Description
????Item TitleDescriptionLUXMAN B-10 ii Monaural Power Amplifier BTO pair AC100V Excellent condition.Amplifier that will change your musical life!!! I deliver with perfect packaging.SHIPPED IN A WOODEN CRATE???? The last photo is a maintenance receipt. Type Monaural power amplifierContinuous RMS output 8?:500W4?: 1000WInput sensitivity 1V/500W(8?)Input impedance Coaxial:50k?Balance: 100k?Gain 36dBTotal harmonic distortion ratio 0.04%(20Hz to 20kHz)Frequency response 20Hz to 20000Hz, +0 -0.1dB10Hz to 100000Hz, +0 -1.0dBSN ratio (IHF-A) 115dBAttachment Coaxial-Balance input attenuatorLine phase sensorPower supply voltage AC100V, 50Hz/60HzPower consumption 750W (as specified by the Electrical Appliance and Material Control Law)Dimensions Width 467 x Height 233 x Depth 482mmWeight 43.5kg Monaural power amplifier refined from B-10. The power amplifier end stage is composed of eight Pc200W-class multi-emitter transistors for positive and negative signals, for a total of 16 transistors.This allows for a huge output of 500W with an 8-ohm load and 1000W with a 4-ohm load. The CSSC is a single stagger circuit in a more complementary configuration to minimize control and to avoid negative effects on sound quality due to excessive control.The first stage is a complementary circuit of dual FETs and cascode-connected transistors with high input impedance, and the second stage is a rectification and transmission stage with base grounding, achieving natural signal amplification without the need for extra phase compensation by raising the cutoff frequency.Furthermore, a fully balanced CSSC configuration is adopted by combining two of these CSSC circuits. Noise introduced into the signal is cancelled out by each other at the output, making it resistant to external influences and improving the S/N ratio. The OD Beta circuit is used for NFB correction to unify the tone of the mid-high and low frequencies of the amplifier, and by refining the bare characteristics of the circuit, the DC servo amplifier is eliminated to enable tonal unification over the entire bandwidth. The power supply uses a large 800 VA EI transformer and 22,000 ?F custom-made capacitors with excellent charge-discharge characteristics to enhance regulation based on the original bare characteristics of the power supply section and to cope with voltage fluctuations with a margin of safety.This changes unnatural voltage fluctuations into gentle fluctuations, enabling a natural power supply that shows almost no fluctuations when observed on a microscopic level. A six-contact independent fixed-resistance switching attenuator is used in the input section.Military-standard high-precision large carbon film resistors (1W type) allow for optimal settings without loss of sound quality.In addition, the connection with various devices has been taken into consideration, and a new reference position has been set up to provide 100W output power at 1V input. A large 120 x 100 mm power meter of logarithmic compression type is provided for ease of use. To eliminate unwanted vibrations that adversely affect sound quality and to counter external noise and interference noise, a 5-point grounded FRP chassis base with excellent vibration absorption mode is used as the foundation to protect stable operation, and the chassis adopts a highly rigid box isolation structure to eliminate mutual interference between circuits.In addition, the internal filter is reinforced to counter high-frequency noise emitted by PCs and microcomputer-equipped devices. In order to provide a cleaner and more stable power supply, we have taken all possible measures to prevent various types of interference noise and unwanted vibrations in the power supply section.The power supply section, including transformers, rectifier diodes, and block capacitors, is completely separated from the signal path and housed in a separate chassis, adopting an independent power supply room system. The input section is equipped with balanced terminals and RCA terminals, and the speaker terminals are equipped with originally developed large speaker terminals compatible with banana terminals.It is also compatible with the Speakon terminals used in professional audio fields. In addition to newly developed ultra-low noise custom-made resistors, custom parts such as large power transformers, large block capacitors, electrolytic capacitors, copper styrene capacitors, copper bus bars, and 6N cables are used.Furthermore, to minimize impedance fluctuations, a thicker copper foil pattern of 70µ and a glass epoxy substrate with excellent insulation properties are used. The front panel is machined from a solid aluminum panel, and a special pearskin finish is used to add a unique flavor.The cabinet is made of wood. A line phase sensor that detects the polarity of the AC power supply is provided to ensure that the correct polarity is always used for setting. ?The watch has not been overhauled. Those that have been overhauled are noted.?If there is something you are looking for, please feel free to contact us.? If there is a discrepancy between the photo and the description on the product page, the photo will be considered as the correct one.Thank you. Shipping Standard Shipping ( Japan Post , FedEx , DHL ) The package will arrive 5-14 days after shipment. International Buyers - Please Note:Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying. If there is a remote charge for your address we will charge you for additional shipping.Thank you for your understanding. ReturnsReturn Policy. We value your satisfaction with our service. We have an unconditional return policy if notified within 60 days of receipt ( time limits vary by item ). All returns must be in original condition. Once the product has been used, it cannot be returned. Returns must be made within the time limit upon receipt of the merchandise.Please contact us first for return before you ship it back to us.Thank you !
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