The QR-2 Is a line noise suppressor designed especially to work along with the Margules and Magenta equipment and can also protect equipment of any brand connected to it.

The QR2- by cleaning the line noise, lets the equipment connected to it give a more natural,  softer, detailed and dynamic sound.

The QR-2 contains three independent filters to insulate from line noise each section and it allows o switch off the equipments connected to it remotely.





El purificador de línea QR2 es el complemento idóneo para el sistema Margules U280 + Sf220, ya que al reducir el ruido de la línea de alimentación y por ende mejorar el desempeño del equipo, le da comodidad y versatilidad, ya que con el control remoto del pre se pueden prender o apagar el U280 y equipos alternos.

Para reducir el ruido y proteger los equipos utiliza autotransformadores y filtros LC, que por sus características atenúan transitorios que pueden venir montados en la línea así como ruido de alta frecuencia.

El QR2 por ende mejora el desempeño de los equipos permitiéndoles que reproduzcan la señal musical y evitando ruido que modifica la estructura armónica, y así lograr un sonido más detallado y cálido, esto aunado a que protege los equipos y aumenta su tiempo de vida.

El QR2 tiene tres filtros independientes, que su alimentación de uno de ellos es directa y dos son conmutados, los conmutados se encienden al polarizar la salida de ac del preamplificador o al conectarse directamente la entrada de conmutación a la línea. El filtro directo es para el preamplificador y los conmutados son para equipos analógicos y otro para digitales, esto evita la inducción de un equipo al otro modificando así la estructura armónica del sonido.



Filtro no conmutado

2 salidas con capacidad Total de 250 Watts

Filtro Digital conmutado

4 Salidad con capacidad total 500 Watts

Filtro Analogico

4 Salidas con capacidad Total de 700Watts


MARGULES products are designed and manufactured to last. MARGULES GROUP MEXICO S.A. DE C.V. guarantees free services (exceptions may apply) and spare parts in any country in which an official distributor of MARGULES operates.




For more information, contact the relevant national distributor.

This warranty complements any national or distributor legal obligations and does not affect your statutory rights as a customer.

This warranty:


It is only valid for products purchased through an authorized MARGULES retailer or distributor.

It is valid only for original products. MARGULES will not return any products you receive for repair if it is determined to be a counterfeit. The sale and distribution of counterfeit products is illegal. It takes effect from the date of purchase and is valid for a period of five years for passive and electronic speakers, one year for amplified speakers, electronic components of wireless reception and digital conversion and 90 days for spare parts (bulbs), with the exception of exclusions applicable in certain countries in accordance with their national laws. Request detailed information from your country’s MARGULES dealer.

It is limited to repairing the equipment (which could be fixed or replaced at our discretion, without affecting the original warranty). The warranty does not cover transport or other costs, nor do it cover risks for the transfer, transport and installation of the products.


It is only valid for the original owner. It’s not transferable.

It will only be valid if they are defective or manufactured materials existing at the time of purchase, and will not be valid in the following cases:

  • Due to the deterioration of the parts of its components, which are worn or depleted with use, such as bulbs, sleeves and remote controls.
  • Due to interoperability issues with third-party products, unless this purpose is explicitly expressed.
  • Due to damage resulting from incorrect installation, connection or packaging.
  • Due to damages caused by any incorrect use described in the instructions, negligence, modifications or use of parts that have not been manufactured or authorized by MARGULES GROUP MEXICO S.A. DE C.V.



  • Due to damage caused by defective or inappropriate auxiliary equipment.
  • Due to damage caused by accidents, electricity, water, heat from fire, war, public disturbances or other causes beyond the control of MARGULES GROUP MEXICO S.A. DE C.V. and its official distributors.
  • For products whose serial number has been modified, deleted, deleted or unreadable.
  • If repairs or modifications have been carried out by unauthorized persons.


How to request warranty repairs

If you have any questions about the performance of your product, perform the following procedure:


Call the MARGULES dealer in your country of residence. In case of Mexico call MARGULES.

You will find your contact details by clicking “margules.com” at the bottom of the page and selecting the relevant country.

Our representative will clarify all your doubts. If it is necessary to return the product for repair, you may be given a return authorization for the goods. You must not return the product without this authorization, in case it is obtained.


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