Phonos is a preamplifier for record players using either moving magnet (MM) or moving coil (MC) cartridges. The equalization curve is according to RIAA and suitable for all vinyl records since 1954. The RIAA filter is designed after Douglas Self. With up to 71.5 dB gain for MC cartridges and 50 dB gain for MM cartridges Phonos belongs to the most powerful phono preamplifiers. The preamplification is switchable and offers three values for MM and MC. The Normal gain is +46 dB (MM) and +67 (MC). In the -10dB position the Phonos produces enough output level for standard consumer electronics products operating on -10dBV. In the +4dB position the output is equally loud as modern DA converters at 0dBfs = +15dBu. Rumble from the playback turntable's drive mechanism is amplified by the low frequency boost that occurs on playback. The Phonos offers a switchable Subsonic filter to eliminate the rumble.