SKU: 70553024954

Rupert Neve Designs 551 Inductor EQ

Sale price$72310.50 Regular price$80345.00
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Description

Rupert Neve Designs 551 Inductor EQThe 551 Inductor EQ from Rupert Neve Designs is a three band EQ with custom wound inductors, transformers, and class A gain blocks. The low frequency 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 551's inductor midrange band is ideal for sweetening vocals and instruments while bringing them forward in a mix, and its proportional "Q" response makes it well suited for minimizing

The 551 Inductor EQ from Rupert Neve Designs is a three-band EQ with custom-wound inductors, transformers, and class-A gain blocks. The low-frequency 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 551's inductor midrange band is 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 12 dB/octave design with a fixed 80 Hz frequency, and can be used in tandem with the low-frequency EQ to add low-end presence without clouding the source material.

Both the high and low band can be switched from shelf to peak curves and offer 15 dB of boost or cut. The high band can be switched from 8 to 16 kHz, and the low band can be selected at 35, 60, 100, or 220 Hz. The inductor-based mid band offers six center frequencies: 200, 350, and 700 Hz, and 1.5, 3, and 6 kHz. The mid band also has an "MF Hi Q" switch to narrow the bandwidth (increase the Q) of the filter.

Engages all bands of the equalizer except the hpf
Adjusts up to 15 dB of boost or cut at selected low, mid, and high frequencies
Four different EQ curves to finesse the high-frequency content
Peak mode utilizes an inductor and capacitor circuit to create the bell-shaped curve
MID FREQ rotary switch has six positions to select the center frequency of the mid-band EQ stage: 200, 350, and 700 Hz, and 1.5, 3, and 6 kHz
Engages a 12 dB per octave high-pass filter set to 80 Hz
Four LOW FREQ options: 35, 60, 100, and 220 Hz
UPC: 752423657193
In the Box
Rupert Neve Designs 551 Inductor EQ
  • Limited 1-Year Warranty
Noise Equalizer Bypassed: Better than -102 dBV (measured at Main Output, un-weighted, 22 Hz to 22 kHz, source impedance 40 Ohms balanced)
Equalizer Engaged: Better than -94 dBV (measured at Main Output, un-weighted, 22 Hz to 22 kHz, source impedance 40 Ohms balanced)
Frequency Response Equalizer Bypassed: +/- 0.1 dBu from 20 Hz to 31.5 kHz - 1 dB @ 120 kHz (main output, no load)
Equalizer Engaged: +/- 0.25 dBu from 20 Hz to 45 kHz - 2 dB @ 120 kHz (main output, no load)
Maximum Output Level Equalizer Bypassed: 23.25 dBu
Equalizer Engaged: 23 dBu
THD + N Equalizer Bypassed:
@ 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
Equalizer Engaged:
@ 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 120 mA on +16 VDC
110 mA on -16 VDC
Exterior Dimensions 10 x 8 x 3" (25.4 x 20.3 x 7.6 cm)
Weight 2.0 lb (0.9 kg)
Packaging Info
Package Weight 2.1 lb
Box Dimensions (LxWxH) 10.1 x 7.7 x 2.9"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 70553024954

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Bio Grl
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★★★★★ 5
Easy to use, perfect small mixer for mornings
Color: Rechargeable with Storage Stand and Box - Black
Comes charged and charges quickly when needed, love the stand and case for the extra attachments, easy to use and clean
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Reviewed in the United States on May 27, 2026
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Kate
Lake Worth, US
★★★★★ 5
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Color: Rechargeable with Storage Stand and Box - Black
I have had many hand-held frothers over the years; hand-held as well as counter top. None of them have really given me the froth that I want which is dense foam to the point that it almost forms "peaks" and needs to be spooned into my coffee. Additionally, the one that I always went back to (hand-held) only lasted for 3-6 months at best before breaking and sometimes it lasted only a few weeks. Additionally, it drained batteries to the point they needed to be replaced every 2-3 weeks. The Circle Joy DOES make thick, dense froth (I use very cold skim milk on the high speed), has 3 speeds and is rechargeable so no more battery issues. Once I froth the milk, I pop it in the microwave for 40 seconds or so to heat/warm it up. It also comes with an attachment for beating eggs as well as an attachment for stirring in protein powders. I don't need the egg beater and I use the low speed to mix in chocolate collagen powder. I just got this frother so reliability is yet to be proven but I figure at $20.00 even if it needs to be replaced every six months ... it is still a winner.
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Reviewed in the United States on May 8, 2026
L
Verified Purchase
Lilly
Fort Morgan, US
★★★★★ 4
Works well, worth buying.
Color: Rechargeable with Storage Stand and Box - Black
Works really well. I wish the attachments were easier to get off without feeling like you are going to break them. I use a butter knife to pry it off carefully. I like having the case too, it works well if you need to travel with it.
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Reviewed in the United States on May 31, 2026
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Jill Maxon
Natrona Heights, US
★★★★★ 5
Little but mighty
Color: Rechargeable with Storage Stand and Box - Black, Color: Rechargeable with Storage Stand and Box - Black
Love this Frother. It stays charged for a good amount of time. The different speed settings are nice. Love the different attachments as they come in handy for multiple options in the kitchen.
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Reviewed in the United States on June 6, 2026
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Sal
Louisville, US
★★★★★ 5
CIRCLE JOY Rechargeable Handheld Milk Frother Wand with Stand
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My wife is very with the product. It does everything as described in the listing. It very powerful and comes with 3 attachments and a stand. Love the rechargeable convenience. Cleaning is a snap. Highly recommend it.
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