555-8485 MCM, 555-8485 Datasheet - Page 2

• Manufacturer Part Number: 555-8485
• Description: Balanced/Unbalanced Line Level Converter
• Manufacturer: MCM

Specifications of 555-8485

• Convert To: Ch 1
• Convert From: Ch 1 L/R Bal. XLR (F), Ch 2 L/R Unbal. RCA (F)

Be sure that power to all equipment is switched off prior to connection of this device.
Note: The advantage of higher gain, balanced audio signals with pro-sound gear is its
immunity to induced noise and interference. Since the signal is balanced on two lines, any
interference that is introduced on the line is cancelled out at the destination. Additionally, the
higher signal level insures better signal-to-noise ratio on the line.
Therefore, if this device is to be used on consumer equipment that is a great distance from the
amplifier or mixer input, it should be located as close to the source as possible. That will allow
the distance of signal to be sent at the higher, balanced level.
Specifications
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When connecting consumer source gear, to pro-sound amplifiers or mixer inputs, use
Channel 1.
When connecting line level outputs of pro-sound gear to consumer electronics inputs,
use Channel 2.
Both channels include a level control with a center-position detent. This detent
provides typical gain or attenuation for industry standard levels. To start, leave the
level controls in this center position.
Power on all equipment (amplifier last) and use as normal. Adjustment may be made
to the line level signal if desired to match other connected equipment.
Maximum Gain
Max output: +18dB balanced, +12dB unbalanced
Max input: +22dB balanced and unbalanced
Frequency response: 20Hz~20KHz
S/N ratio: >90dB
Noise Floor:
THD: <0.003%
Power requirements: 12VDC, AC adaptor included
Dimensions: 1-3/4" (H) x 5-5/8" (W) x 3-5/8" (D)
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Balanced-to-unbalanced:
Unbalanced-to-balanced:
-88dB
Operation
-8dB
+20dB
www.mcmelectronics.com
650 Congress Park Drive
Centerville, Ohio 45459
MCM Custom Audio
MCM Electronics