Boa, mais eu acho que vou comprar na gringa mesmo. Tem muita promoção rolando.
Segue umas ai:
Alpine PDX-F6 ($450)
Power Output
150W x 4 @ 4 Ohms (@ 14.4V C%THD+N)
150@ x 4 @ 2 Ohms (@ 14.4V C%THD+N)
300@ x 2 @ 4 Ohms (@ 14.4V C%THD+N)
General Features
Crossover: Variable, 30-400Hz (-12dB / oct ), Low-Pass/High-Pass/OFF Selectable
Power Requirements: 14.4V DC (11V to 16V)
Input Sensitivity: 0.2V to 4.0V (For Rated Power)
Cable size: 4 AWG (BATT and GND), 12 AWG (Remote), Up to 8 AWG (Speaker)
Frequency Response: 5 Hz - 100 kHz / 0 dB ~ -3dB (Reference: 1 W into 4 ohms
Amplifier Type: Class-D (Digital)
Channel Design: 4/3/2 Channel
Thermal Protection:
Low-battery Protection:
Power Supply Design: DC-DC PWM Power Supply
Board Circuitry: STAR Ciruit
Current Protection: Auto Over-Current Protection
Power Indicator: Top Mounted Blue LED Power/Status Indicator
Crossover: Adjustable High-Pass, Low-Pass
Pre-Amp Stage: Discrete
Board Design: 6-Layer Glass Epoxy PC Board
Gain Control: Adjustable
Alpine PDX-F4 ($325)
Power Handling
Per channel into 4 Ohms: (@14.4V Ƈ%THD+N) 100W x 4
Per channel into 2 Ohms: (@14.4V Ƈ%THD+N) 100W x 4
Bridged 4 Ohms: Bridged into 4I? (Ƈ%THD+N) 200W x 2 CEA-2006 Power Rating: (4/2 I?@14.4V Ƈ%THD+N), S/N 98dBA (Ref. 1W into 4 I?): 100w x 4
General Features
Amplifier Type: Class-D (Digital)
Channel Design: 4/3/2 Channel
Thermal Protection:
Low-battery Protection:
Power Supply Design: DC-DC PWM Power Supply
Board Circuitry: STAR Ciruit
Current Protection: Auto Over-Current Protection
Power Indicator: Top Mounted Blue LED Power/Status Indicator
Crossover: Adjustable High Pass, Low Pass
Pre-Amp Stage: Discrete
Board Design: 6-Layer Glass Epoxy PC Board
Gain Control: Adjustable
Connectors: Quick Disonnect Terminals (Power Terminal and Speaker Terminals)
Terminal Layout: One-Sided
Mounting Design: Easy Stacking and Clean-look installation
Bass Control: Remote Bass Control (sold separately)
General Specifications
Power Requirements: 14.4V DC (11V to 16V)
Input Sensitivity: 0.2V to 4.0V (For Rated Power)
Cable size: 4 AWG (BATT and GND), 12 AWG (Remote), Up to 8 AWG (Speaker)
Frequency Response: 5 Hz - 100 kHz / 0dB ~ -3dB (Reference: 1 W into 4 ohms)
Speaker Impedance: 4 or 2 I?
Signal to Noise: CEA 2006 S/N Ratio (IHF A Weighted, Reference: 1W into 4I) 98 dBA
Crossover: Variable, 30-400Hz (-12dB / oct ), Low-Pass/High-Pass /OFF Selectable
Dimensions
JL Audio XD400/4v2 ($350)
XD Series 4-Channel Class D Car Amplifier
Wired remote control input (Control Sold Separately)
Advanced Rollback Protection system prevents thermal shut-downs
4 or 2 channel operation
Speaker-level (high-level) inputs with signal sensing for automatic turn-on
Power Output: (RMS)
75W x4 @ 4-ohm
100W x2 @ 2-ohm
200W x2 @ 4-ohm [bridged]
Alguem ja viu algum tocar? Ou alguma outra sugestão