--- IMPORTANT NOTICE --- The following countries currently cannot receive this item by sea mail. Please do not bid if your shipping address is in one of these countries: Andorra / Armenia / Azerbaijan / Belarus / Belgium / Croatia / Denmark / France / Georgia / Germany / Kazakhstan / Kyrgyzstan / Malta / Romania / Russian Federation / Spain / Sweden / Tajikistan / Turkmenistan / Ukraine / Uzbekistan --- Item Description Sansui AU-D907F Extra — Integrated DC Amplifier (Serial No. 821100777, circa 1982) The AU-D907F Extra stands at the pinnacle of Sansui's legendary "D" series integrated amplifiers, representing the culmination of the brand's Super Feedforward & DC design philosophy. Introduced in the early 1980s, this amplifier was engineered to deliver uncompromising audio performance, combining an ultra-low-distortion DC amplifier topology with Sansui's proprietary Super Feedforward circuit — a design that suppressed even-order harmonic distortion to vanishingly low levels. The front panel, finished in elegant matte black with distinctive wood-grain side panels, features a full complement of controls: separate Treble and Bass tone controls, a 10kHz/20kHz filter section, a –20dB muting switch, precision volume and balance knobs, and a large illuminated input selector offering Phono-1 (MM/MC), Phono-2 (MM/MC), Tuner, and AUX inputs. An MC transformer switch and MC cartridge impedance selector (Low/High) are provided for moving-coil cartridge compatibility. Two independent tape loops (Tape-1 and Tape-2) with a versatile Rec Selector allow complex dubbing configurations. The rear panel, finished in Sansui's signature copper-toned steel, provides dual speaker system outputs (System-A and System-B, 4–16Ω), a turntable ground terminal, and switched/unswitched AC convenience outlets (100V, 50/60Hz). The unit operates on 100V AC at 50/60Hz with a rated power consumption of 320W. Internally, the amplifier employs a massive toroidal-type power transformer and large-capacity filter capacitors, the hallmarks of the D907F Extra's authoritative power delivery. The top cover features prominent ventilation slots for efficient heat dissipation. This is a rare opportunity to acquire one of Japan's most celebrated vintage integrated amplifiers — a unit that, even decades after its release, commands deep respect among audiophiles worldwide for its musicality, build quality, and engineering excellence. Specifications (as per manufacturer): Rated Output: 160W + 160W (8Ω, 20Hz–20kHz, 0.003% THD) Input Sensitivity / Impedance: Phono MM 2.5mV / 47kΩ, Phono MC 0.1mV / 100Ω, Tuner/AUX 150mV / 47kΩ Frequency Response: DC–300kHz (+0/–3dB) Signal-to-Noise Ratio: Phono MM 90dB, Tuner/AUX 110dB Power Consumption: 320W Serial No.: 821100777 Size Height: 15.8 cm Width: 46 cm Depth: 44.5 cm Weight 17,800 g / 17.8 kg Condition Power-on has been verified and basic operation confirmed; the front panel displays notable paint chipping along the left edge near the wood side panel, and the copper-toned rear/bottom chassis shows age-related oxidation and patina consistent with approximately 40 years of storage. NOTICE This item is large and will be shipped via Japan Post surface (sea) mail. Delivery takes at least 3 months, so please be patient and do not open a claim during this period. Please note: Surface mail is not available for the following countries: Andorra / Armenia / Azerbaijan / Belarus / Belgium / Croatia / Denmark / France / Georgia / Germany / Kazakhstan / Kyrgyzstan / Malta / Romania / Russian Federation / Spain / Sweden / Tajikistan / Turkmenistan / Ukraine / Uzbekistan If your shipping address is in one of these countries, we must use an alternative method (extra cost) or cancel the order. Import duties, taxes, and charges are not included and are the buyer's responsibility. Your local customs or delivery service may contact you via phone or email for clearance procedures. Please ensure you can respond. If unanswered, the parcel may be returned, and re-shipping will cost more than double. Thank you very much for your understanding and cooperation.