NS-02G PRO
amplifier
$360
Gebrauchtmarkt: $260*
Technische Daten
3 von 6 Werten mit vermerkter QuelleKommentar des Toningenieurs
Headroom Notes
A single-ended class-A design with a toroidal transformer and 40,000 uF of reservoir capacitance, rated 30 W RMS per channel into 8 ohms. Thirty watts of class A is a serious amount of standing heat, and Nobsound rates the whole appliance at 120 W of mains consumption - read the two numbers together before deciding what the amplifier does at full output.
Amplification Warning
Published frequency response is 30 Hz - 20 kHz and SNR 86 dB (A-weighted) - both modest for the price. The load is rated at 4 ohms flat, with no upper limit stated.
Was im Datenblatt tatsächlich steht
Wörtlich von der Herstellerseite zitiert, mit dem Datum der Prüfung. Wir behaupten das Gedruckte, nicht die Absicht dahinter.
«Output power (RMS): 30W*2@8Ω; 42W*2@4Ω — Power consumption: ≤120W»
Sixty watts of continuous output from no more than 120 W drawn at the wall requires an overall efficiency of at least 50 %. A single-ended class-A output stage, which is how the same page describes this amplifier, has a theoretical ceiling of 25 % and reaches well under that in practice. The two published numbers cannot both describe the same operating condition.
geprüft am 5.8.2026* Geschätzt über das Abschreibungsmodell (~72% Restwert). · geprüft am 5.8.2026