Modern reproductions of cylinder and disc recordings usually give the impression that the introduction of discs was a quantum leap in audio fidelity, but this is on modern playback equipment; played on equipment from around 1900, the cylinders do not have noticeably more rumble and poorer bass reproduction than the discs. Another factor is that many cylinders are amateur recordings, while disc recording equipment was simply too expensive for anyone but professional engineers; many extremely poor recordings were made on cylinder, while the vast majority of disc recordings were competently recorded. All cylinder recordings were acoustically recorded as were early disc recordings. From the mid-1920s onward, discs started to be recorded electrically which provided a much enhanced frequency range of recording.