¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701
(800) 222-4700 Talk to an expert!
Press Space or Down Arrow to open the quick shopping cart menu. Press Escape to close the menu and return to the Shopping Cart link.
Loading Cart
Your Cart Is Empty

See what's new at Sweetwater.

My Cart this.cartQty

AEA KU5A Supercardioid Ribbon Microphone Certified Open Box , $1,439.10 - Add to Cart Skip to Product Information

AEA KU5A Supercardioid Ribbon Microphone Certified Open Box

Ribbon Microphone with Supercardioid Polar Pattern and Active Electronics
AEA KU5A Supercardioid Ribbon Microphone
AEA KU5A Supercardioid Ribbon Microphone

Certified Open Box Savings!

Save $159.90 What is Certified Open Box?

The price below reflects your savings.

Savings: $159.90 New for $1,599.00

Ask An Expert Our Expertly trained Sales Engineers are ready to help! What is a Sales Engineer?
AEA KU5A Supercardioid Ribbon Microphone Certified Open Box

Certified Open Box Savings!

Save $159.90 What is Certified Open Box?

The price below reflects your savings.

Savings: $159.90 New for $1,599.00

A Ribbon For Any Source

This article was Written By

Our Product Research Team

Get to know them!

The AEA KU5A breaks new ground in ribbon microphone technology with its supercardioid polar pattern that rejects off-axis sound from room reflections, other instruments, and loud stage ambience in live situations. At close range, the KU5A captures extended highs while retaining the smooth sonic character one expects from an AEA ribbon mic. Singers can get right up on the grille without damaging the ribbon element, because the KU5A's interior components are the most well-protected of any mic in the AEA lineup. The KU5A's active electronics make for a perfect match with any preamp. With its robust build quality, the AEA KU5A is a great choice for everyday use in the studio and on the road.

Captures what it's aimed at

Five years of intensive R&D resulted in a remarkable breakthrough: a ribbon mic you can use on any source. Traditional side-address ribbon mics have a native figure-8 pickup pattern with excellent side rejection, but equal sensitivity front and back. With its supercardioid polar pattern, the front-address AEA KU5A captures only what it's aimed at, rejecting off-axis leakage that can muddy up your signal. Whether capturing a vocal, electric guitar, or a snare drum, the KU5A delivers where conventional ribbon mics simply cannot.

Use it with any preamp

Passive ribbon mics have low output and require a high-gain preamp — which may not always be available. The KU5A has active electronics, so you can use it with any preamp. With the KU5A, you can choose a preamp for its sonic qualities alone. Traditional ribbon mics were notoriously delicate. Thanks to its rugged design and construction, you can use the AEA KU5A close-up on loud sources (a switchable highpass filter is provided to reduce proximity effect), onstage, or outdoors without fear of damaging the internal components or the attractive casing.

AEA evolves the ribbon mic

A new player entered the ribbon microphone manufacturing game in 1998 — AEA. Established by engineers and technicians that had been repairing classic RCA ribbon mics since before 1976, AEA set out to not just pay homage to, but to faithfully reproduce the sound and performance of the original RCA 44 ribbon microphone. And to the acclaim of former RCA engineers, they accomplished just that — in a robust modern mic you can rely on session after session. AEA designs impart classic sonic qualities and response to your tracks that you can only get from a ribbon transducer. Many engineers at Sweetwater have used delicate vintage ribbon microphones, and we appreciate AEA mics for their durability and versatility as much as for their superior sound.

AEA KU5A Ribbon Mic Features:

  • Innovative front-address design
  • Supercardioid polar pattern mitigates off-axis leakage
  • Active electronics optimized for all preamps
  • Durable construction for close range, outdoor, and live use
  • Switchable highpass filter to reduce proximity at close range
  • Quality-crafted in the USA
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.