Power and style

Enjoy lots of power and superb sound, all wrapped up in a tough-looking case that'll add some style to your car audio system. The Blaupunkt GTA 270 SF 2-channel car amplifier puts out 70 watts RMS per channel, great for driving a pair of full-range speakers or components. In mono mode, you can run a subwoofer with up to 200 watts RMS of power. The high- and low-pass filters let you contour the sound to get maximum performance from your speakers or subs.

Product Highlights:

  • 2-channel car amplifier
  • 70 watts RMS x 2 at 4 ohms (100 watts RMS x 2 at 2 ohms)
  • 200 watts RMS x 1 bridged (4-ohm stable in bridged mode)
  • adjustable low-pass filter (50-250 Hz)
  • switchable high-pass filter (80 Hz)
  • variable bass boost (0-12 dB at 45 Hz)
  • preamp inputs and outputs
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 20A x 1
  • 12-1/4"W x 2-1/16"H x 7-13/16"D
  • warranty: none (Crutchfield's 60-day satisfaction guarantee applies)
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Hands-on research

What's in the box?

Download owner's manual

  • Two channel amplifier
  • Two 20-amp ATO fuses (1 installed/ 1 spare)
  • Four 3/4" Self-tapping screws
  • Owner's manual (English/ German/ French/ Spanish/ 18 other languages)

Product Research

Controls
Connections

Controls

Level Control: rotary gain control; continuously variable from 100 mV to 8 V

Crossover Mode: three position switch; Low Pass, Flat (crossover is bypassed), High Pass (fixed at 80 Hz)

Low Pass Crossover Frequency: continuously variable from 50 to 250 Hz

Bass Boost: rotary control; 0-12 dB; centered at 45 Hz

Connections

Power/Ground: screw terminals; 0.5" wide, 8 gauge wire recommended

Remote Turn-on: screw terminal; 0.34" wide

Speaker Terminals: two pair of screw terminals; 0.34" wide

Line Level Input: one pair of stereo RCA jacks

Line Level Output: one pair of stereo RCA jacks

Fuse: one 20-amp ATO fuse

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Blaupunkt GTA 270 SF Reviews

Average Customer Review:

4 reviews
Review this product
Great Gear Giveaway

Submit a review and then enter to win a $500 rewards card

(0)
(0)
(0)
(0)
(0)

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

For the price, not bad.

Written By JoelMc, Bowling Green, KY on Wednesday, January 30, 2013

Crutchfield Customer Review (What's this?)

I had an MTX Thunder amp that went bad. I needed a comparable amp to drive an 8" Memphis Audio sub in a sealed enclosure. I bridged the Blaupunkt, and it gives off plenty of power. I'm running it direct from a factory stereo, with an LOC, so it's not the cleanest signal. The amp's built in crossover doesn't cut it.

Pros: Price. Power. Design(it looks alright if that matters)

Cons: Not a great Crossover.

Powerful amp in a small package

Written By Nihilus, Port Washington, WI on Wednesday, January 16, 2013

Crutchfield Customer Review (What's this?)

The Blaupunkt GTA 270 blew me away on how much power it provided my 10" subwoofer. The price was fantastic as well. Extremely satisfied with my purchase. I just love turning up the radio in my SUV now. Thanks Crutchfield!

Pros: Power, price, funtionality

Cons: none

Great Amp

Written By Mike, El Dorado Hills, CA on Friday, January 04, 2013

Crutchfield Customer Review (What's this?)

Amp works great. 200RMS for a single sub is a good amount of power. The fact that it is bridgeable and has an electronic crossover built in makes it amazing at this price point. Used this with the Blaupunkt 12" Sub and it's a great combo. Recommended.

Pros: price, crossover, bridgeable

Cons: none so far.

Suprised

Written By JM, Springfield il on Wednesday, January 02, 2013

Crutchfield Customer Review (What's this?)

I had extremely low expectations for this amp... I needed a cheap amp for one sub, and surprisingly this worked. Bridged and ran with kicker. Hit pretty good. Running over half will distort, but it worked pretty good. For entry level paired with one sub, it worked.

Pros: Good value

Cons: Good value

Get everything you’ll need to enjoy your new Blaupunkt GTA 270 SF

You'll need an amp wiring kit to install your new amplifier, as wiring is not included.
Bring the music from your amp to your speakers.
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
For multi-amp systems, you'll need a separate fuse holder.
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
The right tools will make the installation easier.
Have your new amplifier put in by a qualified professional in your area.
T-Spec 8PK Installation Kit

T-Spec 8PK Installation Kit

8-gauge amplifier wiring kit — includes speaker wire

Item #: 1208PK

(6)

$59.99
Add to Cart
Rockford Fosgate RFK8i

Rockford Fosgate RFK8i

8-gauge amplifier power and signal wiring kit

Item #: 575RFK8I

(30)

$74.99
Add to Cart
Rockford Fosgate RFK8

Rockford Fosgate RFK8

8-gauge amplifier power wiring kit

Item #: 575RFK8

(6)

$64.99
Add to Cart
Kicker PK8

Kicker PK8

8-gauge amplifier power wiring kit

Item #: 206PK8

(1)

$79.99
Add to Cart
EFX PA8BX Wiring Kit

EFX PA8BX Wiring Kit

8-gauge amplifier wiring kit — includes 2-channel patch cable

Item #: 142PA8BX

(4)

$49.99
Add to Cart
T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

(13)

T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

(30)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(51)

T-Spec 2-Channel RCA Patch Cables

T-Spec 2-Channel RCA Patch Cables

Available in 7 different lengths (17-foot)

Item #: 120RCA172

(27)

$19.99
Add to Cart
EFX 17-foot RCA Patch Cable

EFX 17-foot RCA Patch Cable

Item #: 142A17C

(55)

$7.99
After $2.00 Savings Add to Cart
EFX CFHG4 Fuse Holder

EFX CFHG4 Fuse Holder

In-line AGU fuse holder accepts 4- to 8-gauge wire

Item #: 142CFHG4

Rockford Fosgate RFFAGU Fuse Holder

Rockford Fosgate RFFAGU Fuse Holder

Platinum-plated AGU fuse holder
Fits 4- or 8-gauge cable

Item #: 575RFFAGU

(25)

$10.99
Add to Cart
T-Spec Capacitor

T-Spec Capacitor

1.5-farad capacitor with red LCD meter

Item #: 12015DDC

(11)

$79.99
Add to Cart
S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100

(15)

$19.99
Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL

(52)

$24.99
Add to Cart
Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533

(33)

$12.99
Add to Cart
Metra Crimp Tool and Connectors

Metra Crimp Tool and Connectors

Package contains crimp tool and over 150 pieces

Item #: 120CRIMPKT

(15)

$19.99
Add to Cart
S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650

(69)

Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042

(8)

$49.99
Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL

(2)

$29.99
Add to Cart
InstallCard: Amp or Equalizer

InstallCard: Amp or Equalizer

Prepaid professional amplifier or EQ installation

Item #: 597421003

(18)

$79.99
Add to Cart