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🙋🏻‍♂️ Welcome and foreword

Hello dear musician friend and welcome to my Reverb Shop! I am glad that you are interested in this article. Be sure that each of the instruments offered is in very good and tested condition. Everything comes from my private collection and is treated with a lot of love and passion.

I am aware that I am one of the higher-priced providers, but I really try very hard to present the devices very transparently and also to make you, the buyer, happy. The packaging of an item takes me between 2-4 hours because I double and triple secure everything to ensure carefree transport. The quality of the instruments and my work is my number one priority! I am always available if you have any questions. I hope you enjoy reading the description.


🎹Information about the item for sale

I am selling a legend among the Synthesizers. The Arp Quadra, is in a very good condition and can be used immediately. Full checked and full working.. it is really a very well-preserved device! Potentiometer and contacts have been cleaned. It has been extensively tested and everything works perfectly! 

⚙️Specs

The ARP Quadra was a 61-key analog synthesizer produced by ARP Instruments, Inc. from 1978 to 1981. The machine combined pre-existing products: the Omni, Odyssey, a Solina-esque string synthesizer unit, a phaser and a divide-down organ with ADSR envelope, and a 4075 24 db low pass filter into one box. It has four sections. Bass is on the bottom two octaves, has two unison bass circuits (electric and string), with AR and a single pole low pass filter and a related AD envelope for cutoff. A string section is similar to the ARP Omni. Poly Synth, and a two voice Lead Synth similar to the Odyssey and a five way mixer with four unit outputs, a stereo pair, a line mono and an XLR out.

There are 16 memory locations, but these do not provide storage of slider settings. The synthesizer's 8048-based microcontroller uses battery-backed CMOS SRAM storage[1] to store and recall 16 sets of on/off decisions about which waveforms and modulations are turned on in each of the four sections, and lead intervals. Using LEDs the player is visually directed to the sliders critical to the sound selected but their settings are not updated. This necessary tweaking and fine tuning is the weakness of the Quadra.

Like the Moog Polymoog keyboard, the Quadra was not a true polyphonic. It used divide-down circuits for the Omni-style string section, including ADSR, LFO, filter and VCAs for the Polyphonic Synth section. Both Polyphonic Synth and string sections share the hollow wave button which changes waveforms for both sections.

It has a simple arpeggiator for the lead section and memorizes intervals between the two lead VCOs. Vibrato, LFO and a fast square wave trill can be added to the arpeggiation. There are the two independent portamento rates for each VCO, whether locked together or in interval mode. This is useful in either multiple or single trigger mode.

The top three octaves of the keyboard have a mechanical touch sensor that can either pitch bend or impact brilliance and filter. Unique is the flat pedal feature which allows pedaling to dip individual notes and chords a semitone below so they rise to pitch with the envelope’s attack.

Extensive CV/Gate facilities allow two external sequencers to independently control both the bass and the lead. It is capable of four independent outs, stereo out, mono, and mono XLR but hidden in the quad outs is TRS facility for processing and returning effects on individual parts of the four sections to be recombined with external audio at a built-in mixer, which includes an internal compressor circuit. Like all ARP synthesizers of this series (2800) its true character opens up with selective use of the optional foot pedals.

The Quadra uses the typical ARP orange and black color scheme of the company's later years including the orange leather end pieces and the clean XLR out for DI console recording.

In 2021, Synthchaser released a MIDI adapter for the ARP Quadra.

I would really appreciate it if you read everything :) More information about buying from SynthFreak!
Take a look at my other offers, if you buy several devices, a much better price is feasible :)

📹 Video before & after the purchase

Any interested party will be happy to receive a video of the instrument on request. Pictures say more than 1000 words but a video probably even more! So that you can get a better picture of the device on offer, I offer all my interested parties a video of the device. Every buyer also gets a video of a detailed check UP before shipping. So you can look forward to your device even before it is shipped and received and you already have a first glimpse of your new instrument. If I notice during the check that something is not working properly, the device is immediately handed over to my technician for repair.

💲Prices

It is very important to me that my devices come into good hands! If you can't spend that much money right now, due to the current economic situation regarding the pandem.. In all of my offers, I offer the option to send me a price proposal. If you are really interested, just send me an offer, if this is possible, I will of course accept your price proposal.

⚠️INFORMATION

All my synthesizers and keyboards come from my private collection, which is constantly updated. All devices are thoroughly cleaned, disinfected and tested! Every device that is for sale is taken from my collection and already wrapped in foil to avoid dust deposits and other soiling.

📦SECURE PACKAGING

It is very important to me that you as a customer are satisfied, and that your ordered instrument is intact and in top condition arrives at you. I attach great importance to safe packaging because you never know how the parcel delivery service will handle the parcel. For this reason, I pack every instrument in a very safe way so that everything arrives undamaged and we are both satisfied. Take a look at my "SECURE PACKAGING" now! Every instrument is packed exactly this way, you can find pictures in the picture gallery.

💢Shipping during pandem.

Due to the pandem. it has become much more difficult and expensive to send parcels abroad! Since the pandem. measures change regularly, I always look for the best, fastest and safest shipping service for you so that you receive your instrument on time. With me you can be sure that you will receive your package even during the cov. pandem.

⚡Power and connection

My instruments come from the EU, so the power cable is also equipped with an EU plug. If you live in a non-EU country, it is possible to use different adapters for the power connection. It is also often possible to set the transformer to the voltage of your country, or you simply use a current transformer which is often offered on the Internet for 30-50 €.

✅ Animal-free and non-smoking household💯Your advantages:

✅ Worldwide insured shipping

✅ All necessary export papers for foreign countries

✅ Fast processing

✅ Tested & cleaned devices

✅ Secure payment

✅ Verified seller

⛔What are you waiting for!? Your instrument is just a click away from you ;)

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Listed2 months ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • Quadra Polyphonic Analog Synthesizer
Finish
  • Black / Orange
Categories
Year
  • 1978 - 1981
Made In
  • United States
Number of Keys
  • 61 Keys
Keyboard Action
  • Synth Action
Analog / Digital
  • Analog
Key Size
  • Full Size
Polyphony
  • 64 Voices

Product safety information may be available here.

SynthFreak!

Duisburg, Germany
Joined Reverb:2020

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