A passive DI box with vintage-inspired sonic characteristics.

North Collins, NY (September 22, 2020) -- Lightning Boy Audio introduces the TI Box, AKA “Thicker Injection Box.” This is a passive DI box with vintage-inspired sonic characteristics. Its tone comes from custom designed LBA-MC15 transformer to deliver thicker tone and 4.6dB greater output volume than typical of modern passive DI Boxes. This box is not a recreation of a classic DI, but rather a unique take on classic ideas. Therefore, its sound, while colorful in a vintage sort of way, is unique to this device. The frequency response is flat across and beyond the audio spectrum as measured with test equipment. In practical use, you’ll probably notice a bit of heft in the sub-bass, dominance in the mids, and a bit of a softening in the highs, all of which define the TI Box sound.

The TI Box features 1/4" input and bypass jacks, a Neutrik XLR balanced output, phase invert switch, and ground lift switch. Designed and hand crafted in the USA. Sold direct from lightningboyaudio.com for $169 USD.

Watch the company's video demo:

For more information:
Lightning Boy Audio

A few simple chords is all it takes.



  • Learn to play a 12-bar blues, in three different keys, using one shape.
  • Study an assortment of strumming and picking patterns.
  • Gain a basic understanding of the 12-bar blues form.
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As usual, there is more to this lesson than the title implies. We will be working with one chord shape at a time, but over the course of the lesson we’ll study three different shapes. The final example in this lesson incorporates all three shapes to demonstrate how a few basic ideas can provide us with infinite possibilities.

It is important to know that for every chord name in this lesson there are countless shapes—also known as fingerings or voicings—available. For this lesson, I chose what I consider to be the most practical and flexible shapes.

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See a sampling of picks used by famous guitarists over the years.

Marty Stuart

Submit your own artist pick collections to rebecca@premierguitar.com for inclusion in a future gallery.

My years-long search for the “right” Bigsby-outfitted box finally paid off. Now how do I make this sumbitch work in my band?

Considering the amount of time I’ve spent (here and elsewhere) talking about and lusting after Gretsch hollowbody guitars, it’s taken me a remarkably long time to end up with a big Bigsby-outfitted box I truly love. High-end Gretsches are pricey enough that, for a long time, I just couldn’t swing it. Years ago I had an Electromatic for a while, and it looked and played lovely, but didn’t have the open, blooming acoustic resonance I hoped for. A while later, I reviewed the stellar Players Edition Broadkaster semi-hollow, and it was so great in so many ways that I set my sights on it, eventually got one, and adore it to this day. Yet the full-hollowbody lust remained.

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