Sold!
Description
This product is in excellent, like new condition with all the original components, documents and unregistered software and a 1 year warranty. The product may have an open box or damaged packaging but we guarantee that these products come with everything it came with as new.

The vintage EQ tones you know & love.
The 551 is the only equalizer for the 500 Series actually designed by Rupert Neve. Featuring 3 bands of EQ inspired by Mr. Neve’s most prized vintage designs, along with custom-wound inductors, transformers and class-A gain blocks, the 551 brings the thick, powerful lows and sweet highs of Rupert’s classics to the 500-Series format.

The “Best-Of” EQ
The 551’s 3-band, custom-tapped inductor EQ was inspired by our favorite elements of Rupert’s vintage EQ designs. The low frequency band is designed to produce a creamy, resonant bass response similar to a vintage 1064 – but unlike the vintage modules, the LF band on the 551 can be used as either a shelf or a peak filter, adding punch, dimension, and control to your low end.

The midrange band is based on that of the 1073, ideal for sweetening vocals and instruments while bringing them forward in a mix, and its proportional “Q” response makes it well-suited for minimizing problematic frequencies. The high frequency band is a hybrid vintage / modern design, blending inductor circuitry with capacitor-based topologies to achieve vintage tones with enhanced control. The High Pass filter is a 12dB/octave design with a fixed 80Hz frequency, and can be used in tandem with the low frequency EQ to add low-end presence without clouding the source material.

As with Rupert’s most prized classic designs, each EQ section uses low-feedback, class-A discrete electronics to prevent low-level artifacts and harshness from detracting from the tonal shaping. However, this new circuit is a decidedly modern design with updated techniques and components that were simply not available 50 years ago, and is definitely not a “clone”.

What Are Inductors?
Inductors are wires wound around a coil that provide a form of frequency-dependant resistance. When they saturate, they bring out beautifully musical harmonics that give your tracks the smooth, polished sound that has made Rupert’s consoles and equipment so desirable for over fifty years. This is what makes them different from capacitor-based EQ designs, which do a great job at surgical equalization. But inductors provide the tone.

While it is certainly possible to create a functioning EQ using off-the-shelf inductors, we choose to use our own custom inductors for the 551. This attention to detail in controlling variables such as the winding and core materials in relation to the surrounding circuitry allows the 551 to capture the vitality and personality of Rupert’s classic designs.

NOISE
  • Measured at Main Output, un-weighted, 22Hz-22kHz, source impedance 40 Ohm balanced.
  • Better than -102 dBV

FREQUENCY RESPONSE
Main output, no load: +/- 0.1 dBu from 20 Hz to 31.5 kHz, -1 dB @ 120 kHz

MAXIMUM OUTPUT LEVEL
23.25 dBu

TOTAL HARMONIC DISTORTION AND NOISE
  • @ 1 kHz, +20 dBu output level, no load: Better than 0.0025%
  • @ 20 Hz, +20 dBu output level, no load: 0.13% Typical (2nd and 3rd harmonic)

HIGH PASS FILTER
  • -2.7 dB @ 80 Hz
  • Slope: 12 dB/Octave

NOISE
  • Measured at Main Output, un-weighted, 22 Hz - 22 kHz, source impedance 40 Ohm balanced.
  • Better than -94 dBV

FREQUENCY RESPONSE
Main output, no load: +/- 0.25 dBu from 20 Hz to 45 kHz, -2 dB @ 120 kHz

MAXIMUM OUTPUT LEVEL
23 dBu

TOTAL HARMONIC DISTORTION AND NOISE
  • @ 1 kHz, +20 dBu output level, no load: Better than 0.009%
  • @ 20 Hz, +20 dBu output level, no load: 0.13% Typical (2nd and 3rd harmonic)

POWER REQUIREMENTS
  • 120mA on +16VDC
  • 110ma on -16VDC
Chicago Music Exchange

Chicago Music Exchange

Call
Rupert Neve Designs
Mint
17 Years
Chicago Music Exchange
Chicago Music Exchange
773-525-7773
Chicago, IL
9:21 PM
Monday-Saturday 11 A.M. to 7 P.M. Sunday 11 A.M to 5 P.M.

Payment Terms - Orders Internet orders may be paid for using the following methods: VISA, MasterCard, American Express, Discover, and PayPal. For phone or mail orders you may pay money orders and cashier's checks by mail. Just call us at 773-525-7773 to place your order. All non-credit-card orders are subject to a 10-business-day hold. We do not accept international credit card or PayPal payments from international accounts. For international security reasons, please call the store to arrange a Bank Wire: +01-773-525-7773.

Shipping Charges - Taxes and Title Separate charges for shipping and handling will be shown on your order form. As a security precaution, initial orders and orders shipping to alternate addresses may be held for extended verification. We reserve the right to make partial shipments, which will not relieve you of your obligation to pay for the remaining deliveries. All items purchased from Chicago Music Exchange are made pursuant to a shipment contract. This means that the risk of loss and title for such items passes to you upon our delivery to the carrier. The published rates are for US domestic shipping only. Contact us directly if you wish to place an international order. For more information on our shipping policies, including rates, delivery times, and delays, please visit our website at chicagomusicexchange or call us at: 773-525-7773. If applicable, a separate charge for taxes will be shown on the invoice. We are required to collect sales tax on all orders shipped to Illinois.

3-Day / 15-day Return Policy If you are not completely satisfied with any product, return it for a full refund of the product purchase price, full credit, or exchange of your choice. We give you 3 days from the shipping date on Vintage instruments, and 15 days on New instruments. Credit card returns are issued a credit for purchase price. Refunds are made for product value only, excluding shipping and handling charges. New, Unopened items: You may return most NEW, untouched, unopened items within 15 days of delivery for a full refund. if the return is a result of our error (you received an incorrect or defective item, etc.) we'll also pay the return shipping costs. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. Vintage, Used items: We have to evaluate vintage and used guitars, amps, and other items on a case by case basis. We spend a lot of time with you and the item before your purchase to try to avoid any surprises after your purchase. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. You should expect to receive your refund within four weeks of giving your package to the return shipper, however, we strive to issue your refund sooner. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). Send your return to: Chicago Music Exchange 3316 N Lincoln Ave Chicago, IL 60657 The following items are returnable only if defective OR unopened or unused: strings, harmonicas, microphones, cleaners, polishes, and polishing cloths. Software/soundware, cassettes, CDs, DVDs, and videos may be returned for credit only if they are in their original, sealed packaging. If defective, these items will only be exchanged for the same product. For complete details on our guarantees, shipping, and return policies, please contact our Customer Service Department at 773-525-7773; fax us at 773-525-2775; visit our website at www.chicagomusicexchange.com, or write us at Chicago Music Exchange, 3316 N. Lincoln Ave, Chicago, IL 60657.