Marantz - EQ515 / 10-Band with Built-in Spectrum Analyzer Stereo graphic equalizer #10-band #audio equipment #audio tuning #frequency control #graphic equalizer #hi-fi gear #marantz #sound customization #spectrum analyzer #stereo equalizer
Sansui - RG-707 / 7-Band feat. multi-mode LED display Stereo graphic equalizer #audio component #audio equalizer #audio tuning #graphic equalizer #sansui #sound control #stereo system #studio equipment #vintage audio
