Is that silvery product picture correct? The description shows an entirely different product (which matches the manufacturer's website)

This amp says T400-4 on the face. Although the amp that I had has a completely different look. I think this may be an older design of the RF amps. Power series are good amps and the only type I run... I have been running a Power 1050s since 2001. I don't even bother with Punch or even Prime series.

My HU has 2.5v preamp votage. Setting amp gain at 6 or above gives me audible hiss at any volume. The higher the more. What should I do to get louder?

I had the same issue until I followed sonic electronix guide to Amp tuning. I followed the guide and the hissing stopped. Seems like I turned up the gain too much. At 75% volume on your HU, you shouldn't hear any hissing if no music is on or plugged in. In this case you tuned your amp correctly to your HU. To get it over with you can spend the money to have a professional do so, but I suggest you to follow up some guides on the internet. The sonicelectronix amp guide is a great guide for tuning your amp with your HU. Just Google guides and it will help you.

How many amps does it need?

Here is some information about the current draw of the T400-4 Recommended Fuse: 60 Amps Average Current Draw (13.8V Music): 30 Amps Max. Current Draw (13.8V Sinewave): 60 Amps Suggested Alternator: 75 Amps Thanks for your interest in Rockford Fosgate!

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T400-4

Product ID: 1617327

Details

Brand
Rockford
Item dimensions L x W x H
13.66 x 8.14 x
Manufacturer
Rockford
Mounting Type
Car Mount
Voltage
12 Volts

⚡400 Watts max power output

🔄2 or 4 channel versatile config

🎚️Variable Punch EQ +18dB boost

Bs.10649

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Description

🎵 Unleash your car’s true sound potential with power and precision!

COMPACT YET MIGHTY - Sleek 2.14” x 8.14” x 13.66” design fits tight spaces without sacrificing power.
FLEXIBLE CHANNEL MODES - Switch effortlessly between 2 or 4 channel setups to match your audio needs.
PRECISION SOUND TUNING - Customize your bass and treble with a +18dB Punch EQ and 24dB/octave crossover.
ROCK SOLID RELIABILITY - Backed by Rockford Fosgate’s legendary build quality and a 2-year warranty.
POWER PACKED PERFORMANCE - Delivers up to 400 Watts of crystal-clear sound to energize your ride.

The Rockford Fosgate Power T400-4 is a high-fidelity 400-Watt 4-channel Class A/B amplifier designed for versatile audio setups. It supports 2 or 4 channel configurations with stable bridging options, features advanced Punch EQ and Butterworth crossover for precise sound tuning, and comes in a compact form factor. Trusted for durability, it includes a 2-year parts and labor warranty.

Specifications

ASIN	B0012Q9976
Best Sellers Rank	#249,455 in Electronics ( See Top 100 in Electronics ) #583 in Car Multichannel Amplifiers
Brand	Rockford Fosgate
Built-In Media	T400-4
Customer Reviews	4.4 out of 5 stars 67 Reviews
Item Type Name	Rockford Fosgate T400-4 Power 400 Watt 4-Channel Amplifier
Item Weight	10 Pounds
Manufacturer	Rockford Fosgate
Mfr Part Number	T400-4
Model Number	T400-4
Unit Count	1.0 Count
Warranty Description	2 year parts and laborand labor.

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Bs.10649

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

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