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Warm Audio WA273 Dual Channel British Microphone Preamp (B-Stock)

A Dual Channel '73 For The Rest Of Us

If there’s one style of preamp that professional engineers would unanimously agree has defined the tone of pop/rock records for decades, it would most definitely be the venerable '73-style of mic pre. '73-style preamps have been massively used in recording and live applications for many years and are still considered to be the “Holy Grail” of preamp choices today. The Warm Audio “WA73 Family” consists of single and dual channel '73-style preamps (with & w/out EQ), that each pay careful homage to British audio history.

When we at Warm Audio decided to release the WA273 it was imperative that it met vintage expectation in both design and performance. The tone and sweet character that vintage '73-style mic preamps impart is so unique and familiar, that we had only the pure desire to release sonically accurate reproductions. After years of R&D, careful reverse-engineering, and countless hours of auditioning, the WA273 was born!

The WA273 is a “Desert Island” boutique preamp, but it can also be classified as a studio and live work-horse. Classic '73-style preamps are known for being versatile tools that work with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA273 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 that the WA273 can’t handle.

UK Custom Carnhill Transformers

Enthusiasts unequivocally get excited about the components used in classic '73-style British preamps. The signal transformers are a common topic of conversation. Vintage units used various versions of transformers throughout the years, but the most coveted were the earliest versions. These are regarded as the most desirable 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 reproductions of these most coveted, early version transformers. We at Warm Audio have not yet heard a modern day '73-style preamp sound as sweet and musical as does our WA273 with these beautiful custom Transformers.
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Capacitors & Signal Path

An important part of classic British tone not often discussed are the different styles of capacitors and output transistor used in '73-style circuits. We found it important to maintain integrity to early British designs 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 '73-style preamps.

Hand Wired & Hand Assembled

Classic '73-style preamps were often hand-wired and so is the WA273! Guru’s claim that a portion of the sought after classic British tone can be attributed to the hand-wired nature of the build. The WA273 is hand-wired and hand assembled, including the pcb components that are all populated by hand.

Specifications
  • Dual Channel, Class A, '73-Style British Microphone Preamp
  • UK made Carnhill TransformersHand wired, hand assembled
  • 80dB 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
  • Freq response 20Hz - 20kHz +/-.5 dB
  • 19" rackmountable
  • Internal IEC 115v/230v power inlet









Product Specs

Condition:
B-Stock (Used)
Brand
Warm Audio
Model
WA273-BSTK
Categories
Microphone Preamps

About The Seller

Music Store Live
Joined Oct 2013
National City, CA, United States

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This product can be returned within 3 days of receipt.

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Items must be returned in original, as-shipped condition with all original packaging and no signs of use. Buyer assumes responsibility for all return shipping costs unless the item was not received as described.

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At MusicStoreLive.com we are proud to offer free shipping to you and a 30-day return policy in the 48 contiguous states on all new* items. This policy allows you to get your gear hassle-free and try it with your own rig to be sure that it truly fits with your playing style and sound. If you don't like it, we'll be happy to take it back. Please contact us for a Return Authorization number prior to returning any purchases.

Your order must ship to the billing address associated with your credit card, PayPal, or other method of payment (unless an alternate shipping address has been approved by an MSL Gear Specialist).

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An indirect signature will be required upon delivery for all transactions over $250. If you would like to require a signature on a transaction of less than $250, please request it when you place your order. If you would like the signature requirement waived on orders of $250 or above, also please contact us before your order ships.

We do not insure packages valued under $3,000. If you would like to add insurance for delivery please request it prior to us shipping the item out. On returns, it is the buyer's responsibility to ensure that the item is packed properly and returns to us in the same condition it was sent out in. We always recommend purchasing insurance when returning an item.

All returns are subject to a Tech Check upon arrival. Any instrument that is returned with damage, wear and tear (including pick marks), missing or replaced parts, or missing protective or packing materials are not eligible for a full refund. Refunds generally happen within 2-4 business days after the item is received back in our possession.

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Music Store Live

National City, CA, United States
Joined: Oct 2013

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Warm Audio WA273 Dual Channel British Class A Microphone Instrument Line Preamp
$899.10
+ Free Shipping