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AMPLIFICATORI INTEGRATI Telefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


PURE SOUND  A 10     €. 1.070,00           Per offerta  TELEFONA / E-MAIL

Amplificatore integrato a valvole 10W per canale, Classe "A "

The A10 is a new, small line integrated amplifier from puresound. Operating in Class A and delivering 10 Watts per channel it is intended for users of high sensitivity loudspeakers or for those seeking high performance with small speakers perhaps in a bedroom or study. The A10 accepts two line level inputs and may be switched to drive 4 or 8 ohm loudspeakers. The circuit is based around the sweet sounding 6P14 a modern equivalent to the EL84/6BQ5 family.The A10 has earned Best Buy awards in the UK and Russia and has just won a 'Golden Ear' award for best amplifier in Germany's 'Audio' magazine

PURE SOUND  A 30     €. 2.295,00           Per offerta  TELEFONA / E-MAIL

Amplificatore integrato a valvole 30W per canale

The puresound A30 amplifier was developed to meet the demand for an affordable Class A amplifier that would be compatible with all types of loudspeakers. The A30 is a line level integrated design that allows for the selection of up to 3 different source components and control of the volume by a high quality ALPS Blue Velvet potentiometer. Class A operation was chosen because it gives lower distortion and a more relaxing, natural sound

PURE SOUND  2A3     €. 3.365,00           Per offerta  TELEFONA / E-MAIL

Amplificatore Integrato a valvole 18W per canale, Classe "A

The earliest audio amplifiers made use of small, 3 element valves known as directly heated triodes. For many, the simple circuits that can be built around such devices better preserve the structure, colour and feeling within the music than any other circuit topology. One of the best sounding triodes, the 2A3, is in production again and its characteristic linearity has been employed in a novel configuration to create a particularly charming amplifier. The puresound 2A3 is an 18 Watt per channel line level integrated design that allows for the selection of up to 3 different source components and control of the volume by a high quality ALPS Blue Velvet potentiometer. There are many amplifiers now making use of directly heated triodes but few which adequately address the particularly awkward issues involved in driving these devices properly. The puresound 2A3 amplifier features an unusual choke loaded driver stage which allows the 6SN7 driver valves to deliver the full measure of signal to the push/pull output valves. This rather exotic configuration usually results in a tremendous depth to the tone of instruments and the puresound 2A3 is no exception in this regard.  Very high quality components are used throughout including selected carbon film resistors and SCR polypropylene capacitors. The power supply makes use of twin valve rectifiers and choke smoothing. The output can be configured for use with 4 or 8 ohm loudspeakers.


PREAMPLIFICATORITelefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


PURE SOUND  L10     €. 4.130,00           Per offerta  TELEFONA / E-MAIL

Preamplificatore stereo linea a valvole, 4 ingressi. 
  Following the positive response to our flagship L300 pre-amplifier, puresound has developed the L10, a new, more affordable design which incorporates much of the thinking that makes the L300 so highly regarded. The L10 has 4 inputs, a separate passive Record In Record Out loop and two pairs of single ended outputs. The circuit uses output transformers and a sophisticated full valve rectified, twin choke smoothed power supply. It also offers remote control of the volume via a separate handset. In the L10, source selection is via a high quality switch located near to the input sockets. The chosen source is routed to a high quality motorized, film potentiometer and from there on to the audio circuit. This consists of a single ended triode stage loaded by a custom wound wideband output transformer which steps down the amplified signal allowing it to be coupled to the power amplifier at a manageable level and as a low impedance source. The output stage of the L10 is impervious to long interconnecting cables or lower impedance power amplifier input stages.  The L10 also incorporates an extremely sophisticated power supply to maintain constant operating conditions for the audio circuitry. It includes a valve rectifier, and a twin choke filtered LCLC stage which provides a stiff, voltage rail allowing the audio circuit to operate in a calm and orderly way regardless of the demands the music makes on the amplifying stage. Filament supplies are fully regulated to further reduce the potential for noise.


PURE SOUND  L300     €. 8.025,00           Per offerta  TELEFONA / E-MAIL

L300 Preamplificatore stereo linea a valvole, 5 ingressi.

L300 has 5 inputs and twin outputs (2 pairs single ended and 2 pairs balanced via XLR). The circuit uses output transformers and a sophisticated full valve rectified, choke smoothed, regulated power supply including a 300B triode as the series element.  A Line Stage pre-amplifier needs to offer the facility to select between different sources, to provide some means of attenuating the chosen source and then deliver it in an uncorrupted form to the power amplifier. Controlling the Volume In recent times, with the prevalence of digital source components, many audio enthusiasts have adopted the use of passive volume controls incorporating resistive potential dividers and even transformer based attenuators. These are volume controls where attenuation is achieved through the use of tapped transformer windings. On the face of it either of these might appear to offer the purest approach. However, it’s not so simple. Resistive attenuators are generally of quite a high impedance so as not to load the source driving them but in turn confer little drive capability themselves. In some circumstances they can sound quite transparent but it’s a commonly experienced subjective impression, that such attenuators leave the music with a lack of purpose and grip. Long connecting cables may also blunt the high frequency response, a situation which may be worsened by using a following amplifier with low input impedance. Transformer volume controls seem to address the issue of drive capability to some extent, but they have their own problems. A wide bandwidth transformer can be made such that, when using both windings in full, i.e. with no attenuation, it transfers a pretty good facsimile of the source signal. However, as attenuation is applied and the transformer has to transform more and more, difficulties start to arise. By the time significant attenuation is applied, the performance of the transformer no longer looks quite as impressive with differing patterns of resonance being visible at each step. The reproduction of timbre suffers and the sound quality realized alters slightly with each change in level. Auto-formers which attenuate by tapping off a single sided winding have actually proved to be the most transparent passive controls we have tested and yet even they seem to lack a certain something.


PRE PHONO Telefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


 

PURE SOUND  T10     €.  535,00               Per offerta  TELEFONA / E-MAIL

Trasformatore per testine MC a bassa uscita. Ratio 1:18 e 1:36

PURE SOUND  P10     €.  535,00               Per offerta  TELEFONA / E-MAIL

Amplificatore Phono a valvole per testine MM o MC ad alta  uscita. Per testine MC a bassa uscita aggiungere trasformatore  T10


FINALI Telefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


PURE SOUND  M845     €.10.700,00           Per offerta  TELEFONA / E-MAIL

M845 Finali mono da 27W in classe A a Triodo valvole , la coppia

The M845 mono power amplifier is a single ended design based around the 845 power triode. Operating in Class A and giving 27 Watts of output power, it will complement a wide range of medium to high efficiency loudspeakers.  The 845 triode was originally developed by RCA in 1931 as a radio transmitting and audio amplification valve. The anode is machined from solid graphite to allow high power dissipation. It has an extremely linear transfer characteristic. In recent years, a renewed interest in this kind of valve has resulted in them being manufactured again by various factories in China.  Implementing the 845 in a sympathetic circuit which takes full advantage of its capabilities is not straightforward. The filament draws a significant amount of power and also forms a part of the signal path so energising it correctly is a critical part of the design. The valve also operates with very high voltages across it so again, a careful choice of filtering components for that high voltage supply is essential such that adequate current is available to the valve at all audio frequencies instantaneously. In the M845 this supply includes a hybrid Graetz bridge for the initial rectification and a substantial smoothing choke as part of its CLC type filter.  Although all of the elements; power supply, circuit topology & component choice have a profound effect on the overall performance of a valve amplifier, one of the most important aspects is the design & construction of the output transformer. A high primary impedance, the resultant large step down ratio and the need to maintain a high level of insulation between the windings all conspire against the transformer designer and the quest for extended bandwidth with efficient power transmission. The M845 utilises an in house designed output transformer that underwent extensive trials using a variety of core materials and winding techniques before the final configuration was chosen.The other difficulty in using the 845 is in the design of a stage capable of cleanly delivering the voltage swing necessary at its grid to take it to full output. The M845 incorporates a driver stage based on the 6SN7 triode coupled via a custom wound, wideband, interstage transformer. The amplifier’s input stage is directly coupled to this driver meaning that there are no coupling capacitors used in the circuit at all.
 


LETTORI CD Telefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


PURE SOUND  A 8500     €. 1.835,00           Per offerta  TELEFONA / E-MAIL

CD Player A8500 Lettore CD a valvole (2x6N3). Convertitre D/A con sistema Cirrus  CS4398A 24 bit 192KHz. Peso 8,5 Kgs.


The puresound A8500 CD Player was developed as a high quality source to be used with the puresound range of amplifiers. It can also be used in a wide variety of other systems with great success.The A8500 is built around the SONY 213Q high precision mechanism, renowned for both its stability and reliability. The Cirrus systems CS4398A 24 Bit 192KHz D/A converter handles the data stream, which, once converted, is filtered using OPA2604 Op amps. The powerful output stage comprises a pair of 6N3 double triodes. Signal coupling here is via MIT capacitors while the output stage power supply utilises the German MCap capacitors.  The incoming mains supply is filtered by a choke regulated circuit which in turn feeds 8 separate regulated supplies each of which uses Silmic and Rubycon capacitors. These deliver power independently to various parts of the circuitry.  The A8500 offers the facility to vary the sampling frequency between 44.1, 88.2 and 176.4 KHz. Each setting gives a slightly different presentation. The higher sampling frequency offers a more spacious and refined sound whereas the 44.1 KHz setting gives slightly more impact and drive.  The substantially constructed chassis includes a 10mm anodised aluminium front panel, high quality gold plated RCA sockets for Left, Right and digital outputs. An Optical output is also included. The remote control is a sleek, anodised design machined from solid aluminium.  Many CD Players using a valve output stage have an overly euphonic, almost ‘syrupy’ quality which compromises the reproduction of detail and drive. The A8500 has no such obvious characteristic. However, it does reproduce instrument timbre and dynamic range in a plausible way providing a lively and effortless presentation of music not dissimilar to that which can be heard at a live concert. The CD Player comes with a 3 year warranty. The warranty on the valves is 6 months.


ACCESSORI Telefona o invia un  e-mail per avere l'ultimo prezzo   0174 670100   Telefona o invia un  e-mail per avere l'ultimo prezzo 0174 670100  info@sinergy.us


PURE SOUND  MAT         €.   445,00           Per offerta  TELEFONA / E-MAIL

Mat per giradischi in rame

  Weighing 1.4 Kg, the tenuto will require that most suspended subchassis turntable designs are readjusted to provide a level platform. The additional mass does increase the kinetic energy stored by the platter while affording very effective damping of the unwanted resonance that many alloy platters can contribute to the sound of vinyl replay. The Gunmetal also provides a more appropriate impedance match allowing energy imparted into the vinyl by the stylus to be dissipated harmlessly.


 


Legenda istruzioni

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Clicca per qui per vedere :  DATI TECNICI   SPECIFICHE PRODOTTO


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