Get A Standard Equalizer With The API 550A Discrete 3 Band EQ

Few equalizers enjoy the respect and admiration of the coveted API 550A. Designed by the now-legendary Saul Walker in the late '60s, the discrete 550A was first used as a modular OEM equalizer. As the industry rapidly embraced the sonic quality of the 550A, it quickly found its way into many custom console designs by Frank DeMedio and other leading engineers. Many of these consoles are still in use today.

Forty years later, the 550A remains the standard against which other EQs are measured, and it has played a major role in the recording industry for decades. Still copied but never duplicated, the 550A became API's standard channel module EQ when the company began manufacturing consoles in 1971. With virtually all existing units spoken for, popular demand for this EQ resulted in API finally resuming production in 2004.

The 550A provides reciprocal equalization at 21 points in 5 steps of boost to a maximum of 12dB of gain at each point. The fifteen equalization points are divided into three overlapping ranges. The high and low frequency ranges are individually selectable as either peaking or shelving, and a band-pass filter may be inserted independently of all other selected equalization settings. Frequency ranges and boost/cut are selected by three dual-concentric switches, and a pushbutton "in" switch allows the EQ to be silently introduced to the signal path. A small toggle switch is used to insert the band-pass filter into the 550A.

The combination of Walker's incomparable 2520 op amp and his "Proportional Q" circuitry gives the 550A user an uncomplicated way to generate acoustically superior equalization.

With the long-awaited reissue of this unit, an EQ that has had such a part in the history of recording is continuing to make history in today's music.

Product Specs

Condition:
Brand New (New)
Brand
API
Model
550A 500 Series 3-Band Equalizer
Categories
Equalizers, 500 Series

About The Seller

Chuck Levin's Washington Music Center
Joined Dec 2014
Wheaton, MD, United States

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Return Window

This product can be returned within 14 days of receipt.

General Terms

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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Buyer receives a full refund in their original payment method less any shipping costs.

Special Conditions

We offer full refunds for unopened and unused products, in their original packaging, in good condition returned to the Washington Music Center (11151 Veirs Mill Rd., Wheaton, MD 20902) in person or via a return within 7 days of receiving your product(s). A copy of your original receipt is required with the product in ALL cases. Within 14 days, we will issue store credit under the same conditions. All other return inquiries will be assessed at a minimum 15% restock fee, subject to inspection of the unit to be returned and at the discretion of management. Cost of shipping will not be refunded for items shipped to you, or for rush delivery to the store. This includes the cost the store incures on free shipping orders. Returns are NOT accepted on the following items due to health and/or licensing regulations: harmonicas, mouthpieces, microphones, software, books, CDs, DVDs, strings, reeds, headphones, in-ear monitors, bulbs, tubes, raw speakers, layaway deposits, special order items.

We do not offer returns/refunds or warranty support on products shipped outside of the United States. Some manufacturer warranties will be voided if an item is shipped outside of the United States.

Here’s what we’d like you to remember: Chuck Levin’s Washington Music Center always has been and remains a family-run business in practice and in spirit. That means we understand the need for flexibility in specific situations. There’s always a Levin at or near the store to address your concerns, answer questions or discuss any matters of importance to you.

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Chuck Levin's Washington Music Center

Wheaton, MD, United States
Joined: Dec 2014

Seller Achievements

API 550A Discrete 3 Band EQ
$1,135.25
+ Free Shipping