AMPLIFICADOR MARANTS MODELO 4270 VINTAGE, AÇO ESCOVADO , COM RECEIVER DA DECADA DE 80, QUADRIFONICO , , EM PERFEITO ESTADO DE FUNCIONAMNTO, MUITO CONSERVADO COM INUMERAS ENTRADAS E SAIDAS PARA TODO TIPO DE APARELHOS ENTRADA PARA MICRIFONE ,PARA FUNCIONAR COM 8 CAIXAS DE SOM SIMPLESMENTE MARAVILHOSO UMA PEÇA RARAEquipamento em excelente estado, sem marcas, riscos batidas, interior original, revisado com garantia de 3 meses.Embora compacto é pesado, embalado chega a 25kg náo recomendável envio por Correio.Audio SectionRated Continuous (RMS) Outputall channels driven at 40Hz-20kHzfor Less than 0.3% harmonic distortion 25W into 8 ohms2x70w into 8ohms4x25W into 4ohms4x13W into 16ohmsIntermodulation distortion Less than 0.3% harmonic distortionInput Impedance/SensitivityFM SectionTuning Frequency Range 88-108MHzIHFM Usable Sensitivity 2.3uVIHF Selectivity 60dBCapture Ratio 1.6dBImage Rejection Ratio at 106MHz 70dBSignal to Noise Ratio 70dB (Mono), 60dB (Stereo)Total Harmonic Distortion 0.2% (Mono), 0.3% (Stereo)Frequency Response 30Hz-15kHz ±1dBStereo Separation at 1KHz 40dBQuadradial Output (400Hz 75kHz dev.) 300mVAM SectionTuning Frequency Range 540-1605kHzUsable Sensitivity 30µVSelectivity 26dBImage Rejection Ratio at 1400kHz 70dBSignal to Noise Ratio 45dBFrequency Response (-6dB) 50Hz-3.5kHzTotal Harmonic Distortion 1%PhonoLine 47kohms/2.2mV for 25W output100k ohms/150mVFrequency Response 20Hz-20kHz ±1.0dB at 1W outputDamping Factor More than 45 at 8ohmsVersions/Power requirements120V AC 50/60Hz220V AC 50Hz110/120/220/240V AC 50/60Hz with voltage selectorPower consumption: 400 watt