An Amazing Small-diaphragm Condenser Mic
Part of the company’s 3 Zigma modular system, the ADK SD-H TL pairs an HA-TL II head amp with an SD-H capsule module. The transformerless HA-TL II head amp offers transparent, straight-wire performance, along with super-low noise characteristics. Meanwhile, the hypercardioid small-diaphragm SD-H capsule module offers more directionally than its cardioid counterpart, along with a more pronounced proximity effect. The SD-H TL performs brilliantly on upright bass, as well as on fretted instruments, such as acoustic guitars and mandolins. This small-diaphragm condenser microphone boasts a straightforward signal path with zero superfluous circuitry to impart artifacts, coloration, or distortion. The SD-H TL includes a high-quality shockmount and a storage case. Engineers searching for a first-rate pencil condenser will appreciate the magic that the ADK SD-H TL brings to their recording sessions.
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The ADK 3 Zigma modular system
ADK’s 3 Zigma series comprises two components: a capsule module and a head amp module. The swappable capsule modules reference a gamut of legendary microphones, enabling you to expand your mic locker with C12-, 251-, 47-, 67-, and 49-flavored models, among others. You also get a choice of two excellent head amp options. Choose the HA-TL ultra-low noise head amp for a microphone with incredibly low self-noise. For louder sound sources that require a mic that can handle high SPL, choose the HA-FX ultra-high SPL transformer coupled head amp. Of course, Sweetwater engineers recommend keeping one of each on hand to be prepared for any recording situation.

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ADK: modern specs, vintage sound
Driven by musicians and engineers with many decades of experience, ADK’s product development is informed by input from the worldwide community of artists, producers, and golden-eared studio and live sound engineers who assisted in the design of these microphones. Despite their impressive affordability, ADK microphones benefit from both best practices and premium components. ADK mics are engineered with minimalist circuit paths to extract maximum sonic performance from each and every design. As a result, ADK microphones exhibit exponentially better dynamic range and lower self-noise than the vintage classics they’re inspired by. Sweetwater is delighted to offer you ADK’s outstanding lineup of high-value, high-performance mics. Meticulously handcrafted using the best possible components sourced from highly respected parts manufacturers worldwide, ADK microphones are poised to elevate the quality of your sound.
ADK SD-H TL Features:
- Part of ADK’s 3 Zigma modular system — pairs an HA-TL II head amp with an SD-H capsule module
- Transformerless HA-TL II head amp offers transparent, straight-wire performance and super-low noise
- Hypercardioid small-diaphragm SD-H capsule module offers more directionally than its cardioid counterpart
- Exhibits a pronounced proximity effect
- Performs brilliantly on upright bass and fretted acoustic instruments
- Straightforward signal path includes zero superfluous circuitry to impart artifacts, coloration, or distortion
- Includes a high-quality shockmount and a storage case