LUXMAN L-504 Integrated Stereo Amplifier 70W RMS Vintage 1973 Works Good Look

Description: Luxman L-504 Integrated Stereo Amplifier 70Watts RMS Vintage 1973 Work Good LookThe description of this item has been automatically translated. If you have any questions, please feel free to contact us. LUXMAN L-504 Integrated Stereo Amplifier 2 x 35 Watts RMS Vintage 1973 Work Good Look Import From JAPAN to ORIGINAL WORKING PERFECT - on 100, 120 Volts or 220 and 240 Volts (with EXTERNAL TRANSFORMER included for FREE) LUXMAN L-504 78,000yen (October, 1973 release) Description �@ The Integrated Amplifier announced as a SQ-505 type succeeding machine. The main-amplifier part is designed for the purpose of removing crossover distortion in which it is difficult to remove with B class push pull amplifier, and the notching distortion especially in a high region as much as possible. The PNP type and NPN type transistor which were excellent in the high region property were appointed as B class driver stage, and the power transistor for pure complimentaries which was developed for LUX and which was excellent in the destructive-proof property which does not spoil a high region property is adopted as the power stage. By adopting the differential-amplification circuitry by constant current drive, and driving from a non-signal time with a fixed electric current till the maximum output, the pre-driver stage maintains B class operation stage at the status that it was stabilized, and is suppressing notching distortion to the relative minimum. The transistor of this stage has high high region cut-off frequency (ft), especially, few things of the collector output capacitance (Cob) were adopted, and the distortion of the high region has also acquired the almost same value as 1kHz over full power. All the transistors currently used for a main-amplifier part arranged the can type, and have secured moisture resistance, an endurance, and hi-reliability. The gentle LUX scheme NF type of a transition property is used for a tone control circuit. "Height level adjustment" with a click stop, "height each curving point frequency switching" of every two points, and independent "tone-defeat switchpoint" are carried in organization. The equalizer circuitry has obtained the linearity and high SN ratio which are a 3 steps of �� hardwired-connection circuitry which is a stream composition, and were excellent in the super-low-noise type transistor of NPN-PNP-NPN with an advantageous voltage utilization factor. Distortion has acquired the outstanding numerical value, when a current amplification factor (hfe) adopts a transistor with a sufficient linearity highly. Direct-current stability is raised fully applying a direct-current feedback to this circuitry. Moreover, the deflection with a RIAA curve is dedicated to less than �}0.5dB by making the allowable error of a using small part and suppressing variation as much as possible. It is used for the capacitor used for an input circuit and an output circuit from the inside of a Mylar type with little leakage current, and a tantalum type, carefully selecting it further. This is holding down the unpleasant shocking noise at the time of a switchpoint switching to the relative minimum. Two 6800-micro F electrolytic capacitors are used for the filter circuit of a power-source part. The stable power source is realized in combination with the good power transformer of a regulation. Power-switch ON and the muting circuit which separates a speaker circuitry at the time of OFF are prepared in the measure against a shocking noise at the time of power activation and a shutdown, and the duty of the speaker protection is also achieved. Two speaker outputs, a main and remote, are carried and it can be used separately or simultaneously. The Attenuator switchpoint is carried and a sound volume of -18dB can be carried out with a one button. FormStereo integrated amplifier Succession effective output35W+35W (8 ohms, both channel simultaneous operation) 40W/40W (ohms [ 8 ], one-side-channel operation) THD0.03% or less (8ohm, 35W) Cross modulation distortion0.04% or less (8ohm, 35W, 70Hz:7kHz=4:1) Output bandwidth5Hz - -50kHz three dB (0.1%) Frequency characteristic10Hz - -60kHz one dB Input sensitivity480mV (8ohm, 35W) impedance50kohm Remains noise0.5mV or less Dumping factor35 (at the time of an 8-ohm load intensity) Attachment Attenuator (-18dB) Main speaker switchpoint Remote speaker switchpoint headphone jack Standard output voltagePre out:480mV Rec out:120mV Maximum output voltagePre out:4.5V Output load impedancePre out: About 100ohms Rec out: About 100 ohms Frequency characteristicAux1:10Hz-50kHz-1dB THD1:0.04% or less (1kHz, 1V) of Aux Input sensitivityPhono1, 2:2.7 mV Tuner,aux1,2:120mV Input impedancePhono1, 2:65kohm Tuner, aux1, 2:50kohm SN ratioPhono1, 2:65dB or more Tuner, aux1, 2:76dB or more Maximum permissible input (1kHz) Phono: 300mV (RMS) 850mV(PP) Remains noise About 25 microvolts or less Tone controlWith a curving [LUX scheme NF type] point switching The point curving [low-pass]: 150Hz, 300Hz The point curving [high region]: 3kHz, 6kHz AttachmentTapes monitor switchpoint (two lines) Tapes dubbing mode switch Tape connector ( din specification) The semiconductor used Transistor :1345:10 2SCs 640:4 2SCs 2SA620K: one piece 2SC1103A: Four pieces 660:4 2SAs 959:2 2SCs 2subset-dependency188A: Two pieces 2SB545A: Two pieces 853:1 2SCs 735:3 2SCs 562:1 2SAs 496:1 2SCs Diode :1S1555V: Two pieces 1N4003: 4 pieces 1S188:4 piece Five B3:1 pieces Zener diode :120:2 WZ(s) Varistor :SV-03: 2 pieces SV-02: 2 pieces Power consumption150W (at the time of an 8-ohm simultaneous load intensity and the maximum output) DimensionsWidth 450x height 160x depth of 268mm Weight10kgBy adopting the differential-amplification circuitry by constant current drive, and driving from a non-signal time with a fixed electric current till the maximum output, the pre-driver stage maintains B class operation stage at the status that it was stabilized, and is suppressing notching distortion to the relative minimum. The transistor of this stage has high high region cut-off frequency (ft), especially, few things of the collector output capacitance (Cob) were adopted, and the distortion of the high region has also acquired the almost same value as 1kHz over full power. The equalizer circuitry has obtained the linearity and high SN ratio which are a 3 steps of �� hardwired-connection circuitry which is a stream composition, and were excellent in the super-low-noise type transistor o Características Tube Amplifier Características Término análogo Número de canales 2 Garantía del fabricante Sin garantía Tipo Amplificador integrado EAN No aplicable Color Plata Marca Luxman Entradas de audio Estéreo RCA Año de fabricación 1973 País/Región de fabricación Japón Cantidad de unidades 1 Tipo de unidad Unidad Salidas de audio Banana Jack Modelo L-504 Potencia 2 X 35 Watts RMS

Price: 1266.77 USD

Location: Albarizas

End Time: 2024-12-16T15:04:36.000Z

Shipping Cost: 379.18 USD