The RIAA Phono Preamplifier – Twice as nice The SPL phono preamplifier Phonos duo expands the establishedSPL phono preamplifier Phonos with a pair of balanced stereo inputs and outputs....

The RIAA Phono Preamplifier This phono preamplifier for Moving Magnet (MM) and Moving Coil (MC) pickup systems is based on the legendary Douglas-Self-Design.