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Objective Audio - Products

Custom Audio Design & Interfaces We Have Built

24 Channel Stereo Summing Circuit

Features:

• 50 Single-ended line-level inputs, 25 for left, 25 for right

• 2 Single-ended line-level outputs, 1 for left, 1 for right

• Active Combining Network topology, with second inverting stage

• DC servo circuits - No electrolytic capacitors in the audio path

• Summing is done on the pc board, resulting in minimal noise pickup from external sources

• Adjustable gain

• Ability to daisy chain for more inputs

• 1kHz THD+N at +20dBu < 0.0006%, unity gain, one input, unused inputs connected to ground

• THD+N less than 0.0014%, +4dBu, 20-20 kHz, unity gain, 20 kHz BW, one input, unused inputs connected to ground

• Frequency Response: -3dB > 200Khz

• Standard summing resistors are 12k-ohm, but can be ordered with any available value wanted

• Size: 4-inches x 2.6-inches

Applications:

• Summing circuit for new designs

• Replacement summing circuit for existing products

Requirements:

• +/- 12-Volts to +/- 19-Volts power supply

Installation should be done by a qualified technician

Price: $345 USD, including shipping within the Continental United States, excluding Alaska

3M M79 Meter Buffers

Although most studios only install Meter Buffers on their 2 Track machines, you will find that it's even more important to have buffers on your multitrack machines. With 2 track mixing machines, unless you master in-house, the meter buffers will only make a difference while listening in your environment, since your tape will be sent out for mastering. However, unless you have meter buffers in your multitrack, your multitrack meters are causing distortion in your mixes, when bouncing tracks and when combining tracks - always.

Features:

• Reduce machine output distortion caused by meters by up to .14%

• Adjust meter levels accurately

Applications:

• 2 or 4 Track Machines - requires 1 board 1/2 filled

• 8 Track Machines - requires 1 board full

• 16 Track Machines - requires 2 boards

• 24 Track Machines - requires 3 boards

Installation:

• Easily installs - can be done by almost anyone

• Requires no soldering - plug in and use

• View the installation instructions HERE

Prices:

• 2 - 4 Track Machines = $150

• 8 Track Machines = $200

• 16 Track Machines = $375

• 24 Track Machines = $550

Payment method: PayPal

Replacement Sound & Vision Opto Sensor PC Board for Locator

Features:

• Opto Sensor PC Board

• Replacement sensor board for Sound & Vision locator

• Fits under the reversing idler of the 3M M79"

Installation should be done by a qualified technician

Price: $125 USD, including shipping within the Continental United States, excluding Alaska

Balanced Input Circuit

Features:

• Balanced input

• Utilizing THAT Corporation's 1200 Series InGenius Balanced Line Receiver IC

• Size: 1.625" x 1.25"

Applications:

• Line input circuit for new designs

• Conversion from balanced input circuit to single-ended output circuit

Requirements:

• +/- 12-Volts to +/- 19-Volts power supply

Installation should be done by a qualified technician

Price: $75 USD, including shipping within the Continental United States, excluding Alaska

Balanced Output Line Driver Circuit

Features:

• Single-ended input

• Utilizing THAT Corporation's 1646 Balanced Line Driver IC

• Size: 1.625" x 1.25"

Applications:

• Output circuit for new designs

• Conversion from single-ended circuit to balanced output circuit

• Post-fader/potentiometer circuits

Requirements:

• +/- 12-Volts to +/- 19-Volts power supply

Installation should be done by a qualified technician

Price: $75 USD, including shipping within the Continental United States, excluding Alaska

Interface Adaptor that allows you to use a standard PC ATX power supply to replace the digital switching power supply in a Tascam DM24 mixer

Installation should be done by a qualified technician

Download Installation Instructions HERE.

Recommended PC ATX power supply size: at least 350-watts

Price: $130 USD, including shipping within the Continental United States, excluding Alaska

Payment method: PayPal

Product Terms:

All Products are built to order. Please allow two weeks from the time your payment has cleared before shipping occurs. Often, the time is less than two weeks - it depends on our current parts inventory.
We have a 90-day warranty on all Products. The warranty period begins upon receipt of the Product. If the Product fails within 90-days of receipt, please ship back the Product and, after verifying failure, we will replace the product, charging only for shipping.

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