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It offers a natural harmonic presence that creates a purely musical experience with the characteristic tonal richness of Margules. It is made for lovers of hi-fi, mixing premium components and materials with an aesthetic, sober and contemporary design.

 

In addition, its high functionality allows it to be easily coupled to a multi-channel system to ensure a warm sound.

 

The SF-220 30TH easily drives any tube or solid state amplifier without audible interactions or loss of audio quality, keeping the qualities of the Margules sound intact.

ANA® (Neuro-Acoustic Alignment) Circuitry

 

 

The ANA® technology (Neuro-Acoustic Alignment) is one of Margules’ technological innovations developed from a fundamental principle: the human brain perceives sound by prioritizing the harmonic structure above fundamental tone; that is, it focuses on how humans perceive sound and not on how we measure it.

 

This technological advance originates from the seductive sound theory (engaging sound) and is based on the way in which our brain decodes the information from the sound waves through the ears: when sounds are closer, they keep us focused due to the relation between perception and sound, the distance at which we perceive them and their intelligibility, whereas distant sounds, even when intelligible, do not catch our attention and are easily ignored.

 

Our ANA® technology is designed to achieve a realistic sound, with a wide frequency response, low distortion, and accurate harmonic reproduction, optimizing to the utmost the relationship between the source and the receiver, so that you can enjoy your music in a way you have never experienced before.

TECHNOLOGY AND SPECIFICATIONS

The SF-220 30TH Preamplifier has a circuit that integrates the output stage with the input stage to obtain an unusually high-frequency response and transient speed. This resolves the signal with great instrumental detail full of tonal richness and achieves an output impedance. Capable of smoothly driving any solid-state or tube amplifier without audible interactions or loss of audio quality.

 

Our SF-220 30TH features beautiful wood carved remote control. All operations on this preamplifier are performed with gold-tipped electromagnetic relays, plus it features a motorized potentiometer to maintain the integrity of the analog signal. The gold PCB plate stands out among its Premium components, which guarantees maximum conductivity and audiophile-grade elements that help give the characteristic sound.

 

The power supply in this equipment is of the SHUNT type. As it does not have a control loop circuit, this type of source does not induce harmonics, thus maintaining the integrity of the audio signal.

 

The SHUNT source is virtually indestructible thanks to its carefully designed circuitry to guard against common and uncommon bulb failures.

 

 

NEURO-ACOUSTIC ALIGNMENT (ANA®)

 

The ANA® technology (Neuro-Acoustic Alignment) is one of Margules’ technological innovations developed from a fundamental principle: the human brain perceives sound by prioritizing the harmonic structure above fundamental tone; that is, it focuses on how humans perceive sound and not on how we measure it.

 

This technological advance originates from the engaging sound theory and is based on the way in which our brain decodes the information from the sound waves through the ears: when sounds are closer, they keep us focused due to the relation between perception and sound, the distance at which we perceive them and their intelligibility, whereas distant sounds, even when intelligible, do not catch our attention and are easily ignored.

 

Our ANA® technology is designed to achieve a realistic sound, with a wide frequency response, low distortion and precise harmonic reproduction, optimizing to the utmost the relationship between the source and the receiver, so that you can enjoy your music in a way you have never experienced before.

 

 

Frequency response: 5-400 khz

Total harmonic distortion: <0.014% max

Maximum output level: 30 v

Signal to noise ratio: >80db

Gain: 6 dB

Raise time: 6 micro sec.

Fall time: 6 micro sec.

Power consumption (max): 55 w

Weight: 14kg

Dimensions (height, width, depth): 13.6 cm x 44cm x 3 cm

PRESS

WARRANTY

Like all the Margules products, the SF220 30TH preamplifier comes with a five-year limited warranty on parts and labor excluding the tubes, which are covered by a three-month warranty.

 

Terms and Conditions

 

The warranty does not cover any damage, wear or malfunctioning caused by lack of compliance with the operation specifications included with this equipment, or any of those resulting from:

 

  • Accidents, natural disasters or events that happens due to natural causes.
  • Misuse, abuse of or negligence regarding the equipment.
  • Fault in the initial set-up and installation, incorrect maintenance, and/or inadequate cleaning of the product.
  • Repairs, modifications, or renovations performed by people or companies not expressly authorized by Margules Audio.
  • Damage during shipping, transport, packaging, or manipulation of the equipment. In this case, all damage claims must be submitted to the carrier company.
  • Any other cause not attributable to a manufacturing defect of the product.

 

The warranty covers exclusively the expense corresponding to labor and the material necessary to the repair or, give the case, the substitution of the equipment (at the discretion of Margules Audio), and thus it does not extend to:

 

  • Accessories, including but not limited to: batteries, cables, mounting hardware, brackets, furniture, cleaning accessories, antennas or dismountable feeding cables.
  • Shipping costs in case the owner needs to return the unit to Margules Audio for the purpose of service or repair of a possible defect.

 

The warranty shall be void if:

 

  • The serial number of the equipment has been altered, modified, or deleted.
  • The product has been purchased from a person or company that is not an authorized distributor of Margules Audio.

 

This warranty extends to products directly purchased from Margules Audio or an authorized distributor.

 

In case of doubt regarding the scope of the warranty or if you need technical support, call the numbers you will find on our website www.margules.com.

MANUALS