modular approach
input connections
6
input loading network
Special Design Features of the Nº32 Reference Preamplifier
The Nº32 Reference Preamplifier and Reference Phono Preamplifier Modules were designed together. All the high performance power sup- ply, extensive control and high isolation input circuitry that character- izes the Nº32 Reference Preamplifier allows the
Each channel of the Nº32 reference phono preamplifier is a removable module. Each module is shielded in a metal box, not simply for me- chanical handling, but for the extraordinary noise shielding properties that only a fully enclosed
The phono preamp has input connections for two phono sources. These inputs benefit from Madrigal’s “virtually unplugged” input switching topology, where ground as well as hot connections of unselected inputs are broken to eliminate ground current flow between components. Shorting the unselected signal insures superb isolation between phono inputs. Low level phono signals pass through only the
Optimum input loading for your phono cartridge is essential to achiev- ing the performance your cartridge manufacturer intended. The Nº32 reference phono preamplifier makes getting the most from your phono system more convenient (and more likely) than ever. A network of re- sistor and capacitor terminations, switched by the same reed relays as above (specifically optimized for
Available resistor load values are 3.3Ω, 5Ω, 7.7Ω, 10Ω, 33Ω, 50Ω, 77Ω, 100Ω, 330Ω and 47kΩ.
Available capacitor loads values are 0pF, 50pF, 100pF, 150pF, 200pF, 250pF, 300pF, 350pF and .01uF.
All the provided load termination components are the highest quality,
