Specifications

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142 SIERRA ST., EL SEGUNDO, CA 90245 [phone] FAX [phone] www.ESE-WEB.com
AUDIO DISTRIBUTION AMPLIFIERS
The ES-217 & ES-218 (1x4) and the ES-245 & ES-246 (Quad 1x6) are Audio Distribution
Amplifiers that accept a balanced or unbalanced audio signal and produce exact
copies of that signal. The outputs are isolated and have recessed Gain controls. These
units are the “Audio Counterparts” of the Video DA’s (ES-207A and ES-247E respectively)
shown on page 6.
All inputs and outputs are accessible on terminal blocks for simple “permanent”
installations. Or, if option “XLR” is specified, all inputs and outputs are available on XLR
connectors for easy disconnect/reconnect.
Features:
• Terminal Block Inputs/Outputs (Optional XLR Connectors)
• Accepts Balanced or Unbalanced Audio
• Professional Audio Quality
• Ruggedized Enclosure
• Transformerless Audio
The ES-217 is an Audio DA with four independently adjustable (via the top-mounted Gain controls) outputs,
while the ES-218* has a single Gain control that adjusts all four outputs simultaneously. The transformerless
design accepts balanced or unbalanced audio and provides four exact copies. If unbalanced outputs are
desired, up to eight separate and isolated feeds can be made. An input attenuator is also provided which
is internally adjustable and may be used when using lower input levels. These rugged units are housed in
orange-painted, die-cast aluminum boxes.
The ES-245* is a quad 6-output Audio DA with 24 independently adjustable (via front-mounted Gain controls)
outputs, while the ES-246 has four Gain controls (one per input channel). The unit is a transformerless design
and each of the four channels accepts a balanced or unbalanced audio signal that provides six exact
copies. If unbalanced outputs are desired, up to twelve separate and isolated feeds can be made per
channel. An input termination switch (between 600Ω and 100KΩ) is also provided on the ES-246.
*(Not Shown)
Specifications
ES-217 ES-218 ES-245 ES-246
Input: Balanced or Un-balanced Balanced or Un-balanced Balanced or Un-balanced Balanced or Un-balanced
2KΩ - 25KΩ 100KΩ 2KΩ - 25KΩ 600Ω or 100KΩ, switchable
Response: 20 - 20,000 Hz, +/- 0.2dB 20 - 20,000 Hz, +/- 0.2dB 20 - 20,000 Hz, +/- 0.2dB 20 - 20,000 Hz, +/- 0.2dB
Gain: +18dB maximum +18dB maximum +20dB maximum +20dB maximum
Gain Controls: Four One 24 (one per output) Four (one per input)
Output: 600
Ω 600Ω 600Ω 600Ω
Output Level: +21dB maximum +26dB maximum +26dB maximum +23dB maximum
Connectors: Terminal Block Terminal Block Terminal Block Terminal Block
Enclosure: Die-cast Orange Box Die-cast Orange Box Rack Mount Rack Mount
Dimensions: 4.7” x 3.7” x 2.2” 4.7” x 3.7” x 2.2” 1.75” x 19” x 5” 1.75” x 19” x 5”
Electrical: 117 VAC, 50/60 Hz 117 VAC, 50/60 Hz 117 VAC, 50/60 Hz 117 VAC, 50/60 Hz
Power Required: 3 Watts 3 Watts 5 Watts 5 Watts
Options: J, UL, XLR J, UL, XLR J, MT, UL, XLR J, UL, XLR
ES-217
ES-217XLR
ES-246 & ES-245
Rear View
ES-246
ES-246/XLR & ES-245/XLR
Rear View