AudioChainsDB
Nobsound

AV-525

amplifier

$460

Gebrauchtmarkt: $330*

Datenblatt des Herstellers

Technische Daten

3 von 6 Werten mit vermerkter Quelle
Amp Type
Integrated Stereo Amp·
Channels
2·
Speaker Outputs
·
Power Output Per Channel
{"continuousWatts":100,"loadImpedance_ohms":4}, {"continuousWatts":70,"loadImpedance_ohms":8}✓
Min Supported Impedance ohms
4✓
Updated At
2026-08-05T21:42:39.799Z·

Kommentar des Toningenieurs

Headroom Notes

A hybrid: EL84 and 6K4 tubes in the preamplifier with a WY2P rectifier, Toshiba 2SA1943/2SC5200 bipolars in the output, dual toroidal transformers. Rated 100 W + 100 W at 4 ohms and 70 W + 70 W at 8 ohms - the ratio between the two is 1.43, not the 2.0 that a stiff supply would give, which is the honest signature of a real transformer-based power stage rather than a class-D board.

Was im Datenblatt tatsächlich steht

Wörtlich von der Herstellerseite zitiert, mit dem Datum der Prüfung. Wir behaupten das Gedruckte, nicht die Absicht dahinter.

Wie eine andere Größe benannt
«Output impedance: 4-16Ω»

Output impedance is a property of the amplifier itself, and in a solid-state output stage it is a fraction of an ohm - a value of 4 to 16 ohms would mean a damping factor below 2. What this row actually gives is the range of loudspeaker impedances the amplifier accepts; the elsewhere-stated speaker output '(4/6/8Ω)' confirms the reading. It is recorded here as the minimum supported load, not as source impedance.

geprüft am 5.8.2026

* Geschätzt über das Abschreibungsmodell (~72% Restwert). · geprüft am 5.8.2026