Class A HiFi Preamp Tone Control Board Components A3 Tone Bo

Detailed Information About The Product:

1. Unpretentious And Pure Quality; Using High-Quality for Original-Parts Not Only Guarantees Safety And Quality And Long Service Life But More Importantly It Is A Strong Guarantee That The Actual Performance Can Meet The Design Goals.
2. The Main Filter Capacitor Adopts Imported Audiophile-Grade Elna With A Capacity Of 3300uf*4 And Adopts 2a And Above Rectifier To Ensure A Strong And Continuous pow er Supply. The Resistor Is A Five-Ring Metal Resistor And The Main Circuit Uses A Five-Ring Metal Film Resistor With An Accuracy Of ±1% Ensuring A Good Signal-To-Noise Ratio Of The Whole Machine.
3. The Pcb Uses 1.6mm Thick Double-Sided Sheets 2.0 Oz Copper Thickness And Full Tin Spraying Process To Ensure Good Passing Performance Of Large And Small Currents. Top-Notch Pcb Quality. Using A Fully Enclosed Dust-Proof Potentiometer The Performance Is More Stable And More Durable Than Ordinary Potentiometers.
4. The Wiring Layout Of The Entire Circuit Board Is Quite Rigorous And Reasonable And The Overall Pcb Wiring Adopts A One-Point Grounding Method. The Work Is Stable And Reliable The Low Frequency Is Steady And pow erful The Signal-To-Noise Ratio Is Excellent And The Dynamic Range Is Wide
5. The Details Are Clear The Transient Response Is Excellent And It Can Play All Kinds Of Music With Ease And It Performs Very Well In A Home Playback Environment. This Board Has A Treble And Midrange Pass-Through Switch

Class A Parallel Regulated Regulated pow er Supply Has The Characteristics Of High Speed Low Noise And Low Internal Resistance. In Terms Of Noise Music Detail And Sense Of Extension It Is Unmatched By A Series Regulated pow er Supply. The Performance Of The Series-Connected Regulated pow er Supply For Dynamic Loads Is Not As Good As That Of Parallel Connection Because The Conduction Degree Of The Regulating Tube Is Very Low When The Series-Connected pow er Supply Is No-Load Which Is Similar To Class B. For Dynamic Loads The Constant Current Source Of The Parallel-Connected pow er Supply Must Be Accelerated From 0 To 60ma. A Large Current Is Sent To The Adjustment Tube. It Works In Class A. For Dynamic Loads It Only Needs To Accelerate From 30ma To 90ma. The Response Speeds Of The Two Are Definitely Different.
pow er Supply Voltage: AC12V-0-AC12V Filter Capacitor Is 16v Withstand Voltage
Potentiometer From Left To Right: Treble Adjustment - Midrange Adjustment - Bass Adjustment - Master Volume Control
Note:Different Batches May Have Differences In Product Appearance Color And Printed Characters Which Will Not Affect The Use
Colour:as described
Material:PCB
Size:About 140x66mm

Package Contents:
1 * Tone Board Module
1 Set * Screw Mounting Accessor

Only the above package content other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
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