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dbx 228 User Manual

dbx 228
19 pages
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dbx 228 Specifications

General IconGeneral
Input ConnectorsXLR, 1/4" TRS
Output ConnectorsXLR, 1/4" TRS
Inputs2
Outputs2
Channels2
Maximum Output Level+21dBu
Frequency Range20 Hz to 20 kHz
Frequency Response20Hz to 20kHz, ±0.5dB
Signal to Noise Ratio> 90 dB
Input Impedance10 kΩ
Power Requirements15 Watts
Dimensions19" x 1.75"

Summary

Introduction to the dbx 228

Dynamic Range Expansion Explained

Explains the expander's function to restore compressed dynamic range.

Noise Reduction System

Details the dbx Type II noise reduction system for cleaner recordings.

Front Panel Overview

Front Panel Controls

Explains the function of each button and control on the front panel.

Rear Panel Connections

Rear Panel Jacks and Power

Details input/output jacks, power connection, and user safety warnings.

Installation Steps

Connecting to Sound System

Explains basic hookup in a tape monitor loop of a preamp.

Operation - Level Adjustments

Level Adjust Controls Overview

Explains rear panel controls for optimizing levels between sources.

Tape Record Level Adjust

Procedure to set output level for recording dbx encoded tapes.

Operation - Making Encoded Tapes

Operation - Tape Conversion

Operation - Playing Tapes and Discs

Playing dbx Type II Encoded Tapes

Steps to play back custom or pre-recorded dbx Type II tapes.

Playing dbx Discs

Instructions for playing dbx encoded phonograph records.

Operation - Expansion Details and Tips

Appendix - Specifications

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