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500 series Microphone Preamp with HP Filter, 3-band EQ, Transformered Input and Class-A Transformerless Output. In Used, Excellent Condition
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The Iron Audio Audioworks H9 is a mic and line preamp, high pass filter, and equalizer in the 500 series format. The mic preamp and EQ combine for an instantly recognizable character and are all incredibly useful professional tools for tracking or mixdown.
The H9 features a transformer coupled, discrete Class A mic pre. The amplifier gives a snappy, open vibe with a woody character that’s perfect for any source. It handles transients with an ease and clarity that captures the essence like you're in the room. A Jensen input transformer carefully selected to match the amplifier plays a key role in the sonics and low-noise performance of the design.
A single precision rotary switch controls the input mode. Mic gain is available from 0 to 70 dB in 10 dB steps. The clockwise positions activate a line level input at +10, 0 and -10 dB gain, and automatically disconnect the 48V phantom power from the input.
The H9’s equalizer is a classic three band passive design. Each band uses a precision rotary switch for control. The high shelf gives unmatched air and sparkle with an effortless feel. The inductor mid band has 11 frequencies selected for enhancing individual features or helping tracks sit just right in the mix. The continuous gain knob paired with a boost or cut switch allows for fast “seek and destroy” identification and handling of problem frequencies. The low band acts as a 50 Hz shelf in cut in 3 dB steps, and a continuously variable peaking response with five center frequencies in boost. A separate discrete high pass filter is set for 80 Hz to tame unwanted rumble and can be combined with the low band to deliver powerful, authoritative lows. A second discrete gain stage acts as makeup gain for the EQ, and a discrete Class A buffer drives the line out.
This style of equalizer has been used on countless records – a testament to its flexibility and musicality for any voice, instrument, or genre.
As with all Iron Age products, the H9 is as discrete as possible, designed and made in the USA.
Here at Sound Pure we hand-select used and vintage pieces of gear for our inventory. Our used selection always reflects the high standards of quality and craftsmanship that we expect from all of our manufacturers. We are a small team of dedicated experts, located in Durham, NC. We buy, trade, and consign instruments that we truly believe in. Because of this, we have developed a reputation of quality and trust with our customers, located all over the world. Our best customers are the ones that truly understand our personal touch and commitment to everything we sell, and range from hobbyists and enthusiasts to some of the biggest names in the business. Our passion bridges the products we love with the real relationships we develop with our customer - whether they are a lifelong musician, or they are just getting started on their musical journey but care about value, quality, and being treated right.
We vigorously test everything we take in to ensure authenticity, functionality, and reliability. We are supported by one of the most well-respected luthiers in the Southeast, guaranteeing products that come in are thoroughly vetted, and that products that go out our in premium, performance- ready shape. We are so confident in our ability to provide the highest quality music equipment in the industry, we even invented our “Try Before You Buy” program where we can ship out a product before collecting actual payment.
Sound Pure's inventory is constantly changing, ever-evolving, with some items sold before reaching the website. Looking for something specific? Have questions about this product's condition or history? Want more photos, or to simply chat with an expert who's had his hands on this actual piece of gear? It is truly our pleasure to talk with our customers, please do contact us now.
Gain Range
Maximum Input Level
Maximum Output Level
Input Impedance
Output Impedance
Frequency Response
Signal to Noise Ratio
THD @ +15 dBu output
Power Consumption