50W Guitar-Amp with 3-Band Tone PUBLIC

50W Guitar-Amp with 3-Band Tone

50-watt RMS solid-state guitar amplifier with 3-band tone. Controls Include: Gain, Bass, Midrange, Treble, and Volume. No fuzz, distortion, or other effects. Op-amps (IC1 and IC2) were chosen to ensure clean operation at any control settings, although the power-amp IC (IC3) can be overdriven. Frequency Range 25 Hz to 5 kHz with all controls at 50%, or 5 Hz to 15 kHz with all controls at 100%. Suitable for 6/7/8-string guitar or 4/5/6-string bass. Maximum Gain = +30.4 dBV @ 400 Hz with all controls at 50%, or +71.2 dBV with all controls at 100%. 50-watts is sufficient for most medium to large-scale venues. [Wear ear protection or stand 20 feet away when using the amplifier at high volume levels.] Power-supplies not shown. Requires two DC supplies; one dual-polarity regulated +-15VDC @ >= 40 mA for the op-amps, and one unregulated dual-polarity +-27VDC @ 2A for the power-amp IC. And though simulator verified, treat the circuit at experimental. Breadboard test before soldering. Example Speaker: Celestion "Vintage 30" Guitar Speaker, 12", 8-ohm, 60W. Described as being "detailed, with warm lows, rich midrange, and well-defined highs". Used by many famous guitarists on a respectable number of hit songs. Recommended for boutique combo-amps. Parts Express # 294-2274. $169.00 https://www.parts-express.com