venue, whether freestanding, wall-mounted, or rack-mounting.  

 

This single-channel, Class D perimeter hearing loop amplifier features high-efficiency technology for lower power consumption and natural cooling. Its compact design ensures it remains discreet in the venue, whether freestanding, wall-mounted, or rack-mounting.  Designed with installers and venues in mind, it features easy input and signal adjustment, loop monitoring and fault detection, and a simple front panel. Automatic Gain Control (AGC) guarantees outstanding sound quality without clipping or distortion.

Digi-Loop products are feature-rich without the high price tag, making them ideal solutions for venues that want to make audio accessible to visitors without sacrificing quality. Why pay for product functionality your venue doesn’t need? The Digi-Loop 104 delivers high-quality sound in an easy-to-use and discreet form factor at a competitive price.   

Want to learn more about hearing loops as an assistive listening system? Visit our Hearing Loops page to learn more about what is a hearing loop, different types of loops, how to implement a successful induction loop system, and more!

System Includes

  • DL104 amplifier
  • Black Line Cord
  • Set of 3 stickers with the T-coil icon

Features

  • Loop coverage of up to 919ft² (250 m²) – max width : 32ft (10m)
  • Advanced protection circuit helps maintain safe operating temperatures
  • Inputs for microphone input or line input, balanced or unbalanced
  • Meets CE certifications
  • LED indicators
  • Peak output current: 8A
  • Standby mode
  • Active protection against short and open circuits, clipping, and thermal (overheating).
  • Meets ADA/ADAAG Guidelines
  • 2-year Warranty
  • Input level controls
  • Loop output level control
  • Single unit or dual units mountable in standard 19” rack (with optional rack mount kit)

How It Works

1. A sound source — such as a voice, TV, or other audio system — is captured using a microphone or via a line-out connection.
2. The sound signal is connected to the DL104 hearing loop amplifier. The amplifier generates a current to pass the signal to a hearing loop, usually made of copper tape or wire.
3. The copper wire hearing loop (usually) surrounds the area where the listening audience is located and produces a magnetic field.
4. The magnetic field is picked up by the T-coil inside the hearing aid, cochlear implant, or hearing loop receiver of an audience member with difficulty hearing. The hearing aid customizes sound to individual needs, delivering full-spectrum frequencies directly to the ear canal without background noise for improved intelligibility.

DL104

Dimensions:

1.7” x 7.8” x 8.5” (42mm x 200mm x 215mm)

Weight:

3.3 lbs (1.5 kg)

Operating Temperature Range

32 to 113 degrees F (0 to 45 degrees C)

Storage Temperature

-40 to 185 degrees F ( -40 to 85 degrees C)

Power Supply Type

Integrated

Power Supply Voltage

115/230 V (automatic) 50/60 Hz

Power Output

200VA

Power Consumption

6W

Nominal power consumption at 1 Ohm

50W

Maximum Input Power

500VA

Power consumption at rest with connected loop

14W at 230V AC, 2 loop of 1 Ohm connected, at ambient temperature after 30 minutes of stabilization.

Mic Input (100V)

(1x) 3-position terminal block (Phoenix)

Microphone (100V) (1x) 3-position terminal block (Phoenix)
Power Supply 12V 2mA
Input Sensitivity -50dB micro, +40dB 100V, -10dB line
Loop Integrity Indication Loop Impedance 0.5 – 3.0 Ohm
Loop Output (1x) 2-position terminal block (Phoenix)
Output Voltage 34 Vrms (48 Vpk)
Output Peak Current 8A
Output RMS Current 4 Arms
Bandwidth 80 Hz to 9.5 kHz
LED Display LED “Protect” light
Checking (synthesis fault) DC current too high – Open loop – Thermal protection
Cooling Natural cooling
IP Rating IP 20
Frequency Response 40 Hz to 9.0 kHz

Warranty

2 Years

No Firmware Found

Small Meeting Room

Waiting Room

Small Classroom

Classroom Isometric Illustration for Digi-Loop 104

Design & Consultant Specs