Aphex 2020 MkIII User Manual

Page 1Supplement to Model 2020 Fm Pro Manual
The MkIII Difference
Original 2020
The MkIII
The Technical Advances
• New Dual Band Optical Pre-Emphasis Limiter
• New “Ultra Clean” Non-Overshooting Lowpass Filters
• Dual Output Stereo Generator with RDS Interface
• Improved Baseband Spectral Purity
• Dual Mono & Stereo Capability
• Improved Remote Control
• Improved Leveler
• Improved Multiband Compression Algorithm
• Improved Interactive Split Band Limiter
• European ITU BS 412-9 Modulation Compliance
• Ultra Stable OCXO (Oven Controlled Crystal Oscillator) Option for Pilot Frequency Control
The Benefits
• Greater Clarity - More Sonic Detail
• More Flattering Voice Quality with no Distortion
• Greater Loudness Whenever Needed
• Fewer Undesirable Processing Artifacts
• Already Acclaimed Leveling Even More Effective and Transparent
• Economical - Handles Two Independent Mono Program Chains
• Ready for European broadcast standards
• Feeds Two Transmitters Simultaneously with Separate Level Controls
• RDS Injection Port Accepts Any Subcarrier Input
• Ready for use with *TFT “Reciter” Boosters (Using the OCXO Option)
* "Reciter" is a trademark of TFT, Inc., San Jose, CA.
The 2020 MkIII comprises significant new circuits and processing methods and numerous improvements to existing circuitry. Some new
controls were added and some old controls were deleted. In addition, the remote control program has been updated to reflect all of these
changes. You will find it easier than ever to get the sound that you want with a wider range of possibilities at hand.

Aphex 2020 MkIII Specifications

General

Brand	Aphex
Model	2020 MkIII
Category	Recording Equipment
Language	English

Summary

Aphex 2020 MkIII: Key Differences

Technical Advances Summary

Summarizes new circuits, processing methods, and circuitry improvements in the 2020 MkIII.

Key Benefits of the MkIII

Highlights advantages like enhanced clarity, improved voice quality, increased loudness, fewer artifacts, and cost-effectiveness.

Aphex 2020 MkIII Features and Options

Detailed Functions and Features

Outlines input processing, leveling, multiband compression, bass processing, and other operational features.

Aphex 2020 MkIII Innovations

Dual Mono vs. Stereo Operation

Explains the new dual mono/stereo modes, their benefits for economy, and selection methods.

Redesigned Leveler Operation

Details the Leveler's RMS detection, musicality, and independent control in Dual Mono mode.

Multiband Compressor Enhancements

Covers improvements like a flatter threshold, optimized dynamics, and adjustable crossover frequencies.

Limiter and Bass Processor Updates

Introduces the new Density control for peak processing and notes the removal of the Brightness control.

Aphex 2020 MkIII: Further Enhancements

HF Limiter and Low Pass Filter

Discusses the redesigned split-band HF Limiter and the Brilliance control for pre-emphasized frequencies.

Stereo Generator with RDS

Describes the PPDM stereo generator, dual outputs, and the RDS interface for signal injection.

Front Panel & Remote Control Software

Details front panel interface updates, display, navigation, and enhanced remote control software features.

Aphex 2020 MkIII Front Panel Layout

Front Panel Indicators and Controls

Explains indicators for compression, limiting, leveling, and controls like Spin Dial, navigation buttons, and display contrast.

Aphex 2020 MkIII Block Diagram

Pre-Emphasis Limiter Circuitry

Illustrates the Pre-Emphasis Limiter option's signal flow, components, and processing stages.