Un ampli tout petit
Publié : 17 sept. 2012 16:58
Je suis tombé sur cet ampli par hasard, il est peut être sorti depuis longtemps et je ne sais pas ce qu'il vaut au niveau sonore, mais il est vraiment petit, 40 x 24 x 9 mm et coûte 35€.
Technical Specifications
Amplifier Structure : Class-A / B amplifier
Power Structure : Built in battery power supply
Headphone Impedence : 32 ohm to 600 ohm
Circuit Protect : Output shortcircuit / temperature protect
Usage Time : With 100% full battery arround 24hrs, depending on volume used.
Charging Method : Using PC or USB adapter to charge
Charging Time : Fully charging (3hrs), fast charging (1.5hrs = 80%)
Main OPAmp : TI - DRV601
Audio Performance (1kHz sine wave, 2Vrms output, 24-bit / 48kHz)
dB-Weighed Frequency response (From 40Hz to 15kHz) : 40Hz +0.1dB, 15kHz -1.67dB
Actual Frequenxcy response 20Hz to 20 kHz
Noise level (1kHz, A-Weighted) : -110.5dB
Dynamic range (1kHz, A-Weighted) : 110.4dB
THD% : 0.0068%
Stereo crosstalk : -96.0dB
Housing material : Shock absorbing flexible silicone.
Housing color : 5 colors available : Red, Black, White, Green, Purple
Dimensions : 40 x 24 x 9 mm (D x W x H).
Weight : 14 gram (without cables)
Technical Specifications
Amplifier Structure : Class-A / B amplifier
Power Structure : Built in battery power supply
Headphone Impedence : 32 ohm to 600 ohm
Circuit Protect : Output shortcircuit / temperature protect
Usage Time : With 100% full battery arround 24hrs, depending on volume used.
Charging Method : Using PC or USB adapter to charge
Charging Time : Fully charging (3hrs), fast charging (1.5hrs = 80%)
Main OPAmp : TI - DRV601
Audio Performance (1kHz sine wave, 2Vrms output, 24-bit / 48kHz)
dB-Weighed Frequency response (From 40Hz to 15kHz) : 40Hz +0.1dB, 15kHz -1.67dB
Actual Frequenxcy response 20Hz to 20 kHz
Noise level (1kHz, A-Weighted) : -110.5dB
Dynamic range (1kHz, A-Weighted) : 110.4dB
THD% : 0.0068%
Stereo crosstalk : -96.0dB
Housing material : Shock absorbing flexible silicone.
Housing color : 5 colors available : Red, Black, White, Green, Purple
Dimensions : 40 x 24 x 9 mm (D x W x H).
Weight : 14 gram (without cables)