Chat with us, powered by LiveChat

Warm Audio WA273 1073 Style Two Channel Microphone Preamp

OR

h m s

free-shipping-icon
In Stock!
Remove one item Add one item

Compare

Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!

    2 Day Shipping Icon

    Fast & Free Shipping

    Did you know AMS is the only music distributor with four distribution centers? And that means we can offer super-fast shipping on all your music products. Whether you don’t want the spark of inspiration to fade or you really need that replacement speaker before the next show, we have you covered anywhere in the U.S. And even better, it’s FREE!

    Free Extended Warranty

    Free 12 Month Extended Warranty

    You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.

    45 Day return

    Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.

    Canadian Shipping Information

    Welcome Canadian musicians! Buying your gear from AMS is as easy as going to a local music store, with more selection and more than competitive prices!

    Items with this logo are eligible to ship to Canada. Please note that you will be responsible for payment of brokerage fees, duties and other import taxes applicable to your order.

    NOTE: Free shipping offers do not apply to Canadian orders. Please be aware of custom fees - such as taxes and duties - when your order arrives. Since these fees vary from location to location, CUSTOMS FEES ARE NOT INCLUDED IN SHIPPING CHARGES. Please check with your local customs office for more information on the fees in your areas. Refusal to pay these fees will result in an undeliverable order. If returned, we do not refund shipping charges and may assess restocking fees to cover return shipping expenses.

    Rock Now Pay Later

    0% Interest Payment Plan

    Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.

    AMS Agent

    Have questions? 
    Talk to a sales specialist!

    800-319-9043

    Over the last 50+ years, professional engineers would unanimously agree the venerable 1073 has defined the tone of pop/rock records. The 1073 has been massively used in recording and live applications for decades and is still considered to be the “Holy Grail” of preamps today. The Warm Audio WA273 provides dual channel re-creations of this classic British preamp that each pay careful and humble homage to the original circuit.

     

    Warm Audio WA273 1073 Style Microphone Preamp Features:

    • Two Channel, Class A, 1073-Style British Microphone Preamp
    • UK Made Carnhill Transformers
    • Hand Wired, Hand Assembled
    • 80 dB Of Gain - Resistor Stepped Gain Switch
    • Fully Discrete
    • TONE Button - Changes Input Transformer Impedance for Varying Tone
    • Polarity Switch
    • 48V Phantom Power
    • 4 Position Inductor Based Hipass Filter - 50, 80, 160, 300 Hz
    • XLR Mic Input
    • Line Level TRS Input
    • TS Send/Receive Insert Jacks
    • XLR & TRS Line Level Outputs
    • Direct In, Instrument Input
    • Output Control
    • Led Level Indication
    • 19" Rackable
    • Ground Lift Switch
    • Internal IEC 115V/230V Power Inlet 

     

    Hand Wired, Hand Assembled

    The classic 1073 was hand-wired and so is the WA73 Family! Guru’s claim that a portion of the 1073’s classic tone can be attributed to the hand-wired nature of the build. The entirety of the WA73 Family of preamps is authentically hand-wired and hand assembled, including the PCB components that are all populated by hand.

     

    When Warm Audio decided to release the WA73 Family it was imperative to them that the products pay respectful homage to the sacred British console history in both design and performance. The tone and sweet character that the vintage units impart is so unique and familiar, that Warm Audio had only the pure desire to release truly sonic accurate replicas. After years of R&D, careful reverse-engineering, and countless hours of auditioning, the WA73 Family has been born!

     

    UK Custom Carnhill Transformers

    1073 enthusiasts unequivocally get excited about the component history in these classic circuits. The signal transformers are a common topic of conversation. The classic vintage units used various versions of transformers throughout the years, and the most coveted were the very first versions made by Marinair Radar. Marinair Radar Transformers are regarded as the most desirable 1073 choice due to their fluid and forgiving nature. They saturate sweetly when pushed, and have been known to make engineers cry when they hear how beautiful their mixes sound through them! Warm Audio worked closely with Carnhill Transformers of Cambridgeshire, UK, to design faithful replicas of these most coveted, early version transformers. The entire WA73 Family proudly utilizes these fantastic Carnhill Transformers. We at Warm Audio have not yet heard a modern day 1073-style preamp sound as close to the early vintage 1073 design as do our WA73 Family units with these beautiful custom Transformers.

     

    The WA73 Family of preamps are “Desert Island” boutique preamps but can also be classified as studio and live work-horses. The classic 1073 is known as a versatile tool that works with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA73 Family equally shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through. With 80dB of gain and a fully discrete Carnhill Transformer balanced signal path - there’s no recording, mixing or engineering task the WA273 can’t handle.

     

    Capacitors & Signal Path

    An important part of these classic British circuits not often discussed is the different styles of capacitors and output transistor used. We found it important to maintain integrity to the original design by using tantalum and polystyrene capacitors in the signal path and an output transistor choice that is much smoother in the high gain settings than what is typically found in modern 1073-style replicas.

    CALIFORNIA PROPOSITION 65 WARNING

    WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

    Shop Similar Models
    Copyright © 1996-2025 American Musical Supply, Inc. All rights reserved