Présentation du centre d’assistance / Automobile et marine / Composants électroniques pour voiture / Amplificateurs / Amplifiers (4-channel) / Reference 475a
Reference 475a

Reference 475a

4-Channel Full-Range Amplifier

Vendu à partir de 2007 actuellement

Produit prédécesseur: REFERENCE 7541A
Fait en: Netherlands

Documents et téléchargements

Caractéristiques du produit

Signal-to-noise ratio
85dBA (reference 1 watt into 4 ohms)
Dynamic power
117 watts at 2 ohms
Effective damping factor
6.3 at 4 ohms
Frequency response
10Hz – 100Hz (–3dB)
Maximum input signal
6V
Maximum sensitivity
100mV
CEA Rated
Yes
Amplifier Power (RMS)
180 watts x 2 channel @ 4 ohms, 14.4V supply and ≤1% THD + N
Amplifier Power (RMS)
75 watts x 4 channel @ 4 ohms, 14.4V supply and ≤1% THD + N
Signal-to-Noise Ratio
85dBA (reference 1 watt into 4 ohms)
Dynamic Power
117 watts @ 2 ohms
Effective Damping Factor
6.315 @ 4 ohms
Frequency Response
10Hz – 100kHz (-3dB)
Maximum Input Signal
6V
Input Sensitivity
MAXIMUM... 100mV
MSRP U.S.
$279.95 each
Dimensions (L x W x H)
14-3/16" x 9" x 2-11/16" (360mm x 229mm x 68mm)

4-Channel full-range amplifier with on-board electronic crossover and variable bass boost.

Efficiency is the benefit of the Infinity Reference Series Class D subwoofer amplifiers. A higher percentage of the power the amp extracts from the car’s charging system is converted into output to the speakers, and less is wasted as heat. That is really important if you're trying to provide power to a 1000-watt amplifier. Class D technology turns the analog input signal into a series of pulses that can be amplified more efficiently by transistors used as switches, rather than valves. They're either on and operating at their most efficient level, or they’re off. The pulses are converted back into an analog signal by an output filter.
All Infinity amplifiers are tested in accordance with CEA-2006, which provides a testing procedure to help customers compare amplifiers accurately – apples to apples. Specs are based on industry-accepted standards, rather than on the whims of amplifier companies’ marketing departments. Look for the CEA-2006 logo when comparing amplifiers, to be sure you’re getting the power you’re paying for.
Class AB full-range amplifiers offer audiophilequality performance and the best compromise between efficiency, low distortion, maximum available headroom and output power.
provides superior control and adjustability, compared to traditional bass-boost. DBO is a 2nd order high-pass filter that can be adjusted between 20Hz and 80Hz. The boost (or Q) adjustment boosts the signal above the highpass filter frequency. Used with a sealed box, it can help to increase output for more “fun” if it’s set to about 45Hz. If it’s used with a vented box, it should be set at or slightly below the tuned frequency of the box. That will prevent woofer unloading, and provide more output at the frequency where the box is tuned and the woofer’s excursion is minimized – where it can handle more power.
Reference Series amplifiers include 2nd order (12dB/octave) slopes and are continuously variable from 32Hz to 200Hz.
provides up to 12dB of boost at 50Hz in the Reference Series full-range amplifiers.
eliminate the need for additional solder-on or crimp-on terminals and provide an easy and reliable connection for power, ground and speaker wires.
eliminate the need for signal splitters.
The amount of bass in popular recordings differs greatly from track to track. Give your customer as much control as you see fit with the RLC. It varies the output of the amplifier from no output up to the maximum output level that you set with the input sensitivity control.

Images et vidéos

REFERENCE 475A - Black - 4-Channel Power Amplifier (75 watts x 4) - Hero
  • REFERENCE 475A - Black - 4-Channel Power Amplifier (75 watts x 4) - Hero
  • REFERENCE 475A - Black - 4-Channel Power Amplifier (75 watts x 4) - Hero
  • REFERENCE 475A - Black - 4-Channel Power Amplifier (75 watts x 4) - Front
  • REFERENCE 475A - Black - 4-Channel Power Amplifier (75 watts x 4) - Back

Vous ne trouvez pas ce que vous recherchez ?

Appelez-nous

Appelez-nous

Appelez-nous dès maintenant au : +32 (0) 28080136

Lundi - Vendredi: 09:00-18:00
Samedi - Dimanche: 10:00-16:00

Envoyez-nous un e-mail

Envoyez-nous un e-mail

Nous sommes disponibles du lundi au dimanche pour répondre à votre e-mail aussi vite que possible !

Envoyez-nous un e-mail
Discutez avec nous

Discutez avec nous

Lundi - Vendredi: 09:00-18:00
Samedi - Dimanche: 10:00-16:00

message

Contactez-nous par WhatsApp

Envoyez-nous un message ou cliquez- ici 

Lundi - Vendredi: 09.00-18.00
Samedi - Dimanche: 10:00-16:00