Avalon AD2055 - The AD2055 combines 100% discrete, pure class A signal amplifiers with state-of- the-art passive and active filter topologies. The AD2055's unique circuitry delivers very high resolution transient detail at the operational extremes of real world equalization demands. The AD2055 auto-bias DC servo loop control eliminates the need for all interstage capacitor coupling. The AD2055 breathes life into all musical performances!

Avalon AD2077 - The AD2077 mastering equalizer is an ultraistic design optimizing absolute signal integrity. Design features include 100% discrete pure class A signal amplifiers, state-of-the-art passive and active filter topologies and a DC coupled minimalist signal path. These unique designs offer the professional mastering engineer alternate tone selections in both filter domains while delivering the highest resolution and wide dynamic range with very low noise. Custom gold rotary switches give accuracy in 0.5dB, 1dB and 2dB steps. 104 switched frequencies per channel with X I0 range selectors provide frequency selections from 12Hz to 25kHz at 1/4 octave intervals. The Avalon AD2077 mastering equalizer is the most musically transparent analog EQ available today!

BUZZ - MPE 1.1 - The MPE-1.1 is a professional quality audio equalizer featuring a High Pass Filter, High & Low Shelving bands and two Parametric Mid bands. Individual bypass switches allows the user to remove unused sections from the signal path and an Input Gain control completes the package.

BUZZ - REQ2.2 - We wanted to build an audio equalizer with the sound of real passive resonant circuits (chokes and capacitors) but without sacrificing the adjustability and flexibility demanded by recording and mastering engineers.

Chandler - EMI TG12345 Curve Bender - The EMI TG12345 Curve Bender is the ultimate TG equalizer issued in celebration of the 75th birthday of Abbey Road Studios. The Curve Bender was conceived by Chandler Limited designer Wade Goeke and Abbey Road senior engineer Peter Cobbin and is based on the vintage EMI TG12345 desk used to record The Beatles and Pink Floyd.

Chandler Germanium Tone Control EQ - Chandler's newest series of units continues with the GERMANIUM Tone Control. The Tone Control uses active AND passive EQ circuits in combination with the GERMANIUM amplifier developed for the GERMANIUM Pre and incorporates the versatile Feedback and Drive controls as well. All bands use inductors for the fattest smoothest tone possible.

Elysia - Museq - This analog EQ is a combination of premium sound shaping capabilities with optimally matched parameters and the highest quality components, enabling the user to find musical results quickly and easily. The five bands and their ample gain ranges as well as some special features make sure that the museq can be used flexibly in any tracking or mixing situation, and the stepped controllers are easily repeatable for mix bus or mastering applications.

Empirical labs - Lil FrEQ - The EL-Q Lil FrEQ. Instead of daisy chaining EQ's and frequency processors, we tried to cram most of what an Engineer needs into one single-height box, while offering the highest performance of any design we know of.

Great River - EQ-1NV - The EQ-1NV (one channel equalizer) greatly modernizes the classic British “1081/1083”-type design. This “desktop” (and rackable) digitally controlled analog parametric EQ offers similar topology to vintage 1081/1083 models, but with welcome improvements. Newly designed Class-A discrete single-ended amplifiers and true inductor/capacitor (L/C) circuitry add greater clarity and dynamic range to the musicality of the vintage-era models. The EQ-1NV also has a unique discrete high-current Class-A balanced output stage.

Great River - EQ-2NV - The EQ-2NV (two channel equalizer) greatly modernizes the classic British “1081/1083”-type design. This single-rack-space digitally controlled analog parametric EQ offers similar topology to vintage 1081/1083 models, but with welcome improvements. Newly designed Class-A discrete single-ended amplifiers and true inductor/capacitor (L/C) circuitry add greater clarity and dynamic range to the musicality of the vintage-era models. The EQ-2NV also has a unique discrete high-current Class-A balanced output stage.

Great River - MAQ-2NV - The MAQ-2NV is a stereo mastering equalizer based on the much-respected EQ-2NV. This two-rack-space digitally controlled analog parametric EQ offers similar topology to vintage 1081/1083 models, but with welcome improvements. Newly designed Class-A discrete single-ended amplifiers and true inductor/capacitor (L/C) circuitry add greater clarity and dynamic range to the musicality of the vintage-era models. The MAQ-2NV also has a discrete high-current Class-A balanced output stage.

Retro Instruments - 2A3 - Vintage Tube Amplifiers and Custom-Designed Transformers set the soundstage. True Passive Equalization creates Bountiful and Musical Equalization curves. The new Retro 2A3 is designed as an ultra High-Fidelity Program Equalizer whose sonic benefits go beyond the equalization process. Accurate to the industry-standard Pultec EQ performance, the RETRO 2A3 adds HF boost frequencies in several new sweet spots.

Retro Instruments - 2A3 - Vintage Tube Amplifiers and Custom-Designed Transformers set the soundstage. True Passive Equalization creates Bountiful and Musical Equalization curves. The new Retro 2A3 is designed as an ultra High-Fidelity Program Equalizer whose sonic benefits go beyond the equalization process. Accurate to the industry-standard Pultec EQ performance, the RETRO 2A3 adds HF boost frequencies in several new sweet spots.

Thermionic Culture - Pullet - The Pullet is a passive equaliser originally designed to complement the Earlybird pre-amp. The Pullet will provide a variable Q boost at 11 frequencies of 21 dB and simultaneously a cut at 11 frequencies of 21dB. In addition high top can be boosted or cut with a shelving filter.

Vintage Design - EQ73D - The Vintagedesign EQ73D is a 3-band Class-A EQ module. EQ73D uses the same circuitry and components as in the CA73mk2 like Carnhill inductors and ELMA switches.