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Solid State Logic 611EQ 500 Series Parametric Equalizer , $899.99 - Add to Cart Skip to Product Information

Solid State Logic 611EQ 500 Series Parametric Equalizer

500 Series Mono 4-band Parametric Equalizer Module with Dual-mode Design
Item ID: 611EQX2
Solid State Logic 611EQ 500 Series Parametric Equalizer
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Solid State Logic 611EQ 500 Series Parametric Equalizer
In Stock!

Only 4 left in stock! Order Soon!

Two Flavors of Classic SSL EQ in One 500 Series Module

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Our Product Research Team

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Put legendary console equalization in your rack with the SSL 611EQ 500 Series 4-band EQ module. In fact, you actually get two legendary EQs in the 611EQ. Early ’80s SSL E Series consoles had the “Brown Knob” EQ, and later consoles used the “Black Knob” EQ, each with distinct sonic characteristics. The 611EQ lets you switch the midrange bands between these two flavors of EQ, so you’ll be equipped to shape any material to your liking. Add a preamp module and a dynamics processor, and you’ve got a superb custom SSL channel strip. Sweetwater’s advice: for an EQ you can rely on for virtually any task, look to the SSL 611EQ 500 Series EQ module.

Legendary SSL sound quality and vibe

Since the early ’80s, producers, engineers, and artists have revered SSL E Series consoles for their huge sound and distinctive character. A big part of the sound came from the E Series channel strip, and you get the same circuits in the 611EQ module.

“Brown Knob” EQ: the original SSL EQ, sweet and musical

Early SSL E Series consoles sported the “Brown Knob” EQ design (named for the color used on the LF section’s knobs). You get 15dB of cut/boost, and a special design that ensures the 3dB up/down points for each band fall at the same musical interval from the center frequency. Said another way, no matter where you cut or boost the 611EQ, the results sound natural and highly musical.

“Black Knob” EQ: a more aggressive EQ for modern styles

In the mid-’80s, SSL worked with the legendary George Martin to develop the 242 EQ circuit, or the “Black Knob” EQ to be found on later E Series consoles. It’s more aggressive than the “Brown Knob” EQ, with up to 18dB of cut or boost, and a different control circuit layout that gives you much tighter reign over low frequencies.

SSL 611EQ 500 Series EQ Module Features:

  • Mono 4-band parametric equalizer module with two distinct flavors of legendary SSL EQ
  • “Brown Knob” mode is the sound of early-’80s E Series consoles, with 15dB cut/boost and musical response
  • “Black Knob” mode is the sound of later E Series consoles, with 18dB of cut/boost and a tighter sound
  • LF and HF shelving bands can be switched to a bell-curve response for maximum versatility
  • The perfect way for project studios to get the sound of a world-famous console, affordably
  • Requires compatible 500 Series chassis

Warranty Info

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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.

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