Gracias chicos, por lo que he leído en este y otros foros, más información que he buscado en internet creo que comienzo a tener las cosas un poco más claras.
Pero hay un par de cosas que no entiendo. Cuando dice "Frequency response: 5 Hz - 75kHz (-3dB)", esos -3db a que hacen referencia? e "Input sensitivity LOW LEVEL INPUT: 0,4V - 4V" Que quiere decir?
Estoy pensando en pillarme la FEARLESS 4000 de Mac Audio. Me han hablado muy bien ella, las características técnicas son bastante buenas y muy buen precio.
¿que os parece?
Principle: 4-channel Car Hifi amplifier
Max . power output into 4 ohms: Sinus Burst 2:8, 1kHz, 14,4V
for channel: 1-4
Stereo: 4x300 W
bridged: 2x900 W
RMS power output into 4 ohms: DIN 45324, 14,4 V
for channel: 1-4
Stereo: 4x150 W
bridged: 2x400 W
Max . power output into 2 ohms: Sinus Burst 2:8, 1kHz, 14,4V
for channel: 1-4
Stereo: 4x400 W
RMS power output into 2 ohms: DIN 45324, 14,4 V
for channel: 1-4
Stereo: 4x200 W
Lausprecherimpedanz Kanal 1: 2-8
Lausprecherimpedanz Kanal 2: 2-8
Lausprecherimpedanz Kanal 3: 2-8
Lausprecherimpedanz Kanal 4: 2-8
Frequency response: 5 Hz - 75kHz (-3dB)
Harmonic distortions: << 0,03% (1 kHz)
signal to noise ratio: > 100 dB
Input sensitivity LOW LEVEL INPUT: 0,4V - 4V
Input impedance LOW LEVEL INPUT: 20 kOhm
lowpass filter channel 1, variabel: 40 - 400 Hz
Tiefpassfilter_Kanal_1_bis: 400 Hz
Tiefpassfilter Kanal 2, variabel: 40 - 400 Hz
Tiefpassfilter_Kanal_2_bis: 400 Hz
Tiefpassfilter Kanal 3, variabel: 40 - 400 Hz
Tiefpassfilter_Kanal_3_bis: 400 Hz
Tiefpassfilter Kanal 4, variabel: 40 - 400 Hz
Tiefpassfilter_Kanal_4_bis: 400 Hz
highpass filter channel 1, variabel: 40 - 400 Hz
Hochpassfilter_Kanal_1_bis: 400 Hz
Hochpassfilter Kanal 2, variabel: 40 - 400 Hz
Hochpassfilter_Kanal_2_bis: 400 Hz
Hochpassfilter Kanal 3, variabel: 40 - 400 Hz
Hochpassfilter_Kanal_3_bis: 400 Hz
Hochpassfilter Kanal 4, variabel: 40 - 400 Hz
Hochpassfilter_Kanal_4_bis: 400 Hz
Bass_Boost_Kanal_1_bis: 12 dB / 45 Hz Hz
Anhebung Bass Boost, variabel: 0 dB - 12 db bei 45Hz
Anhebung_Bass_Boost_bis: 12 db bei 45Hz
measurements: 467 x 53 x 290 mm
Specials:
XXL aluminium heatsink for optimum heat carrying off
Circuit board with double copper coating (70 mm) for improved electrical conductance
Aluminium bars for mounting of the TOSHIBA Audio power transistors
Encapsulated potentiometers with metal shaft
Heavy duty screwed gold-plated RCA jacks
Max Power Preamp circuit generates an optimized driver signal in bridged mode operation
Stable at 2 ohms
Volume remote control
Variable full-feature filters:
Low Pass/High Pass 40 – 400 Hz (12 dB/Oktave)
Bass Boost 0...12 dB bei 45 Hz