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AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2

AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2

Average votes for this product
5.0 / 5
  Based on 9 customers reviews.

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Reference : 4227
New product

24,92 €tax excl.

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Shipping date: 26-10-2020.

Orders placed before 11AM (GMT+1) will be shipped the same day (working day).

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More info

The AUDIOPHONICS 4227 V2.2 module is used to buffer and amplify a stereo signal independently and qualitatively.

A simple transformer 2x15V low power can feed it.
Semi-scalable design, this card incorporates 2 OP AMPs operational sockets mounted on sockets to be upgraded at will.

They are supported by a power supply consisting of 2 "Great supply" capacitors each of 2200uF / 20V and 4 NICHICON NRSZ 220uF / 35V supported by several MKP capacitors.

Characteristics :

  • Connection of Inputs / Outputs by terminal blocks (CN1 input - CN2 output).
  • Signal input by 3-point connector
  • Board supplied bare, assembled and ready to be powered (Power supply from a 2X15V transformer)
  • Adjustable LM317 / 337 controllers
  • 2 AD OP275 Operational Amplifiers on DIP8 Interchangeable Media

Specifications:

  • Default Gain: 18dB (modifiable)
  • Input impedance: 100-130kohm
  • Power Supply: 2X15V Transformer
  • Dimensions: 130 x 53 x 45mm (L x W x H)
  • Gain adjustable by means of DIP switch present in the middle of the PCB (x1, x10, x30)
  • Weight: 240g

[Img-25265-left-thickbox_default]
[Img-25266-left-thickbox_default]

https://www.audiophonics.fr/images2/4227/4227_module_1.jpg

OPTIONAL: Photo with capacitors and potentiometer of mounted

https://www.audiophonics.fr/images2/4227/4227_module_4.jpg

- Technical drawing -

https://www.audiophonics.fr/images2/4227/4227_PRE_V2_SCHEMATIC.jpg

 
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Average votes
5.0 / 5
9 reviews
Why write products reviews ?
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Note :
 5/5
Date :
Simple and versatile with high quality parts
I use this buffer combined with two Mundorf mcaps, a 10K ALPS blue pot (I know that a 50K pot is recommended but I has this pot already), and a 50VA toroidal transformer to drive an Audiophonics HPA-S250NC power amplifier. It is placed between the amplifier and an old Parasound 1100/HD DAC. Great improvement in dynamics, bass extension and imaging, against a passive pot used before. Highly recommended.
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This review has been posted for AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2
Note :
 5/5
Date :
Genial
Je me suis monté un dac preampli, branché a un module dac sabre.
Je souhaitais tester et je suis renversé! Niveau son Ca joue dans la même cour que mon dac rme a 1000e(Sans les nombreuses options de ce dernier indispensables en studio)
Je n ai pas changé les aop, n en ai nullement ressenti le besoin a vrai dire, cablé en xh avec les cable audiophonics a embout plaque or et a un potentiometre alps 50k c est vraiment impressionnant (surtout à la vue du budget...!)
Merci audiophonics de proposer cette qualité en diy!
 (0)
 (0)
This review has been posted for AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2
Note :
 5/5
Date :
préampli très efficace, je lui ai connecté deux condensateurs et un potentiometre alps 50k.
Nécessite des cables de bonnes section sur le xh, j'utilise ceux vendus par audiophonics avec embout plaqué or.
son très équilibré, gain, impressionnant quand réglé au maximum, très beau produit a un prix ridiculisant toute concurrence. Je n'ai pas essayé de changer les aop, car ils me semblent de très bonne facture.
 (0)
 (0)
This review has been posted for AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2
Note :
 5/5
Date :
carte buffer correspond a mon besoin avec différents gains
dommage manque dans le pack les cables de modulation ( les fils )
 (0)
 (0)
This review has been posted for AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2
Note :
 5/5
Date :
Buffer module is very versatile. I use it with potentiometer alps (50kohm) and Mundorf capacitors as preamp for a power amplifier TA2022. It makes the sound more clear and increases the dynamic range. Recommended.
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AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2
AUDIOPHONICS Module Buffer Stéréo AOP OP275 V2.2

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