Author Archives: Nick

Choosing Output Op-Amps

The output op-amp is the chip which provides amplification of the audio signal to the headphones. With some of my amplifiers, I offer a "standard" op-amp and a few other choices. I'm often asked how the op-amps differ in audio quality or which op-amp to pair with a certain set of headphones. My short answer: choose the standard op-amp, the AD8610. For a bit more information on how I arrive at this recommendation, read on.
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UHA-6S.MKII is now shipping

The UHA-6S.MKII is now shipping. For performance specs and configuration options, see the product page.

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UHA-6S.MKII available in June

The new UHA-6S.MKII is now in full production, with first units scheduled to ship in early June. The MKII has several improvements over the original model, including an additional digital input, lower output noise, higher output power, and a redesigned case. Now available for pre-order.
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UHA-6S update

The bad news: UHA-6 and UHA-6S amps are officially discontinued. The good news...
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New headquarters, new amps…

Leckerton Audio is happy to call the vibrant tech city of Austin, Texas, its new home. With this move complete, the focus is now on several new amp designs. Look for them in the coming months!
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Price Increases: A Note to My Customers

To all my customers:

One of my goals as an amplifier designer is to provide high-quality audio at a reasonable price. Unfortunately, I can no longer keep my prices as low as I would like while maintaining a viable business. The recent increase in the price of my products is necessary in order to offset…

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UHA-6S Performance Measurements: Harmonic Distortion

When it comes to low-distortion performance, not all headphone amplifiers are created equal. Choosing a low-distortion amplifier means you are less likely to experience unwanted and unpleasant coloration of the sound. The Leckerton Audio UHA-6S and UHA-6 amps deliver a highly linear output into all types of headphone loads. Graphs of harmonic distortion show how the Leckerton stacks up against the competition.
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UHA-6S and UHA-6 USB Amps are iPad-compatible

With a special factory modification, the UHA-6S and UHA-6 DAC/Amp models are compatible with the Apple iPad. The modification is provided free of charge to all new and existing customers.
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What is Headphone Crossfeed?

The UHA-4 includes a crossfeed mode which simulates the acoustics of a real-world listening environment, thus reducing listener fatigue and that unnatural, "inside-your-head" sound which headphones can give. The UHA-4 crossfeed circuit is designed to have minimal impact on frequency response, and it is truly bypassed when switched off.
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Introducing the UHA-4 Slimline USB DAC/Amp

The new UHA-4 Slimline USB DAC/Amp features digital volume control for tight channel-to-channel matching, a defeatable crossfeed circuit to reduce the unnatural, "inside-your-head" sound which can occur with headphones, and a low-profile height of only 0.47 inches. Now available for $199.
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