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  • Lindell Audio PEX-500 Passive EQ
    Lindell Audio PEX-500 Passive EQ
    500 Series Passive EQ 500 Series Rack Format Passive Parametric Equalizer with Stepped Frequency Controls and True Bypass Drop a Lindell PEX-500 equalizer into your API 500 Series compatible rack and you're in for a real sonic treat. Built around a classic Pultec parametric EQ design, the PEX-500 gives you the open mids, creamy highs, and punchy lows that only a true passive equalizer can deliver. Like the classic EQs...
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    (2 reviews) Sale Price: $299.99

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    (2 reviews)
  • Lindell Audio 6X-500 Mic Pre / EQ
    Lindell Audio 6X-500 Mic Pre / EQ
    500 Series Mic/Pre EQ 500 Series Mic Preamp/Equalizer with Single-channel Transformer-coupled Mic Preamp and 2-band Pultec-style Equalizer The Lindell 6X-500 juices your 500 Series rack with a single-channel transformer-coupled mic preamp along with a passive 2-band Pultec-style equalizer. This all-discrete design, based upon the highly respected 990 op-amp, gives you an EQ section with the magical sound of a classic Pultec. With a...
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    (1 review)

    (1 review) Sale Price: $299.99

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    (1 review)
  • Moog The Ladder
    Moog The Ladder
    500-Series Ladder Filter 500 Series Ladder Filter with Low Pass and High Pass Functions, Variable Attack and Release Controls, and Adjustable Resonance There's nothing like the sound of a Moog ladder filter! The Ladder gives you the world-famous sound of Bob Moog's original ladder filter in a handy 500 Series rack format. This amazing modular Moog filter lets you add punch to bass, spice up your synths, and generally tap into pure analog bliss....
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    (3 reviews)

    (3 reviews) Sale Price: $699.00
    List Price: $799.00

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    (3 reviews)
  • KuSh Audio Electra
    KuSh Audio Electra
    500 Series Electrified Transient Parametric Equalizer 500 Series 4-band Single-channel Equalizer with Two Sweepable Proportional-Q Midbands, and High/Low Shelving The Kush Electra is a 4-band 500 Series EQ that lets you redefine how the transients and harmonic components of your signal interfuse. This "Electrified Transient Equalizer" employs a multi-topology design to give you new creative options in defining how your sounds interlock, move air, and even...
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    Sale Price: $549.00
    List Price: $599.00

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  • Great River 32EQ
    Great River 32EQ
    500-series Harrison EQ Single-Channel Reproduction of the Harrison 32 Series 4-band Parametric Equalizer Formatted for 500 Series Racks The 32EQ is the result of a close collaboration between Great River and the original designers of Harrison's 32 Series consoles. The result is the 32EQ - a faithful reproduction of the legendary equalizer and filter based on Harrison's exact schematics that sounds and behaves just like the...
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    (8 reviews)

    (8 reviews) Sale Price: $775.00
    List Price: $1,010.00

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    (8 reviews)
  • API 550A
    API 550A
    500-series 3-Band EQ Modular 3-band Equalizer, 500 Series, With 5 API-selected Frequency Centers, 12dB of Boost/Cut Per Band, and Proportional Q Control The API 550A is a true classic — an EQ that's been embraced since the late 60s, and a standard by which countless EQs have been judged. Here, reissued in 2004 in its original modular form (after a long, highly anticipated wait), the API 550A puts a piece of music history into your 500 Series...
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    (1 review)

    (1 review) Sale Price: $1,015.75
    List Price: $1,195.00

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    (1 review)
  • Solid State Logic 611EQ
    Solid State Logic 611EQ
    E Series EQ 500 Module 500 Series Mono Parametric Equalizer Module, with Twin EQ Design Put legendary console EQ in your rack with the SSL 611EQ 500 Series 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. You can switch the midrange bands between these two flavors...
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    (1 review)

    (1 review) Sale Price: $889.00

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    (1 review)
  • API 550b
    API 550b
    500-series 4-Band EQ Modular 4-band Equalizer, 500 Series, With 7 API-selected Frequency Centers, 12dB of Boost/Cut Per Band, and Proportional Q Control Incorporating API's legendary circuitry, the API 550b 4-band equalizer exudes that royal API blood line in every ounce of its sonic character. Artfully blending the past with the present, the API 550b carries the torch from the now-classic API 550EQ — delivering just the right amount of...
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    (1 review)

    (1 review) Sale Price: $1,100.75
    List Price: $1,295.00

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    (1 review)
  • elysia nvelope 500
    elysia nvelope 500
    500-series Compressor Stereo/Dual Mono EQ and Dynamics Processor Reshape the sound of your tracks or entire mix with the elysia nvelope 500. This 500 series Class A audio processor lets you dial in the attack of your track to give it more or less punch in the mix. This is perfect for your drum mixes, guitars, keyboards, and much more. The sustain control...
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    (1 review)

    (1 review) Sale Price: $975.00
    List Price: $1,049.00

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    (1 review)
  • Maag Audio EQ4
    Maag Audio EQ4
    Special Offer: 24 Months Interest Free Financing!
    500-Series 6-Band EQ 500 Series 6-band EQ Add air to your tracks, with Maag Audio's EQ4 500 series equalizer. Have you ever wanted to get condenser-style high-end coloration from your dynamic microphones? The EQ4 is just what you need. Its AIR BAND control features five fixed shelf boost curves that add breath and lightness to your sound....
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    (2 reviews)

    (2 reviews) Sale Price: $849.00
    List Price: $995.00

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    (2 reviews)
  • Chandler Limited Little Devil Equalizer
    Chandler Limited Little Devil Equalizer
    500-series Equalizer Equalization 500 Series Module with Treble and Bass Shelf, Hi- and Lo-mid 7-selection "Q" Switching, and 3-position Filter Chandler Limited's Little Devil Equalizer fits into any 500-series module, putting Chandler's all-discrete circuitry, transformer-balanced designs, and premier hand-made quality into the popular modern format. The Little Devil Equalizer is an English-style console EQ, which uses concepts from...
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    (1 review)

    (1 review) Sale Price: $1,237.50
    List Price: $1,375.00

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    (1 review)
  • API 560
    API 560
    500-series 10-Band Graphic EQ Modular 10-band Graphic Equalizer, 500 Series Classic Reissue, With 12dB of Boost/Cut Per Band, Silent Bypass, and Proportional Q Yet another API modern classic, the 560 is a discrete 10-band graphic EQ — originally conceived for the API consoles in the 60s and 70s. This reissue is all about helping you achieve difficult equalization tasks. Not only does the API 560 give you that unique "API sound," but it also offers...
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    Sale Price: $803.25
    List Price: $945.00

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  • Tonelux EQ5P
    Tonelux EQ5P
    500-series 4-band PE Para EQ 500 Series Module 4-band Equalizer with Proportional "Q" (Constant Energy Curve) and High-frequency Shelf Button Crafted by Tonelux, with esteemed audio guru Paul Wolff at the helm, the EQ5P is designed to be your go-to EQ when you're after vintage flavor. The unit trades a specific Q control in favor of a "Constant Energy Curve." As you boost and cut, you'll experience a musical result with the bandwidth...
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    Want to save even more? We have a Demo model of this product available for just $629.99. Demos often sell within hours, so act fast if you are interested. Learn more »

    Sale Price: $699.99
    List Price: $949.00

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  • Radial Q3
    Radial Q3
    500-series Q3 EQ Module 3-band Passive Inductor-Coil EQ with High-pass Filter, and Gain Control Want a smooth-sounding warm EQ for your 500 series setup? You need the Radial Q3 inductor-coil EQ module. Following in the tradition of other passive EQs, the Radial Q3 uses sweet-sounding inductor-coil EQ. Dial in great tones for instruments and vocals on your next session. Powerful top-end boost,...
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    Want to save even more? We have a Demo model of this product available for just $539.10. Demos often sell within hours, so act fast if you are interested. Learn more »

    Sale Price: $599.00
    List Price: $700.00

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  • Electrodyne 511New
    Electrodyne 511 
    ElectroDyne 511 2-Band EQ 500 Series 2-band EQ with Peaking/Shelving and Four Frequencies Selectable Per Band The Electrodyne 511 500 Series EQ fortifies your rack with great-sounding "Golden Era" technology. Electrodyne consoles juiced some of the hottest hits of the late '60s and early '70s at top studios like Capitol, Warners, Stax, Decca, and Motown. The 511 is a 2-band discrete-transistor...
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    Sale Price: $1,050.00
    List Price: $1,150.00

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  • LaChapell Audio Model 583e
    LaChapell Audio Model 583e
    500-series 3-band EQ 500 Series 3-band EQ with a Transformer-isolated Tube Preamp and a Transformerless EQ section The Model 583e EQ by LaChapell Audio is an ultra-clean 3-band EQ that features the same impressive Jensen JT-115k transformer-based input stage as that found in the Model 583s. There are two sections in the Model 583e: the preamp section and the EQ section. The preamp section features plenty of...
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    Sale Price: $1,475.00
    List Price: $1,995.00

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  • Radial Q4 500 Series EQ
    Radial Q4 500 Series EQ
    500-series EQ Class a State-variable 500 Series Filter with Fixed Low- and High-frequency Shelving, and Two Semi-parametric Mid Bands with Wide/Narrow Q The Radial Q4 is a true Class A 500 Series state-variable filter that gives you four EQ bands with fixed low- and high-frequency shelving, plus two semi-parametric mid bands that range from 300Hz to 2.4kHz, and 1kHz to 12kHz - and let you choose between wide or narrow Q. Designed to interface with...
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    Sale Price: $599.99
    List Price: $700.00

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  • Empirical Labs DocDerr
    Empirical Labs DocDerr
    500-series Tone Enhancer 500 Series Instrument Channel Strip Module with Preamp, 4-band EQ, Tape Emulation Circuit, and Mix Knob Empirical Labs created the DocDerr 500 Series channel strip module to give your signal impressive punch in any mix - and to put you in complete control. The DocDerr includes a low-noise preamp that gives you up to 16dB of gain, and that's just the beginning. In addition to a 3-band parametric EQ...
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    Sale Price: $799.00
    List Price: $899.00

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  • Aphex EQF 500
    Aphex EQF 500
    500-series EQ 3-band Semi-parametric EQ with Highpass and Lowpass Filters, and Jensen Output Transformer Dial in your ideal sound with the Aphex EQF 500 module. A 3-band semi-parametric EQ lets you find your perfect tone for any track. Selectable variable high and lowpass filters help focus your sound further. The high and low EQ bands can be set to either peak or shelf. All of these tone-sculpting...
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    Sale Price: $499.00
    List Price: $629.00

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  • A Designs EM-PEQ
    A Designs EM-PEQ
    500-series Pultec EQ 500 Series Pultec-style EQ Module The A Designs EM-PEQ card sonically nods to the classic Pultec EQP-1A sound. The classic all-tube Pultec EQP-1A goes down on the record books as one of the most venerated equalizers of all time, cherished by recording and mastering engineers for its almost mythical ability to improve the sound of...
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    Sale Price: $1,095.00
    List Price: $1,225.00

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Sweetwater's selection of quality 500 series eq is the best and most reliable you'll find anywhere. We back up the products we sell with excellent service and an incredibly knowledgeable staff, so you can be confident that any 500 series eq question you may have will be answered by experienced professionals who use the gear themselves. Sweetwater's vast inventory and free shipping on most items mean we can deliver 500 series eq quickly, at a great value. Look to the friendly pros at Sweetwater to help you shop for 500 series eq.

Sweetwater Sound Inc.
5501 U.S. Hwy 30 W
Fort Wayne, IN 46818
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