Featured Products

Model VA-8
Video/Audio Press Feed
1-in/8-out
(Mic/Line)

The Model VA-8 Video/Audio Press Feed is a high quality transformer coupled versatile unit for conferences, meetings, courtrooms, auditoriums, sports events, etc.
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Model VA-16/ML8
Video/Audio Press Feed
1-in/16-out
(Mic/Line Switches on 8-Outs)

The Model VA-16/ML8 Video/Audio Press Feed is a high quality versatile unit for conferences, meetings, courtrooms, auditoriums, sports events, etc.
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Model VA-32
Video/Audio Press Feed
1-in/32-out
(Mic/Line)

The Model VA-32 is a 1-in/32-out Video/Audio Press Feed System. It is used in Network Feeds from courtrooms, auditoriums, sports events and public gatherings.
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Model A-24/2ML
Audio Press Feed
2-in/24-out
(Mic/Line Switchable)

The Model A-24/2ML Audio Press Feed is a high quality transformer coupled versatile unit for conferences, meetings, courtrooms, auditoriums, sports events, etc.
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Model A-24P
Passive Audio Press Feed
1-in/24-out
(Mic/Line Switchable)

The Model A-24P Passive Audio Press Feed is a high quality passive unit (no power required) for conferences, meetings, courtrooms, auditoriums, sports events, etc.
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Model A-48
Audio Press Feed
1-in/48-out
(Mic/Line) Balanced

The Model A-48 Audio Press Feed is a high quality transformer coupled versatile unit for conferences, meetings, courtrooms, auditoriums, sports events, etc.
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Model SPK-4SUM/DB9
Line Level Mixer
4 Watt Amplifier
Balanced Input

The Model SPK-4SUM/DB9 Line-Level Mixer is a listening device and not an intercom. It needs to be hard-wired with a shielded cable.
All 4 inputs can be listened to and monitored simultaneously and each input has a separate volume control. Each desk in an office can have the same amplifier to monitor the same 4 sound inputs.
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Welcome to
Opamp Labs!

Manufacturer of Audio and Video products in the USA since 1965

In 1970 Bela Losmandy, Chief Engineer and founder of Opamp Labs, was awarded an Academy Award from the Motion Picture Academy for his concept and design of sound used in the Motion Picture industry.

Today, one of the best Audio/Video Distribution Press Feed boxes today is manufactured by Opamp Labs. It's sound quality is unsurpassed.

We have maintained our resonable pricing while keeping our quality outstanding!

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1033 North Sycamore Avenue
Los Angeles  •  California 90038
Ph. (323) 934-3566
Fax (323) 462-6490

Manufacturing




  • Portable Press Feed Boxes
  • Audio Video Distribution Feed
  • Press Bridge
  • Press Box
  • Multbox
  • Press Conference Audio Distribution units
  • Network Feed Box
  • Distribution Feed Box
  • Portable Audio Feed Box
  • A/V Dist. Press Feed Boxes
  • A/V Distribution Amps
  • Audio Amps
  • Line Amps
  • OPAMP Amps
  • Power Amps
  • Servo Amps
  • Summing Amps
  • RGBS Systems
  • Switchers
  • Chassis
  • Equalization
  • Noise Gate
  • Noise Reduction
  • Oscillators
  • Power Supplies
  • Transformers - Audio
  • More...