The Goodmans Maxamp 30, introduced in 1966, is a compact amplifier recognized for its unique design and innovative use of technology for its time. Measuring 10 inches tall, 5 inches wide, and 7 inches deep, it features a polished wooden cabinet and an anodized fascia adorned with a vertical row of white knobs, each fitted with metal inserts. The amplifier's layout includes a prominent volume control and selector switches for bass, treble, and balance adjustments, with additional controls for high and low filters, a mono button, loudspeaker switch, and power switch. A neon power indicator and a 1/4 inch headphone socket add to its functionality, the latter being a notable feature not commonly found in similar products from British competitors at that time. The Maxamp 30 was pioneering as the first British amplifier utilizing RCA's silicon transistors in its output stages. Its Class B biased, transformer-less output stage was claimed to deliver 15W RMS per channel into 8-ohm speakers and 10W into either 4 or 15-ohm loads. The amplifier supports various inputs including a high-quality MM pick-up input with a sensitivity of 3.5mV, along with facilities for ceramic and crystal pick-ups. The tone control utilizes the Baxandall circuit, providing an adjustable audio experience. With a switched AC outlet for auxiliary devices, the internal structure comprises three main PCBs for easy servicing. Despite its retro aesthetic, the Maxamp 30 has been noted for its somewhat limited sound projection and dynamic range, often failing to capture the intricate details in music. It was reported to produce a polite and smooth sound but lacked the excitement and fidelity performance that enthusiasts seek.
