Sehr guter Zustand. Kaum benutzt. Ohne Zubehör. Schickes Gerät. Privatverkauf, keine Garantie oder Rückgabe.

UP FOR SALE, Nice, fully working Kenwood/Trio KP-7700 quartz pll direct drive manual turntable. Details and specs below from web, sorry about the cost of shipping but this thing weighs 39lbs. It won’t be cheap to ship. Private pickup available. Comes with Dust cover, 45 adapter, with proper 15mm overhang line, Kenwood/Trio headshell and N-11 cartridge and stylus. Platter mat is in good condition as well. Turntable is all original and working well, has been throughly tested with speed and quartz lock solid at both 33 1/3 and 45rpm. Recap kits are available on this site if you are interested. A direct drive player with a quartz PLL control circuit. A direct drive system is adopted for the turntable part. The quartz PLL system protects rotational accuracy from steady load (static load with very low frequency component), time drift and temperature drift, and 550 kg ? cm for random transient load with high frequency component.2Steady rotation is maintained by corresponding with moment of inertia of. A double (magnetic and mechanical) integration type 180 slot 3-layer gear is used for the servo detection part of the quartz PLL circuit. In addition, the Speed-Volt (S-V) conversion method is used to convert the rotational speed of the turntable as it is into voltage. This makes the servo response linear and increases the response of the quartz PLL circuit to random and slight load fluctuations. Taking into consideration the effect of the eccentricity and twist of the turntable Center shaft on the sound, a 10 ? Center shaft is adopted, and the turntable shaft is used as a motor shaft as it is. The turntable sheet applies the principle of the Helmholtz resonance box. A small port is provided on the front surface of the table sheet and a resonance space is provided on the back surface of the table sheet to absorb the split vibration generated by the phonograph record. We have also studied the materials used to hold the turntable and the record board together when playing a record in order to improve rotational accuracy. By using MC material for the cabinet, the total weight is increased and vibration of the cabinet due to the reaction of the turntable is suppressed. Dual suspension absorbers are used for the legs. The dual suspension absorber is a unique system with less rigidity in the longitudinal direction and greater rigidity in the lateral direction. This reduces the lateral vibration that occurs when a turntable with a large moment of inertia is driven by a motor with a large starting torque, while at the same time maintaining the elasticity of the absorber from the heavy cabinet. A digital control system using a flip-flop circuit is adopted for the rotation number selector switch and start / stop switch. The power switch is independent of the start / stop selector switch and linked with the power indicator. The quartz lock indicator lights when the turntable rotates normally and the PLL system is locked. The brake part is equipped with a pure electronic brake, which realizes flexible deceleration by suppressing harmful vibration peculiar to mechanical brake. The arm base uses a collet chuck type with large mechanical impedance to suppress resonance. The tone arm adopts TA-71 which is an elastic coupling mass separation type tone arm. The tone arm is affected by two disturbances with different levels and frequencies : arm resonance and first order split resonance. The arm resonance and first order split resonance are out-of-phase vibrations in the main weight section, and it was said that it was impossible to control them simultaneously. The TA-71 was jointly developed by Trio and NHK Technical Research Institute. It cancels the arm resonance and first order split resonance at the same time. It improves sound quality by increasing howling margin and suppressing low-frequency resonance with a high level. For the internal wiring of the tone arm TA-71, the silk-wound Pentlitz wire of ?? structure with less DC impedance, additional capacitance, and additional inductance is used to improve the channel separation. TypeRecord player Turntable Part (PM 700) Drive systemDirect drive Drive motorQuartz PLL Servo 20 Pole 30 Slot DC Motor Turntable33.0 cm aluminum die-cast, 2.6 kg Moment of inertia550 kg / cm2(Including Rubber Sheet) Number of revolutions33 1/3, 45 rpm Wow and flutter0.022% WRMS or less Signal-to-noise ratio62dB(JIS) 74dB(DIN-B) Transient load characteristics0.00030% or Less (400 Hz, 33 1/3, 20g / cm Load) 0.00015% or Less (1 kHz, 33 1/3, 20g ? cm Load) Steady-state load characteristics0% (Needle Pressure Up to 120g) Start-up characteristic1.8 seconds Rotational speed deviationWithin ± 0.002% Time drift0.0002% / h or less Temperature drift0.00002% / ? or less Power supply voltage characteristics0% (± 10 V) Tone Arm Section (TA-71) TypeStatic balance S-shaped pipe arm StructureElastic coupling mass separation system Effective arm length245mm Overhang15mm Tracking error+ 1.8 ° ~ -1.0 ° Needle pressure variable range0 ~ 3.0g (0.1g step) Applicable Cartridge Weight4g ~ 14g (when using the attached shell) Attached shell11g, magnesium alloy die-cast Arm height adjustment6mm Attachment mechanismHeight variable absorber Arm elevation Anti-skating Pure electronic brake Gold-plated audio cord Pwer100 VAC, 50Hz/60Hz Power consumption10W External dimensionsWidth 490x Height 160x Depth 423 mm Weight17.5kg

Sehr guter Zustand. Kaum benutzt. Ohne Zubehör. Schickes Gerät. Privatverkauf, keine Garantie oder Rückgabe.

Sehr guter Zustand. Kaum benutzt. Ohne Zubehör. Schickes Gerät. Privatverkauf, keine Garantie oder Rückgabe.

Kenwood KAV-7700 amplifier service manual This is an original factory issued manual, it is not a copy In good condition. We include a stiff cardboard insert and put a Please Do Not Bend sticker on the envelope to help preserve the integrity of the manual. Shipped by post. U.S.A & Canada, please allow one week delivery. International destinations, please allow 2-4 weeks for delivery.