Machine model: Naim NAP140 pure post-amplifier

Size: 260*230*80mm

Input impedance: 22k ohms

Output impedance: 4-8 ohms

Output power: 70w-130w

Dry sound control: ≤2mv

Input mains: 220v/110v

THD: 0.03%

Output power tube using Sanken 2sc2922

Push the tube using st bd139 140 pairs of tubes

Small tube using the U.S. Fairchild bc550c bc560c

1/4w and 1w resistors: the new rj copper foot precision 1% metal film five-color ring

5w resistors: new Korean koa non-inductive ceramic resistors

Non-polarity capacitor is Nissei film capacitor and cbb capacitor

Electrolytic capacitor brand new Japan incoming Genekon

Power transformer: new professional 120w pure copper cow