Audio Database ROTEL RA-315 26,900yen(around the 1970 in-the-early time) Description �@ The Integrated Amplifier of the all transistor stream composition which adopted ITL and an OTL scheme. ITL of a silicon transistor using and an OTL power circuitry are adopted. The signal source indicator which can check the selected source is carried. 2 sets of speakers are connectable. The tapes monitor switchpoint, the loudness control, and the tone control are carried. The input terminal which can use 2 sets of phones, a magnetic cartridge and a ceramic cartridge, is carried. The headphone jack is carried. Rating of a mode Form Integrated Amplifier Music power (IHF) 60W (4ohm) 44W (8ohm) Effective output 17W/17W (8ohm) THD (1kHz) 0.3% (15W output) 0.2% (1W output) Cross modulation distortion (70Hz:7kHz=4:1) 0.4% (15W output) 0.3% (1W output) Frequency characteristic 15Hz-90kHz+0 -3 dB Output band property (IHF) 20Hz - 80kHz Dumping factor 30 (8ohm) or more Rise time Aux: 4 microseconds (10kHz) Overload Phono:50mV(1kHz) S/N Phono: 60dB or more Tuner, Aux: 70dB or more Remains noise 2mV or less Input sensitivity/impedance Mag: 2.7mV / 50kohm Aux: 90mV/2Mohm Tuner: 170mV / 100kohm Aux: 180mV / 100kohm T. in:280mV /, 15kohm Tone control Bass: �}14dB (50Hz) Treble: �}12dB (10kHz) Loudness control +10dB(50Hz) Speaker impedance 4ohm-16ohm The semiconductor used Transistor: 24 pieces Diode: Three pieces Supply voltage AC100V/120V/200V/240V, 50Hz/60Hz Power consumption 117VA Dimensions Width 358x height 120x depth of 241mm Weight 4.7kg