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Soundstream Di475.1

475W, Class D Monoblock Amplifier (Di 475.1)

4.5

(2 reviews)

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For those looking to install a basic subwoofer, you are going to need a solid and reliable amplifier. The Soundstream Di475.1 is just that, a simple and reliable amplifier. Wired at 4 ohms, the amplifier will produce a stable 350 watts to a single channel. When wired down to 2 ohms, the amplifier is rated at 475 watts. That is plenty of power for a basic subwoofer that can fill in that low bass without overbearing the rest of the speakers. The Soundstream amp is made using a Mil-Spec fiberglass circuit board and powered by a PWM MOSFET power supply. If you don't have an aftermarket stereo, or just prefer to use speaker level inputs for your amplifier, this amplifier will be compatible and includes the speaker-level input harness. The inputs and screw terminals are nickel plated for optimal signal transfer and the heatsink keeps the amp running cool. For those just getting into the world of car audio, this is a fantastic amp that will power your basic subwoofers. The Soundstream Di475.1 is named the Extreme Bass Machine for a reason!

  • Extreme Bass Machine Single-Channel Class D2 Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 350 watts x 1 chan.
    • 2 ohms: 475 watts x 1 chan.
  • PWM MOSFET power supply
  • Wired remote bass level control included
  • LED power indicator
  • Selectable bass boost (0, 6, 12 dB @ 45 Hz)
  • 3 Stage protection circuit
  • Single channel operation
  • Speaker-level inputs with signal sensing for automatic turn-on
  • 1 Set of preamp RCA outputs
  • SMD Technology
  • Mil-Spec fiberglass circuit board
  • True digital switching
  • High rail voltage
  • Compact chassis and design
  • 18dB Crossover centered at 80 Hz
  • Heavy duty aluminum alloy heatsink for heat dissipation
  • Nickel-plated RCA level inputs
  • Nickel-plated screw terminals
  • Frequency response: 50-150 Hz
  • Dimensions: 11-3/4"L x 8-3/4"W x 2-1/8"H
  • 8-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
Learn more about the Di475.1 at our blog.
Power Specifications - Full Range Channels
RMS Power @ 4 ohms350 watts x 1 channel
RMS Power @ 2 ohms475 watts x 1 channel
RMS Power @ 1 ohmN/A
Bridged RMS PowerN/A
Peak Power OutputN/A
Amplifier Specifications
Amplifier ClassD
Number of Channels1 - Mono
Total Peak Power OutputN/A
Total RMS Power Output475 watts
Maximum Input Gauge Size8 AWG
Minimum Impedance Unbridged2 ohms
Minimum Impedance BridgedN/A
THD at Rated RMS Power0.5%
Speaker Level InputsYes
Preamp Outputs1 pair
Built-in CrossoverN/A
High-Pass Crossover FrequencyN/A
Low-Pass Crossover FrequencyN/A
Subsonic FilterN/A
Signal-to-Noise Ratio98 dB
Channel SeparationN/A
Bass Boost0 - 12 dB
Bass/Gain RemoteYes
Fan CooledNo
Fuse Rating25A x 2 
CEA-2006 CompliantNo
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration1 year
Labor Warranty Duration1 year
Warranty ProviderManufacturer
Customer Review Summary for Soundstream Di475.1
Average Customer Rating is 4.5 out of 5 stars:
4.5
based on 2 Reviews
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Rating Distribution:
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50%
4 star:
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3 star:
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what's this?
Average Attributes Rating:
Durability
5.0
Value
5.0
Features
4.0
Design
4.5
Usability
5.0
what's this?
Most Helpful Customer Reviews:
March 18, 2010 Great amp
Review by
Fran from Killeen, Texas
Overall
Durability
Value
Features
Design
Usability
I would not hesitate to buy another one of these amps, or to strongly encourage a friend to purchase one . I have had several car amps in the past but none like this one, great value, a price you cannot beat. would highly recommend this amp to anyone looking for a great amp at a very reasonable price ,Thanks.
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September 21, 2009 not bad
Review by
Zone from Zion,IL
Overall
Durability
Value
Features
Design
Usability
its a good starter amp. it has power but when it starts it makes a loud buzzing sound for about 45 seconds then it quiets down. I think its just the capacitor in it charging. no worries. it also is a mono amp but it has two channels it is purely for speaker configuration.i have it hooked up to an old Fosgate Punch P2 12" in a vented box. sounds good at high levels not high on the db meter though.all in all "decent"
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Amplifier Wiring Kits
Get the wires you need to properly install and power your car amp.
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Kicker ZCK4Kicker ZCK4
Complete 4 Gauge Amp Wiring Kit with RCA Interconnect Cables and Speaker Wire!
$79.99
StreetWires ZN1K-04StreetWires ZN1K-04
4 Gauge (AWG) ZN1 Series Single Amplifier Installation Kit for Systems up to 1000 Watts
$37.99
Kicker PKD4Kicker PKD4
Dual Amplifier 4 Gauge Amp Installation Kit w/ Distribution Blocks
$99.99
Gauge Adapter
In situations where the input gauges on the amplifier is smaller than the power/ground cable gauge, one of these gauge adapters should be used. They are easy to use and enable your amplifier to to still receive all the power that it requires.
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Monster Cable Gauge Reducer (4 AWG to 8 AWG)Monster Cable Gauge Reducer (4 AWG to 8 AWG)
Chrome plated gauge reducer allows 4 AWG cable to fit in 8 AWG inputs.
$6.00
Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
 ProductPriceAdd?
Kicker XW1220 Speaker WireKicker XW1220 Speaker Wire
12 Gauge Wire - 20 ft. of Dual Twist Speaker Cable with Sleeves for a Clean Install
$24.99
StreetWires SCP1215BL - 12 AWG Speaker WireStreetWires SCP1215BL - 12 AWG Speaker Wire
12 Gauge Wire - 15 ft. of Speaker Cable with Twisted Construction
$19.99
RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Kicker Z-Series RCA Interconnect CablesKicker Z-Series RCA Interconnect Cables
16.5 ft. of 2-Channel Kicker Interconnects with twisted pair conductors, gold plated contacts, and hyper-flex technology for easy installation!
$14.99
Directed Silver Series Audio Interconnect Cable ** LOW PRICE **Directed Silver Series Audio Interconnect Cable ** LOW PRICE **
20 ft. of 2-Channel RCA Interconnect cable with twisted pair construction.
$3.99
Monster Cable 300 Series XLN+ Audio Interconnect CableMonster Cable 300 Series XLN+ Audio Interconnect Cable
16.4 ft. of 2-Channel Monster Cable with XLN (Xtra Low Noise) construction, 6-cut turbine MirrorChrome connectors, and 2-way time correct windings for the ultimate RCA cable!
$45.00
Capacitors
Capacitors store energy for the amplifier to use on demand, thereby assisting in the elimination of dimming lights during peak power surges during use.
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Raptor C1F ** SPECIAL PRICE **Raptor C1F ** SPECIAL PRICE **
True 1.0 Farad Car Audio Capacitor for up to 1000W Max
$31.99
e2 ECAP1 by Scosche - Mid-Level 1 Farade2 ECAP1 by Scosche - Mid-Level 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$43.99
Rockford Fosgate RFC1D - Top of the Line 1 FaradRockford Fosgate RFC1D - Top of the Line 1 Farad
Digital 1.0 Farad Car Audio Capacitor for up to 1000W Max
$104.99
Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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StreetWires FB4StreetWires FB4
4 AWG / 4 Gauge Firewall Bushing
$7.99
Kicker DB1448 (09DB1448) - Top of the Line!Kicker DB1448 (09DB1448) - Top of the Line!
Distribution Block with Two 1/0 or 4 AWG Inputs and Four 4 or 8 AWG Outputs
$18.99
Professional Installation for your Car Power AmplifierProfessional Installation for your Car Power Amplifier
Covers labor charges through our professional installer network.
$89.99
Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
 ProductPriceAdd?
AutoSound 2000 CD-104AutoSound 2000 CD-104
The ultimate amplifier level setting disc used for evaluation of audio components
$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High Frequency Test CD specifically designed for the set-up and evaluation of sound system imaging and placement.
$12.99
AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.
$12.99

Product Summary

Manufacturer: Soundstream
Model number: Di475.1
UPC: 709483025899
Weight: 8.00 lbs
Internal SKU: di4751
Internal product ID: 19812
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Customer Testimonial

You helped me during my shopping experience and answered my questions very quickly. For that, I thank you!

- Yoav P. from Jerusalem

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