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Jan 08, 2026 | 0 comments

Grounding Design for EL34 Single-Ended Tube Amplifiers

Published by IWISTAO In real-world DIY and small-scale production experience, nearly 80% of first power-up failures in EL34 single-ended (SE) tube amplifiers are caused by incorrect grounding implementation, not by...

Jan 07, 2026 | 0 comments

DIY Tube Amplifier Testing and Adjustment --A Practical E...

Published by IWISTAO Building a DIY tube amplifier is never just about getting sound. True performance, reliability, and tube longevity depend on systematic testing and precise adjustment. Improper setup may lead...

Jan 06, 2026 | 0 comments

Overshoot and Ringing in Tube Amplifiers--Causes, Detecti...

Published by IWISTAO Introduction In tube amplifiers, overshoot and ringing are common distortion or instability phenomena. They are typically caused by excessive feedback gain or deficiencies in output transformer design. These...

Jan 06, 2026 | 0 comments

Understanding Output Waveform Distortion in Tube Amplifiers

Published by IWISTAO Oscilloscope-Based Diagnosis and Adjustment Guide Introduction In tube (valve) amplifier design and debugging, the oscilloscope remains one of the most powerful diagnostic tools. By observing how a...

Jan 05, 2026 | 0 comments

A Comprehensive Guide to Audio Power Amplifier Design

Published by IWISTAO The audio power amplifier is the heart of any high-fidelity sound system. It performs the critical task of taking a low-power audio signal from a source like...

Jan 04, 2026 | 0 comments

The Enduring Legacy of the 1969 JLH Class A Amplifier

Published by IWISTAO Introduction: A Landmark in Hi-Fi History In the annals of high-fidelity audio, few designs have achieved the legendary status and enduring popularity of the 1969 Class A...

Jan 03, 2026 | 0 comments

Building a High-Performance FM Tuner: A Deep Dive into a ...

Published by IWISTAO Introduction In an age of streaming services and digital audio, there remains a unique and enduring magic to FM radio. The thrill of tuning across the dial,...

Dec 30, 2025 | 0 comments

The Ultimate Guide to Subwoofer Port Tuning for Deep, Pow...

Published by IWISTAO If you've ever been captivated by the deep, resonant bass in a high-end audio system and wondered how to replicate that immersive experience, the secret often...

Dec 25, 2025 | 0 comments

Designing a 40 Hz Transmission Line Loudspeaker

Published by IWISTAO An Engineering Case Study Using the Markaudio CHN-110 Transmission Line (TL) loudspeaker enclosures are widely regarded for their ability to extend low-frequency response while preserving transient accuracy...

Dec 24, 2025 | 0 comments

Unlocking Sonic Brilliance: Integrating Brass Horn Super ...

Elevate your audio experience with brass horn super tweeters. This comprehensive guide explores integration techniques, optimal placement, and tuning strategies to unlock crystal-clear high frequencies and transform your hi-fi system into a reference-grade listening environment.

Dec 21, 2025 | 0 comments

Clean Power, Pure Sound: Choosing the Right Rectifier and...

Published by IWISTAO Introduction: The Unsung Hero of High Fidelity In the pursuit of audio perfection, we often focus on the glamorous components: the DACs, the preamplifiers, and the output...

Dec 16, 2025 | 0 comments

Professional Guide to Sealed Loudspeaker Enclosure Design...

Published by IWISTAO After studying Part I, it should now be clear that the core issue in sealed enclosure design lies in the selection of enclosure air volume. Key Factors in...

Dec 15, 2025 | 0 comments

Taming Speaker Resonance: The Engineering Behind Crystal-...

Published by IWISTAO Ever listened to a pair of speakers and felt the bass was "muddy," or the vocals sounded "boxy"? You're not just hearing the music; you're hearing the...

Dec 14, 2025 | 0 comments

Beyond the Boom: The Ultimate Guide to Car Subwoofers

Published by IWISTAO Tired of flat, lifeless car audio? A subwoofer is the key to unlocking deep, rich, and immersive sound that you can feel. But choosing the right one...

Dec 12, 2025 | 0 comments

How to assemble super tweeter with 5 inch long brass horn

Published by IWISTAO This super tweeter is made of brass integrated stretching for musical instruments. The curve of horn is a natural and smooth parabola with a horn design and...

Dec 10, 2025 | 0 comments

Professional Guide to Sealed Loudspeaker Enclosure Design...

Published by IWISTAO This article introduces a data-and-chart-based method for designing sealed loudspeaker enclosures. It can be regarded as a convenient and effective approach to sealed box design. In a...

Dec 08, 2025 | 0 comments

Beyond the Sound: Why Wood Wax Oil is the Unsung Hero of ...

Published by IWISTAO In This Article The Speaker Cabinet: More Than Just a Box Enter Wood Wax Oil: A Finish That Breathes Penetration Over Film The Beauty of a Natural...

Dec 05, 2025 | 0 comments

Unwinding the Mystery: Why Inner Transformer Windings Hav...

Published by IWISTAO An Intriguing Observation for the Tube Amp Enthusiast For anyone who has delved into the world of building, repairing, or simply admiring tube amplifiers, the power transformer...