amplificador para auriculares

hola quiero pillarme unos AKG 701 y como se que necesitana aplificacion queria saber si me vale un ampli viejo que tengo por ahi es este

TYPHOON ACOUSTIC 2.1 AMPLIFIED SATELLITE SYSTEM

Specifications

* Power Output: 400 Watt PMPO
* Woofer: 12 Watt RMS (THD 10%)
* Satellite: 7.5 Watt x 2 RMS (THD 10%)
* Frequency Response: Woofer: 40Hz-120Hz,
* Satellite: 120Hz-20KHz
* Sensitivity Input: Input 1: 300mV
* Input 2:570mV
* Distortion: 0.3% at 1W 1KHz
* S/N Ratio: more than 65dB
* Separation: more than 40dB
* Driver Unit: Woofer Driver: 4" magnetically shielded, Satellite Driver: 2.5" V6 magnetically shielded
* Audio Input Socket: Input 1:3.5mm stereo plug, Input 2: RCA plug
* Audio Output Socket: RCA socket
* Power Source: AC230V-50Hz
* Product Size: (L x W x H), Amplifier: 185 x 72 x 200mm, Woofer Speaker: 210 x 190 x 195mm, Satellite Speaker:100 x 100 x 128mm