Parasound manual Parasound T 3 Design Overview, Component Selection

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PARASOUND T 3 DESIGN OVERVIEW

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Component Selection

Every component within the T 3 was carefully chosen for its sonic accuracy and reliability. A precision front- end assures excellent tuning characteristics. Premium filters are selected for outstanding selectivity and low distortion. Metal film resistors with 1% tolerance are incorporated throughout because of their precision and because their values don’t drift as they heat up during operation. Semiconductors were selected for superior performance in their specific roles in the circuit – specifically their low noise and distortion characteristics plus low DC offset. Gold has the best conductivity characteristics of any metal, so we use only high quality gold-plated input and output connectors. The circuit boards are made of FR4 glass epoxy for their long-term durability, while circuit layouts are optimized for RF frequencies. The chassis is made of heavy gauge steel to safely protect and shield the internal circuitry. This attention to detail when selecting electronic components makes the difference between a very good and an outstanding performing tuner.

The Power Supply

The T 3 power supply begins with a large toroidal power transformer that is chosen for its efficiency, low hum field, and high current rating. Encapsulating the power transformer in an epoxy filled steel canister assures ultra quiet performance. The audio signal path circuits and the switching/control circuits have independent closely regulated power supplies. This preserves the purity of the audio signal by preventing interference between the circuits. We also use a hand made detachable audiophile-grade AC cord to deliver the AC voltage to the power transformer.

To create the DC voltage, we use high-speed rectifier diodes and famous Nichicon electrolytic capacitors that are chosen for their low ESR and dielectric absorption. In addition, these filter capacitors are bypassed with polypropylene capacitors to help reduce ripple and to eliminate noise and interference that is generated in AC power lines from computers and other appliances in the home.

Circuit Path Topology

For superior sensitivity performance, we use a multi- gang front-end and discrete multi-stage RF circuits. The IF bandpass circuit employs hand-picked Murata filters to achieve high selectivity without increasing distortion. Only precision components are used in the detector circuit to accurately extract the analog audio signal. The audio signal path employs the newest Burr-Brown OPA 2134 FET integrated circuits for virtually all gain functions. They are laser-trimmed for precision and boast incredibly low noise and distortion specifications. We operate the OPA 2134s in pure class A for the linear performance and musical characteristics, without fatigue and harshness.

Functionality

The T 3 has a very elegant user interface with an easy- to-use remote control handset and simplified front panel control and status display. The remote provides convenient control over both the Parasound T 3 Tuner and the matching P 3 Preamplifier. The RS232, IR input and DC triggers facilitate system integration into any multi-zone, multi-room application to make the T 3 as functional as it is great-sounding.

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Contents Amplifier Congratulations and Thank You for Choosing Parasound Thank YOUParasound Staff Keeping Records for Future Reference Tuner Table of ContentsUnpacking and Placement Guidelines for the T What You’ll Need Before ConnectingTo Connect Turn off the power to the T FM Antenna Connection Antenna ConnectionsAM Antenna Connection Antenna ConnectionsConnecting AN Infrared Repeater System to Your T 3 Preamp or Controller Loop Output Jack RS232 Control AC Voltage Selection Switch AC Power ConnectionsReset Switch See Trouble Shooting Region Select SwitchOperating Your T Remote Control and Front Panel OperationTurning the T 3 On and Off Selecting Radio Stations on the TManual Tuning Selecting Stations Seek TuningSeek Tuning with the Remote Control Seek Tuning at the Front PanelSelecting Stations by Entering Frequency Manual Tuning at the Front PanelSelecting Preset Stations Preset StationsSaving Stations as Presets Browsing through Preset Stations from the Remote Control Saving Stations as Presets Auto MemorySelecting Preset Stations on the Front Panel Activating Auto MemoryRadio Data System RDS Stereo Mono Buttons and DisplayFront Panel and Remote Control Trouble Probable Cause Remedy Troubleshooting GuideIf All Else Fails -Call Us for Help Servicing Your TBalanced and Unbalanced Input Lines Technically SpeakingComponent Selection Parasound T 3 Design OverviewSignal to Noise Ratio 23 T 3 SpecificationsParasound Products, Inc Battery Street, San Francisco, CA

T 3 specifications

The Parasound T 3 is an advanced stereo tuner designed for true audio enthusiasts who seek high-quality performance and superior sound reproduction. This tuner represents Parasound's legacy in crafting reliable and high-performance audio equipment.

One of the standout features of the T 3 is its impeccable FM and AM reception capabilities. It utilizes a high-quality digital signal processor that significantly enhances sound clarity while minimizing noise and interference. This is especially beneficial for listeners in environments with fluctuating signal strengths, ensuring consistent audio quality.

The T 3 incorporates a sophisticated RF front end that includes a wide bandwidth FM section, enabling reception of both standard FM broadcasts and HD Radio, which delivers enhanced audio quality and numerous additional channels. With its advanced digital processing, the tuner automatically selects the best signal and filters out unwanted noise, resulting in a listening experience that is both rich and detailed.

A notable characteristic of the T 3 is its elegant and user-friendly design. The front panel features an easy-to-read display that indicates the station frequency, signal strength, and mode of operation. Additionally, it includes a multi-function dial for intuitive browsing through preset stations, allowing users to store up to 40 of their favorite channels for quick access.

For audiophiles, the Parasound T 3 supports a variety of output options, including standard analog outputs and digital outputs for those looking to integrate it with a modern audio system. This flexibility ensures compatibility with a wide range of audio components, making it an ideal addition to both traditional and contemporary setups.

Furthermore, the T 3 is engineered with high-end components that deliver minimal distortion and exceptional dynamic range. Its robust construction not only enhances durability but also prevents vibrations that can affect sound quality, thereby ensuring that performance remains uncompromised over time.

With its combination of cutting-edge technology, elegant design, and superior audio performance, the Parasound T 3 stands as a premier choice for anyone seeking a high-quality tuner that elevates their listening experience. Whether you're a casual listener or a dedicated audiophile, the T 3 promises to deliver an unparalleled sonic experience that showcases the best in radio broadcasting.
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