In a world now flooded with tiny, cost-cutting transformers where iron, copper and therefore quality are all compromised, SB-LAB proudly goes against the tide. Our Mod. 4K5PP88 is the very opposite of mass industrial production: a huge audio transformer designed for push-pull applications with KT88 tubes in ultralinear configuration, featuring a primary impedance of 4500 ohm and a nominal power of 100 watts.

The photos speak for themselves: the visual comparison with KT88 tubes highlights the generous size of the core, the result of uncompromising design. No early saturation, no collapsing mids, no hollow lows. Just plenty of iron, controlled induction, low current density, full low-end response and no distortion even at high dynamic levels.

SB-LAB products are not made to be cheap. They are made to sound great, last over time, and bring out the full potential of your tubes. If for you audio is about substance and not marketing, then you are in the right place.

Main Features:

The Hashimoto KT88 UL Push-Pull transformer is characterized by:

• High Build Quality: Made with top-grade materials and robust construction, this transformer is designed to last and deliver reliable performance.
• Optimized Design: Specifically engineered for KT88 tubes, the transformer ensures perfect matching with your audio system, providing a clear, detailed and emotionally rich sound.
• Versatile Compatibility: With 4/6/8 ohm secondary outputs, the Hashimoto KT88 UL Push-Pull transformer adapts to a wide range of audio configurations, offering flexibility and convenience.

Bandwidth Graph:

This graph represents the frequency response of the Hashimoto KT88 UL Push-Pull transformer, highlighting its ability to faithfully reproduce a wide range of frequencies with precision and clarity.

Experiences with the Transformer:

To fully understand the capabilities of this audio transformer, we invite you to explore two articles that demonstrate its effectiveness and outstanding qualities:

• Hashimoto KT88 UL Push-Pull – Version with Diode Rectification: Discover how the Hashimoto KT88 UL Push-Pull transformer integrates perfectly in this configuration, delivering a unique and engaging audio experience.
• Hashimoto KT88 UL Push-Pull Redesigned with Tube Rectification: Explore the versatility of this transformer through a different rectification method, uncovering the sonic nuances it can provide.

In conclusion, the Hashimoto KT88 UL Push-Pull transformer is much more than a simple audio component; it is a catalyst that transforms mere musical notes into an emotional and immersive experience. Be ready to be carried away by the enchantment of sound, thanks to Hashimoto.