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Infinity Primus 1270B

Sealed enclosure with 12" subwoofer

Item # 108P1270BM

Infinity's Primus 1270B loaded enclosure gives you the impact of a 12" subwoofer for the deep, hard-hitting bass...

Infinity's Primus 1270B loaded enclosure gives you the impact of a 12" subwoofer for the deep, hard-hitting bass...

California customers:
Please click here for your Proposition 65 warning.

Item # 108P1270BM

In stock
$189.95

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About the Infinity Primus 1270B

Made for great sound

The bass battleground is littered with blown budget subwoofers that couldn't handle the daily abuse. Infinity wants your next sub to be a great one, and their Primus Series models offer all the benefits of their expertise at a very reasonable price.

Made for great sound

The bass battleground is littered with blown budget subwoofers that couldn't handle the daily abuse. Infinity wants your next sub to be a great one, and their Primus Series models offer all the benefits of their expertise at a very reasonable price.

Tough enclosure

Infinity's Primus 1270B loaded enclosure gives you the impact of a 12" subwoofer for the deep, hard-hitting bass you need. The sealed box is optimized for its subwoofer to guarantee the best possible performance, while black carpet protects the tough 5/8" medium-density fiberboard enclosure so it'll look good for years to come. The sub's polypropylene cone and rubber surround handle high power levels with minimal distortion, and the stamped steel frame gives this sub a firm foundation. The speaker's 4-ohm impedance is compatible with a wide range of amplifiers.

To drive this enclosure, we recommend a mono amplifier rated between 225 and 450 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.

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Product highlights:

  • sealed enclosure with 12" subwoofer
  • polypropylene cone with rubber surround
  • stamped steel frame
  • 5/8" medium-density fiberboard construction covered with carpet
  • 4-ohm impedance
  • handles up to 300 watts RMS (1200 watts peak power)
  • frequency response: 35-200 Hz
  • sensitivity: 91 dB
  • dimensions: 17-5/8"W x 14-1/2"H x 6-5/8"D1 x 10-3/16"D2
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # INFPRIMUS1270BAM

What's in the box:

  • Loaded 12" subwoofer enclosure
  • 2 Metal speaker guards
  • Owner's manual
  • Warranty information

Customer reviews

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Infinity Primus 1270B reviews

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More details on the Infinity Primus 1270B

Pat M.

Features & specs

General
Woofer Size (inches) 12
Speakers Per Box 1
Woofer Material Poly
Enclosure Type Sealed
Color Black
Pieces in System 1
Width (inches) 17-1/4
Height (inches) 14-1/2
Depth (inches) 7-5/8
Connector Type Threaded posts
Frequency Response 35-200 Hz
Power Range (Watts RMS) 300
Maximum Wattage 1200
Sensitivity 91 dB
Impedance 4 ohms
Parts Warranty 1 Year
Labor Warranty 1 Year
The Infinity Primus 1270B replaces these items:

Product Research

Features

Driver: The Infinity Primus loaded subwoofer enclosure features an Infinity Primus 1270B 12" subwoofer driver capable of handling 300 watts RMS (1200W peak). The heavy-duty 4 ohm subwoofer includes a stamped-steel frame and a rugged 2" diameter voice-coil that's been designed for daily use. A polypropylene cone and rubber surround provide deep powerful bass with minimal distortion.

Enclosure: The Infinity Primus 1270B enclosure has been designed for optimal use with the installed 1270B subwoofer driver. Made of 5/8" MDF (Medium Density Fiberboard) and covered in black carpet, the enclosure provides a solid foundation for the subwoofer driver, even at high volumes. Two steel bars are included that act as the "grille". These simply slip into the provided holes on the enclosure, protecting the driver from bumps and dings.

Terminals: Connection to the Primus 1270B subwoofer enclosure is done through a pair of threaded posts on the rear that can accept speaker wire up to 12 AWG.

Specifications:

  • Subwoofer: 12"
  • Power: 300W RMS / 1200 peak
  • Sensitivity: 91dB
  • Frequency Response: 35Hz - 200Hz
  • Impedance: 4 Ohms
  • Dimensions: Width - 17.250", Height - 14.50", Depth - 7.625" / 11.50" (includes grille bars)

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Customer Q&A

5 questions already asked

Q
What is the internal airspace of the subwoofer enclosure?
[ Alex  Dec 06, 2021 ]
1 answer
A
It should be 1.06 cubic feet based on its dimensions and thickness of the MDF used to make the box.
[ Paul  Dec 11, 2021 ]  Staff
Q
does this come with a remote? or something to control the volume/bass with?
[ Kayla  Dec 06, 2021 ]
4 answers
A
No, there is no remote or bass dial with this sub. You would have to control that with either your head unit or the amp that you use to power this sub.
[ GLENN  Dec 07, 2021 ]
A
No . It's only a speaker . It's Not self amplified .
[ KEVIN  Dec 06, 2021 ]
A
This is a passive sub that will require an amplifier to function. Many amps on the market offer volume knobs, including 5 channel amps that offer volume control on the 5th channel. Hope this helps!
[ cdicorpo  Dec 06, 2021 ]
A
No. That is usually a feature of the amp driving this sub
[ jason  Dec 06, 2021 ]
Q
Which Infinity amp will work best with this single sub?
[ Phane  Dec 31, 2019 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Krissy  Jan 28, 2020 ]  Staff
Q
I have an Alpine F240 (yes, I know its old, but it still works fine) With four Infinity Kappa 60.2. Can I use a Infinity Primus 1270B with tihs same AMP?
[ angel  Sep 19, 2019 ]
1 answer
A
Hi Angel, thank you for your question. While the Alpine F240 is a great 4 channel amp, you will need to use an additional amp in order to power the Infinity Primus 1207B. Please chat with an Advisor online or by phone at 1-800-324-9695, they will be happy to find a subwoofer amp that will work for your application.
[ Jess  Oct 10, 2019 ]  Staff
Q
What amp is best for the Prius 1270b. I have a kenwood 8150d mono but it doesn't seem to pair very well as I believe the kenwood is better with a 2 ohm load. With the sub being svc 4 ohm im wondering which type of amp would be better?
[ Trever  Jul 31, 2019 ]
1 answer
A
Thanks for your question. For information on selecting the best amp for your subs I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They will be able to help determine the differences between the amp models and help you make the best choice for your system.
[ Krissy  Aug 13, 2019 ]  Staff
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