Lovepedal high power twin

beecher mirage Lunettes jumelles adaptées sur une paire de lunettes, très légères et faciles d’utilisation pour malvoyant ou tout simplement pour aller au spectacle ou observer les oiseaux. Les molettes d’ajustement à la vue sont très souples, indépendantes l’une de l’autre,  et rendent ces jumelles très faciles à adapter à sa vue. Puissance de grossissement 5,5 et 25 millimètres  de diamètre de lentille frontale Le Beecher Mirage permet aux personnes ayant une déficience visuelle de voir les objets à une distance normale tout en utilisant un fort grossissement. Ils sont idéaux pour des tâches telles que regarder la télévision, le théâtre et les événements sportifs. POIDS: 114 gr Très bon état Twin glasses adapted to a pair of glasses, very light and easy to use for the visually impaired or simply to go to the show or observe the birds. The adjustment knobs in view are very flexible, independent of each other, and make these binoculars very easy to adapt to his sight. Magnification power 5.5 and 25 mm front lens diameter Beecher Mirage allows people with visual impairments to see objects at a normal distance while using high magnification. They are ideal for tasks such as watching TV, theater and sports events.

Rare paire Luxman C300 et M300:Amplificateur et préamplificateur (avec phono). État : "Occasion" En excellent état de fonctionnement, notez qu' il faudra remplacer une ampoule du voyant Led  "classe A". Voltage 220V. Les deux appareils sont visibles chez Jefferson Hifi à Pérouse où je les ai déposés. Livraison possible en France, en Europe,etc nous consulter pour les frais d'envoi internationaux. Le M300 a été produit en même temps que la série C300. Je crois qu’il n’en a été produit que 2000 dans le monde. C’est non seulement une paire de collection, mais le haut de gamme des luxman des années 1980. Ils sont les dernières combinaisons pré/ampli, à avoir été fabriquées sans implication de Alpine(qui a ensuite  modifié sérieusement la qualité Luxman  hélas.). ils ont été primés "produit de l'année" au début des années 80.  Le M300 se laisse utiliser soit en classe A, où il développe 2x42 w sous 8 ohms en classe A, ou alors 172w en classe AB sous 8 ohms. Comme toujours chez Luxman, on peut espérer une dizainede watts supplémentaires dans chaque modes, vu qu'ils utilisent unsystème de mesure très strict sur leurs fiches techniques. Il faut surtout savoir qu’il ne faut basculer de classe AB en classe A que à l’arrêt, en redémarrage à froid.  Voici  les caractéristiques techniques (https://audio-database.com/LUXMANALPINE-LUXMAN/amp/m-300-e.html) et https://audio-database.com/LUXMANALPINE-LUXMAN/amp/c-300-e.html 1)Préampli C300: Frequency response: 0.5Hz to 140kHz   Total harmonic distortion: 0.005% Input sensitivity: 0.09mV (MC), 2mV (MM), 140mV (line)      Signal to noise ratio: 80dB (MM), 100dB (line) Output: 140mV (line), 1V (Pre out), 20V (Pre out Max)  Dimensions: 478 x 163 x 384mm     Weight: 9kg 2)amplificateur M300 Form Duo beta plusX poweramplifier Succession effectiveoutput (20Hz - 20kHz, both channel simultaneous operation) Class-A: 40W+40W (8ohms) AB class: 270W+270W (4ohms) 170W+170W (8ohms) THD (8 ohms) 20Hz- 20kHz-3dB Class-A: 0.005% or less AB class: 0.005% or less Cross modulationdistortion (8 ohms) 60Hz: 7kHz=4:1, -3dB Class-A: 0.005% or less AB class: 0.005% or less Output bandwidth Class-A: 10Hz-100kH-3dB(0.015% of distortion) AB class: 10Hz - -100kHz three dB(0.04% of distortion) Frequency characteristic 10hz-100kHz-1dB (aClass-A and AB class) Input sensitivity Class-A: 0.45V ABclass: 1V Input impedance 50kohm (a Class-A and ABclass) SN ratio (IHF-Acorrection) Class-A: 115dB ABclass: 120dB Remains noise (IHF-Acorrection) 30 microvolts (a Class-Aand AB class) Dumping factor 120 (1kHz, 8 ohms, aClass-A, and AB class) Protection network DC drift detectionspeaker protection network Overcurrent detection amplifierprotection network Attachment Circuit operationswitchpoint (indicator) Peek indicator Inputattenuator Headset jack Speaker-off switchpoint(indicator) Line phase sensor Supply voltage AC100V, 50Hz/60Hz Power consumption (Electrical Appliance and Material Control Law) Class-A: 420W ABclass: 430W Dimensions Width 478x height 214xdepth of 484mm Weight 30kg Stereo power amplifier which adopted the Duo beta plusX circuitry. In order to control NFB of an amplifier circuitry appropriately, the Duo beta circuitry was developed and it is adopted as M-300. After this makes amplifier to the extent that it is used also from a nakedness property as it was, it adds proper-quantity NFB and DC servo as finish of a tone quality, and is suppressing the transitional distortion of a supression of play sound, TIM, etc. by superfluous NFB etc. Furthermore, in M-300, the thought of a suitable control is introduced also into a power circuit, and it is considered as the power-source Duo beta plusX. At plusX, the stability of a comfortable tone quality and an operation is reconciled because the bottom gives controlling force calmly on the assumption that a generous power-source part. M-300 can change and use a Class-A and AB class. The Class-A operation has a structure which amplifies a signal wave form as it is. Therefore, it becomes unrelated to switching distortion or crossover distortion, and does not have the cause that it is distorted in addition to an element's own linearity. In M-300, the Class-A operation excellent in adopting a Duo beta as LAPT which excelled [element] in the high region property, and an amplifier circuitry, and adopting plusX as a power circuit is realized. In AB class, Oide power which drives transitional distortion below into a limit of measurement in pursuit of a nakedness property also in an operation, and is not made in a Class-A operation on it is realized. At the time of a switching of a Class-A / AB class, in a performance, sound does not break off and a noise is not generated, either. Circuitry constituted all the amplification stages from a push-pull circuit from the input stage to the output stage, and the amplifier which was excellent in the nakedness property which will be the requisite for a Duo beta circuitry is realized. The pre-driver stage is making the input stage the transistor which was excellent in the high region property with the cascode interconnection with the stream composition of the cascode bootstrap and the differential push pull by complimentary FET of a Pch type and a Nch type. And the driver stage and the power stage are considered as the push pull stream composition by a three-step Darlington connection. A linearity makes an output element high speed power transistor linear arithmetic processor-T which was well excellent in the high region property with a triple push pull stream composition, and the electric current is sent. In this way, the static characteristics and the dynamic behavior improved. And proper-quantity NFB and DC servo are added. The power-source part had the twin monophonic stream composition of right-and-left full independence, and has acquired the merit of a linearity covering all the bands, and the outstanding crosstalk property. The power transformer is performing and using the coil mandatory adopted and put into practice among the object for Rch, and two Lch. First, the power stage and the drive stage were made into another coil, and also the primary side and secondary side has unified the orientation of a coil. This is because it is checking having influence on play sound with the potential (polarity) which a transformer begins to roll, rolls and the last each has between opposite groundings. Moreover, four right and left adopt the type only with a capacity of 12,000 micro F for an audio as a filter capacitor, and low-impedance-ization of the power-source part is attained to it. In order to cope with the rush current which becomes large as the capacity of a power-source part becomes large, the rushes current preventing circuitry is adopted. The speaker protection network and the amplifier protection network are carried. The internal organs of the speaker protection network which detects DC output in an output-terminal and separates an output are carried out. Furthermore, when the speaker code etc. short-circuits, even if there is a big input, an amplifier circuitry is protected or the electric-current preventing circuitry is carried. After the elements currently used examine, it is using it, carrying out a tone-quality mandatory strictly uniquely. The film capacitor generally called non-polar is also arranging a polarity etc., and the capacitor is carrying out the tone-quality mandatory strictly. Moreover, the precision succession good transformation Detent volume excellent in the tone quality and a feeling of an operation is adopted as input attenuator. Furthermore, in terminals, the small gilding pin jack of contact resistance was adopted as the input terminal, and the large-sized screw type is adopted as a speaker termination. The product line was packed into the shortest distance, and also it has chosen high materials of the tone-quality effect, such as a shielded cable of oxygen free high conductivity copper and 500 core. Moreover, in order to suppress an elevation of the source impedance of the pattern side of a substrate, the power bus by a copper plate was adopted and the performance of a power source is employed efficiently. The line phase sensor is carried, by the functionality which detects this polarity, the polarity of the equipment was unified and the tone quality is improved. The indicator turned on at the clipping point of an output is carried, and a peek can be supervised.

At one with the wall At just 3.75mm thick, the LG Signature OLED65W9PLA is one of the slimmest TVs available and protrudes less than a typical light switch. This is sci-fi tech available today. Weighing just 6.7kg, the TV is also suitable for mounting on most internal walls - not always the case with conventional and much heavier 65 inch TVs. The power of OLED With advanced Pixel Level Dimming, OLED remains one of the best options for class-leading picture quality. Unlike LED screens, OLED doesn't require backlighting, so the colour is consistent right across the screen, with greatly enhanced contrast levels. Powerful new processor at its heart With the a9 Gen 2 processor at its heart, this 65 inch LG TV is not only faster at processing but brings about a whole host of new features. Intelligent Artificial Intelligence (AI) benefits both picture and sound for the clearest images and audio yet. Combined with HDMI2.1 sockets, the powerful processor also supports exciting new picture technologies, such as High Frame Rate and Dynamic HDR. AI Picture Artificial Intelligence comes of age with LG’s Deep Learning AI Picture. This clever system compares the signal with a table of content and automatically adjusts the picture quality to the most accurate image possible. Using an ambient light sensor, the system adjusts screen brightness and other criteria (with HDR signals). The result is greater realism with a cleaner and sharper picture. Dolby Atmos soundbar included Connected by a super-flat, white umbilical cord, you'll find a soundbar with the LG's connections, TV tuners and sound system. Unlike most TV's built-in speaker systems, the LG separate soundbar sounds superb. Dolby Atmos compatibility gives the potential for an immersive sound, right around the room. Thanks to the built-in 60 watts amp and twin subwoofers, the sound is also powerful enough to fill your room with rich, punchy sound.

-  Excellent Meridian 566 DA Converter Very good condition and works perfectly Performance 24-bit dynamic range Linearity: better than >–96dBFS Jitter for 44.1kHz sampling, typically 1ps rms Inputs and outputs 3 phono digital inputs; 32kHz–48kHz 1 AES/EBU XLR digital input; 32kHz–48kHz (Parallel with D1) 1 Toslink optical input; 32kHz–48kHz All digital inputs accept up to 24-bit precision Audio outputs 4V nominal balanced (XLR) and 2V unbalanced Construction Twin PLL; word-aligned for lowest jitter Absolute Phase control Precision Class A discrete audio amplification Analogue de-emphasis network High quality construction including use of partitioned 4-layer PCB, and precision capacitors. On-board control microprocessor with non-volatile memory. Full 500 Comms for system integration with Meridian components. Rear-panel control for: Power On/Off Front-panel controls and indicators for: Inputs (D1, D2, D3, Optical), Phase, Emphasis Dimensions 88mm (3.46in) H, 321 (12.64) W, 332 (13.07) D – Weight 5kg (10lbs) Possibility to connect to 110 volts by changing the fuse (see last photo)