Fender PA 135 Amp Head with 4 Speaker Cabinets

The Fender PA135 is a vintage 1970s Silverface-era tube public address (PA) amplifier head often compared to a 4-channel Fender Twin Reverb. It is commonly paired with original Fender Sound Column speakers. Fender PA135 Head Specifications & Features • Power Output: 135 watts RMS into 4 ohms (220 watts peak power, Model CFA7310). • Power Amp Stage: Quad 6L6GC output tubes in a fixed-bias configuration with an adjustable bias and output balance control. • Preamp Configuration: Utilizes a mix of 12AX7, 12AT7, and 7025 preamp tubes (half a 12AX7 per channel, 12AT7s for reverb drivers and phase inverters, and 12AX7 for reverb recovery). • Channels & Controls: Four separate input channels with dual jacks, individual volume and tone controls (bass/treble), master volume, master reverb, and a hum balance control. • Back Panel: Speaker column output jacks (8 ohms), reverb pedal jack, ground selector switch, and fuse/power switches. Fender Sound Column Speakers • Configuration: Four portable speaker columns, each housing four 8-inch high-fidelity speakers (8 ohms per column). • Design & Acoustics: Uses a vertical column array layout that reduces floor/ceiling reflections and minimizes feedback while offering broad horizontal dispersion. Guitar Amp Conversion: Because the PA135 shares a circuit architecture closely related to Fender's high-headroom twin-style tube amps (sometimes described as a 4-channel Twin Reverb), guitarists frequently seek them out as clean pedal platforms or modify the preamp channels for increased gain and custom guitar rig setups. Everything works perfect and speakers are in mint condition