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Kramer 123VXL 1x3 Differential Video Line Amplifier, Composite, Gain and EQ

B&H # KR123VXL Mfr # 123VXL

Availability Details

This item has been discontinued by the manufacturer and is no longer available.

The Comprehensive 123VXL is a 1x3 Differential Video Line Amplifier; this device accepts a composite video signal on a BNC connector and outputs three identical composite signals for distribution. This unit features a high bandwidth with gain and EQ compensation adjustments.

The gain control adjusts the level of the overall signal; the EQ control boosts the upper frequencies that are inherently most susceptible to loss.
High Bandwidth
At 427 MHz the bandwidth of this unit exceeds all standards for passing a composite video signal.
Compact Size
It is able to be mounted in small areas and it is compact enough to fit into a travel bag for portable applications.
AC or DC Operation
This unit comes with an AC power supply as standard equipment but, can also be powered from 12 VDC portable supplies for applications where AC power isn't easily accessed.
Differential Input
The step up feature of this model is the "differential input" offering noise elimination features.
Input Composite Video, 1 Vpp @ 75 ohms, Differential, on one BNC connector
Output Composite video x4, 1 Vpp @ 75 ohms, on three BNC connectors
Video Bandwidth 427 MHz
Video Signal-to-Noise Ratio 60.3 dB
Differential Phase 0.3°
Differential Gain 0.5%
Video Control Level: -1.3 to 6 dB
EQ: 0 to 10.2dB
Coupling AC
Dimensions (WxDxH) 4.7 x 2.95 x 0.98"
12 x 7.5 x 2.5cm
Weight 0.68 lbs
0.3 kg
Power Source 12 VDC @ 80 mA
On a Supplied AC Adapter
Kramer 123VXL 1x3 Differential Video Line Amplifier, Composite, Gain and EQ
  • AC Power Supply
  • Mounting Bracket
  • 3 Year Warranty

    by PowerReviews
    Kramer123VXL 1x3 Differential Video Line Amplifier

    (based on 1 review)

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    Reviewed by 1 customer

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    (1 of 1 customers found this review helpful)


    Fantastic Product

    By Andy

    from Sydney, Australia

    About Me Business Owner

    Verified Buyer


    • Easy To Use
    • Highly Compatible
    • Improves Performance
    • Professional Quality


      Best Uses

      • Complex Projects
      • Independent Films
      • In The Studio

      Comments about Kramer 123VXL 1x3 Differential Video Line Amplifier:

      Great use as a signal amplifier from video split taps on film cameras.

      I have used it with ARRI 435's as well as 16mm and HD Genesis Cameras (through a downconverter) and it's a great little device to turn 1 signal into 3.

      The gain control is also a great help on older video taps which are quite noisy and low quality.

      The only drawback i have found (and this may be my own issue, still investigating) is that when running from generator power instead of mains, i get slight black noise in the image from the unstable power source. This should be rectified on the next job i do when i run my video split rig through a UPS.

      Great value for money though and incredibly small and lightweight.

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