Preamplificator Esoteric GRANDIOSO S1

In music and the pleasant sense of unity, and listeners to forget the presence of audio. The music of beauty, the player of hot air, realism of unparalleled sound the air feeling of the Hall, unleashing the truth, it is born by the margin of the output wattage of the power amplifier. Including the powerful power supply unit, high power resulting from overwhelming amount of input. Inherit the spirit of the mono-block M1 faithfully, stereo machine S1 of esoteric highest peak, to unleash all of the sound, tells the music for uplifting the life feeling rich.

Impedance of the speaker, with a change of the frequency to be reproduced, have been rapidly changing. Percussion of shock and immediately after the silence, such as bass consecutive impedance is rapidly lowered, it is also not uncommon for close to a no-load situation is born. Against these drastic changes of the load situation, if there is no current supply capacity to always follow the linear, you can not be as possible to express the dynamics of the music. S1 was prepared by adding the maximum amount to the power supply unit that becomes the source of the current supply capacity, from 8Ω load 150W up to 600W at the time of 2Ω load, achieving a power linearity of the theoretical value as expected. It will faithfully reproduce the dynamics of the music at any volume level.

It is a powerful power supply unit that has dictated the excellent power linearity of S1. Especially power transformer, the most important factor that determines the sound quality of the amplifier. "Good amplifier of sound transformer is good" group of the firm belief that, core size from the material, ranging from how to mount, You are custom specifications that gather the know-how of the esoteric. Employs a large toroidal core of 2180VA to support the overwhelming power, to be independent of the left and right channels from the winding, it is possible to mount the rigid base portion made of the interior of 5mm steel plate, we are pursuing a pure sound quality without limit . In addition, Bear mount (no case) By the specification, also considered to slight degradation of sound quality due to the case. Capacitors, dual-mono configuration in 4,700μF × 3 parallel to each channel of the power supply unit. Charge and discharge time were high-speed reduction, to pursue a no firm quality loose. Wiring of the power supply unit does not use the connector, all connected to the thick cable with a bolt, it was honed to a low impedance.

It is fed music data that has been converted to a current speaker, and to drive the speaker units. Speaker drive mechanism of the amplifier is very simple, but to only handle up to large current from the weak current, and faithfully to always music signal, making a precise drive, can be thought of as a daunting task. In order to increase the amplifier of drive capability, it is necessary to devise to reduce the output impedance of the amplifier to the limit. S1 as the approach for the low impedance, use the nine bus bar for each channel at all stages, such as eliminating the coil of the output stage, introduce various know-how. Simple and I was extremely wide range of circuit design. As a result, in the DF (damping factor), also said that the guideline value of the woofer drive capability, to achieve the astounding figure of 1000. large diameter woofer that driving is difficult also accurately braking, the massive plenty of to the lowest frequency, and you will be able to play accurately.

When the power amplifier design for performing signal amplification, has been careful consideration to the reduction of noise. Receiving the signal at the input buffer amplifier balance design, and low impedance balanced signal transmission path to the amplification stage. Removing the common mode noise, and is possible to be less affected by noise in the signal path, until the amplifying stage keeping the purity of the signal transmission, and has obtained a good S / N sense. Dynamic range on the overwhelming auditory born by clean signal amplification with no noise, promises a big impression on more than numerical value on the spec. S1 is not only dynamic representation of the high-power amplifier unique, the gradient is between the music of climax and tranquility, are also combines exquisite delicacy to more finely represented.