SP-3 preamplifier

GPTKB entity

Statements (18)
Predicate Object
gptkbp:instanceOf audio preamplifier
gptkbp:countryOfOrigin gptkb:United_States
gptkbp:designedBy gptkb:William_Zane_Johnson
gptkbp:hasFeature phono stage
tone controls
multiple line inputs
https://www.w3.org/2000/01/rdf-schema#label SP-3 preamplifier
gptkbp:introducedIn 1972
gptkbp:manufacturer gptkb:Audio_Research
gptkbp:notableCollection yes
gptkbp:notableFor high-fidelity audio performance
influence on high-end audio industry
gptkbp:powerSource external power supply
gptkbp:successor SP-6 preamplifier
gptkbp:type vacuum tube preamplifier
gptkbp:usedIn home audio systems
gptkbp:bfsParent gptkb:Audio_Research
gptkbp:bfsLayer 8