Check the listing for details. Yamaha YDG-2030 Programmable Digital Parametric Equalizer. Extremely Rare!. Condition: Used. Listed at 799.00 USD. For sale is a like-new condition Yamaha ydg-2030 fully programmable parametric eq. (1-to-5) The specimen featured here was one of the two available. Hands down, one of my favorite eq to-date. Since aquired, used as a back-up unit only and almost untouched for most of its life-cycle over the years just sitting idly on the rack. Up until recently, it received a full maintenance service including new battery installed. Sounds and works wonderfully. Retailed for over $1000 when new. Product info in a nutshell: 2 Channel digital equalizerMIDI Interface - The MIDI Interface allows EQ programs to be recalled and parameter changes to be made from a MIDI sequencer, computer or similar device. The MIDI interface also features a bulk dump function that allows the contents of the YDG2030 memory to be transferred to any MIDI device capable of recording bulk data."Flat" key sets all gain parameters to "0" in one operationEmphasis On/Off control20-bit digital graphic equalizer with intuitive interface and outstanding performance.Superior Audio Quality - 110-dB dynamic range, precise response from 20 Hz to 20,000 Hz and total harmonic distortion of less than 0.007% (emphasis on). 20-bit A/D and D/A converters sampling at 44.1 kHz.2-channel 30-band Format With switchable Gain - It features a 2-channel 30-band EQ format with 1/3-octave bands from 25 Hz to 20 kHz. Extra control flexibility is provided by switchable +/-12 dB or +/-6 dB gain ranges.LPF, HPF and Four Notch Filters per Channel - It has programmable high-pass and low-pass filters as well as a group of four notch filters with variable frequency and bandwidth.40-program Memory - Up to 40 complete equalizer setups can be stored in internal RAM memory and recalled as needed.Independently Programmable Channel Delays - Each channel also provides a variable delay parameter that can be used for phase alignment, speaker distance compensation, and other applications. The delay range is from 0 to 714 milliseconds, adjustable in sub-millisecond steps.Feedback-seeking Sweep Function - The YDG2030 includes a sweep function that lets you sweep a preset amount of boost or cut continuously through all bands. Once the problem band has been located, you can easily compensate in the normal way.Professional Analog Inputs and Outputs - Both the YDG2030's inputs and outputs are electronically balanced with XLR-type connectors. Extra I/O versatility is provided by independent -20/+4 dB level selectors for the inputs and outputs.Expanded EQ Network Capability - The network can include up to 31 YDG2030 units to efficiently handle even the largest and most complex sound reinforcement systems. Other extremely hard-to-find equalizer and electronic crossovers up for grabs: 1. A completely refurbished Yamaha Q2031 analog graphic equalizer. This versatile eq is a must in any audio set-up professionally or hi-fi system. (photos 6-to-10, $599) From the manufacturer: The Q2031B offers 31 equalization bands at 1/3 octave intervals from 20 Hz to 20 kHz. It incorporates specially designed active filters that provide minimum phase shift and smooth response at any boost or cut setting.Range switches. Selectable ±6 dB or ±12 dB EQ ranges offer extra control versatility. The ±12 dB range offers wide-range control that can be useful for broad tonal variation or feedback control, while the ±6 dB range provides fine control over a narrower range for acoustic tuning and subtle response shaping.Noise suppression. Graphic equalization can effectively minimize tape hiss, stage rumble, wind noise, microphone popping, excessive sibilance, and other sources of unwanted noise.2-channel configuration. In a compact 2U unit the Q2031B offers completely independent 2-channel control from input to output, with separate 31 band equalization and variable high pass filters for each channel.Outstanding audio performance. A graphic equalizer's main function is to modify frequency response without adding unwanted distortion or noise. The Q2031B features exceptionally quiet operation with less than 0.05% total harmonic distortion. Noise levels are maintained below -96 dB, with a smooth, natural sound that is compatible with digital sources.Variable high-pass filter. High pass filters are useful in minimizing low-end boominess, AC hum, wind noise … generally preventing subsonic components from muddying the sound as well as wasting amplifier power. The Q2031B incorporates continuously variable high pass filters on both channels, providing 12dB/octave roll-off below any frequency from 20 Hz to 200 Hz.Balanced +4 dB 1/4" phone jacks and balanced XLR jacks are provided for both input and output. This provides direct connectivity with a wide range of professional audio equipment.Peak indication and muting. Independent peak indicators for each channel light when the output signal reaches 3 dB below clipping. An automatic muting circuit mutes the equalizer's output for approximately 3 seconds after the power is switched on, to prevent transients from damaging amplifiers and speaker systems.Bypass. EQ ON/OFF switches provide one-touch EQ bypass and instant comparison between the equalized and unequalized sound. LED indicators let you know when the EQ is on.Rugged 19" rack mountable design. The Q2031B is ruggedly constructed to withstand the rigors of use on the road, and can be mounted in any standard 19-inch rack.Acoustic tuning. Graphic equalization is the standard method for fine tuning a sound system to match the acoustics of a studio, concert hall, or any other acoustic environment. It can be utilized to compensate for acoustic irregularities in rooms that were not designed for music listening, and deliver optimum response in properly designed studios or halls.Feedback control. In situations where size and placement restrictions make a feedback-proof setup impossible, a graphic equalizer can be used to reduce the gain at problem frequencies in order to minimize the possibility of feedback.Sound shaping. Graphic equalizers are also creative tools that can shape the sound of an instrument or voice to achieve a better blend in the mix. Added to reverb, EQ can be used to simulate a wide range of acoustic environments. 2. A fully serviced extremely rare, highly desirable and in very short supply Yamaha F-1030 three-way mono Electronic Crossover (photos 11-to-14, $599) Irrespective of its warm and full bodied sonic attributes, hands down the F-1030 is perhaps one of the sleek looking specimen amongst the hi-fi's chosen few in all shape & form ever rolled out of the assembly line back in the day. You'll be hard pressed not to own an almost unattainable, most coveted highly desirable Yamaha legacy to date. The F-1030 model definitely is a pure gem find remnant from the time when the universe was once revolved around analog domain and the ubiquitous "ones and zeros" of its day were simply kindergarten material in audio world. Prior to posting, This timeless neo-classic design F1030 showcased here was literally just sitting on the shelf display inactive, almost suspended in a time capsule since the Reagan administration. Up until recently it has gone through a barrage of tests and endless hours of complete general check up which included but not limited to, buffed, detailed clean every crevice and every line, deoxit, lubricate all pertinent moving mechanical parts to ensure proper contact with some, rewiring and retouchings involved in the refurbishing process. Bench tested and given a good bill of health! all buttons, controls and settings orderly function without a hint of flaw ready to put back into service once again by a deserving future owner, audiophiles, niche analog enthusiasts and purveyors of all things unique. It may take you another generation seeking to acquire a Yamaha's finest in this state of condition. The opportunity presents itself to just own it..buy it simply for style, nostalgia or for posterity, but don't deny yourself from acquiring this Vintage Transistorized piece of history that its relevance continues to persist almost in full circle today. Conversely, It is an investment that is worth the "Wait" in gold! 3. Crown/Amcron VFX-2A two-way stereo electronic crossover (photos 15-to-19, $999, refurbished) 4. One-of-two thoroughly checked and perfectly working order Ashly sc-80 mono four-way electronic crossover (photos 20-to-23, $599) Both being equal, the first buyer is given precedence of choice from the two units...either color blue or black version. Choose wisely! Plus: Furman TX-3 (last image), Electrovoice DMC-1122a, Rane etc. Inquire for details if interested. Like any other vintage gear, some traces of inconspicuous or obvious wear is almost expected. Shipping and handling may vary on location. Like any other vintage gear, some traces of inconspicuous or obvious wear is almost expected. Shipping and handling may vary on location. POST SCRIPT: Ideal for serious incurable collector or purveyor of all things analog, unique and in short supply with intent to build a showroom, I would consider to sell to the eligible buyer, a one in a life time find of some of the rarest extremely sought after cornucopia of Vintage, DJ, A/V and Pro gears in single Collection anywhere. Exceeding 3 decades of tracking down and literally thousands of man hours invested in refurbishing, restoring, repairing these amazing electronic wonders to accumulate such magnificent concentration of historical analog importance you've ever seen!Some are new, used and few are part of my on going passion in what I do. Nonetheless, all has given equal meticulous attention and care to arrive in the integrity they once were and will be hard pressed not to admire aesthetically. I baby all my gears more than anyone I know :-)) and pictures don't do justice but reflect what you see.There simply is too much too itemize at once as I continue to build up the inventory list and pertinent details of what's included in the sale, item condition that will be revised as it becomes available and selling price will be adjusted accordingly. Included but not limited to are Teac x2000r reel to reel, Otari 5050 reel to reel, Fostex and other open decks. Over 30 amplifiers in the like of Crown dc300 mkII, D-75, D-150, Carver TFM-55, 35, SAE amps, Yamaha P2200, 2001. Marantz 2285, 2235, Revox integrated amp, Revox turntable, processors, DBX, Audio Control, Ashly, Nakamichi, Klipsch, Tascam and much much more! Too much to list.