Audio Analogue "Absolute Preamplifier" - Zero Feedback Line Preamplifier
SKU: 30534723688

Audio Analogue "Absolute Preamplifier" - Zero Feedback Line Preamplifier

$18674.55 $20749.50
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Description

Audio Analogue "Absolute Preamplifier" - Zero Feedback Line PreamplifierInductive power supply to minimize main noise and two transformers of about 50W with electrostatic shielding, magnetic shielding and resin coating. Zero global feedback from input to output. Fully differential circuit (differential input and differential output). Each stage is on separate boards and in fully dual mono configuration from the power supply. The preamp boards are mechanically shielded from the power supply section. Relay volume control

Inductive power supply to minimize main noise and two transformers of about 50W with electrostatic shielding, magnetic shielding and resin coating.

Zero global feedback from input to output.

Fully differential circuit (differential input and differential output).

Each stage is on separate boards and in fully dual-mono configuration from the power supply.

The preamp boards are mechanically shielded from the power supply section.

Relay volume control that compared to semiconductor controls provides a significant improvement in distortion due to the quality of the resistors used compared to those that can be produced inside a semiconductor.

Relay input switches to minimize non-linearities and disconnect unused inputs.

Stage of gain with property structure SeGeSTA.

Oversized traditional mounting military resistors to minimize thermal distortion.

Audiograde capacitors.

Three stereo RCA inputs.

Two balanced stereo inputs.

Two stereo RCA outputs.

Two XLR stereo outputs.

Managed by a microcontroller.

Internal wiring and power cable Airtech.

Technical

Specifications

Number of Channels
2
Input impedance
47 kΩ
Gain
Unbalanced output
5,58 dB
Gain
Balanced output
11,62 dB
Frequency Response
Attenuation 0dB, -0.5dB band
200 KHz
Balanced Output Noise
Band limits 20Hz-80kHz
20.4µV
Balanced Output Noise
A-weighted
7.7µV
Signal/noise ratio (SNR)
Attenuation at 0dB, A weighted, referred to 1Vrms
93.8dB(20Hz – 80kHz)
Signal/noise ratio (SNR)
Attenuation at 0dB, A weighted, referred to 1Vrms
98.3dB(20Hz – 22kHz)
Signal/noise ratio (SNR)
Attenuation at 0dB, A weighted, referred to 1Vrms
102.3dB(A weighted)
Stand-by power consumption
230VAC
0.7W
Dimensions
HxWxD
140x480x385mm
Weight
22kg
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: 30534723688

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4.3 ★★★★★
Based on 259 reviews
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Product Reviews
S
Verified Purchase
Susan Mather Barone
West Palm Beach, US
★★★★★ 5
Three froth/blend options, rechargeable, comes with container
Color: Rechargeable with Storage Box - Silver, Color: Rechargeable with Storage Box - Silver
I watch a gentleman online who always talks about how in his 40 years he didn’t know x, y, z, and ends with “ain’t no way.” He made this 3-ingredient — 4 with ice— iced coffee, and used a handheld frother, so after shopping for ingredients, I went in search of a frother. What I liked about this one is that it’s not battery operated, but instead is rechargeable. It comes with three attachment, one of which I can use for cake batter, whipping up eggs, making homemade whipped cream, and also sauces and gravy. It also has a case so I am storing it with my coffee paraphernalia. It has three settings and I used the high setting. As you can see it really froths up the ingredients. I’m very pleased with my purchase and thought about all the times I need a slurry of water and cornstarch to thicken soups and stews. I don’t know the charge life yet, but so far, so good. What you see in the cup is 2 tablespoons of sweetened condensed milk, 3 teaspoons of instant espresso, and 2 ounces of water. Then you add the ice and your creamer, half-and-half, or barista lover’s oat milk, and you’re done. Not too bad, as my grandpa used to say.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
N
Verified Purchase
Nancy Byrd
San Leandro, US
★★★★★ 5
Great product
Color: Rechargeable with Storage Box - Black
It’s great! Very powerful, even on low speed. Mixes fiber, and powdered mix-ins very well as well as frothing milk. Nice sturdy little case to keep the components in. Stays charged for a long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
B
Verified Purchase
Bio Grl
Phoenix, US
★★★★★ 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
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kate
Houston, US
★★★★★ 5
Best Hand-Held Frother EVER
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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
L
Verified Purchase
Lilly
Bozeman, 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026

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