Name: Infinity REF1200S
Brand: Infinity
SKU: 108REF120S
Price: 219.99 CAD
Availability: InStock
Rating: 5 (15 reviews)

OVERVIEW

by Crutchfield's

Low-profile design

Today's compact cars offer less space for a component subwoofer, but Infinity doesn't want you to miss out on the bass you deserve. They designed the Reference Series REF1200S 12" subwoofer to fit into today's smaller enclosures without sacrificing on sound. With response that goes down to 27 Hz, you'll definitely hear the low frequencies you've been missing.

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Low-profile design

Selectable impedance

Unlike most dual-voice coil woofers which allow you to wire the two coils for different impedances, this Infinity sub features a switch which flips between 2 and 4 ohms, the most commonly used settings for a single sub. You'll be able to extract every last watt from your amplifier without compromising stability and thermal safety margins.

Reliability testing

Infinity tests every model under extreme conditions that would break lesser speakers. They freeze them, bake them, shake them, blast them with ultraviolet light and drive them at full power for days to make sure your audio investment lasts for years. Get ready for big bass in a small space.

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Product highlights:

12" shallow-mount component subwoofer
polypropylene cone with rubber surround
handles up to 250 watts RMS (1000 watts peak)
impedance: 2 or 4 ohms (selectable)
frequency response: 27-175 Hz
sensitivity: 92 dB
top-mount depth: 3-1/4"
sealed box volume: 0.75 cu. ft.
ported box volume: 1.75 cu. ft.
grille not included
warranty: 1 year
Our 60-day money-back guarantee
MFR # REF1200S

What's in the box:

Infinity REF1200S owner's manual

One 12" Subwoofer
Owner's manual
Technical Data sheet

Infinity REF1200S reviews

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DETAILS

Researched by Crutchfield's Pat M.

Features & specs


Size	12 -inch
Impedance	---
Cone Material	Poly
Surround Material	Rubber
Ideal Sealed Box Volume (cubic feet)	0.75
Ideal Ported Box Volume (cubic feet)	1.75
Port diameter (inches)	4
Port length (inches)	10
Free-Air	Yes
Dual Voice Coil	No
Sensitivity	92 dB at 2.83 volts
Frequency Response	27 - 175 Hz
Max RMS Power Handling	250
Peak Power Handling (Watts)	1000
Top Mount Depth (inches)	3 1/4
Bottom Mount Depth (inches)	3 15/16
Cutout Diameter or Length (inches)	11 1/8
Vas (liters)	97.56
Fs (Hz)	22.82
Qts	0.54
Xmax (millimeters)	7.65
Parts Warranty	1 Year
Labor Warranty	1 Year

The Infinity REF1200S replaces these items:

Infinity 1260w

Product Research

Features

Impedance: The Reference 1200s has a Selectable Smart Impedance switch (SSI), allowing you to easily change the speaker impedance. Choose between 2Ω and 4Ω.

Sealed Box: Infinity recommends a sealed enclosure with an internal volume of 0.75 ft³. Sealed enclosures provide the most control over a woofer, will handle more power, and provide more accurate sonic reproduction, making them suitable to all types of music.

Ported Box: Infinity recommends a ported enclosure with an internal volume of 1.75 ft³ with one 4" diameter x 10" long port. Ported (or vented) enclosures provide better efficiency in the 40-60Hz range, and are suitable for use with smaller amplifiers, giving you more bass output from less power. However, this efficiency comes at the expense of sound quality at low frequencies (40Hz and below), and control. A subsonic filter is recommended when using a ported enclosure.

Free-Air: While the Reference 1200s can be mounted in free-air (infinite baffle), the power handling decreases by half.

Bandpass Box: Infinity recommends a bandpass enclosure with a sealed chamber volume of 1 ft³ and a ported chamber volume of 1.75 ft³ with one 4" diameter x 7.5" long port. Bandpass enclosures often provide the most output available from any amplifier and subwoofer combination, but at the expense of sonic accuracy.

Thiele Small Parameters: The Thiele Small Parameters change based on the impedance setting:

2Ω:
- Revc: 1.84Ω
- Levc: 0.65 mH
- Sd: 502.73 cm²
- Bl: 9.02 Tm
- Vas: 97.43 l
- Cms: 274 μm/N
- Mms: 177.46 g
- Fs: 22.80 Hz
- Qms: 6.24
- Qes: 0.57
- Qts: 0.53
- Xmax: 7.65 mm
4Ω:
- Revc: 4.16Ω
- Levc: 0.71 mH
- Sd: 502.73 cm²
- Bl: 12.87 Tm
- Vas: 97.56 l
- Cms: 275 μm/N
- Mms: 177.02 g
- Fs: 22.82 Hz
- Qms: 3.57
- Qes: 0.64
- Qts: 0.54
- Xmax: 7.65 mm

The Infinity REF1200S replaces these items

Infinity 1260w

Reference Series 12" 4-ohm subwoofer

18 reviews

polypropylene cone with large-roll rubber surround
23-400 Hz frequency response
100-300 watts RMS power range

ACCESSORIES

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8 questions already asked

would 2 of these this pair with a RockFord Fosgate R750 1D with .67 cubic ft air space per woofer?

[ Peter Apr 17, 2020 ]

2 answers

you can do the .67 cubic ft if that is for each sub but i would recommend it is ported. it will hold back the sound some. air volume for it is important. as for the amp, you will need either a 2 or 4 ohm amp. infinity makes one that will power 2 of these subs.

[ William Apr 21, 2020 ]

I would think so, I was doing a lot of math to get the .75 Infinity wanted . I got it under the back seat of my Silverado. But I had to step the box and splay the angles to get it . If my material was thicker and I lost some area I still think they would sound fine . I love it. Infinity speaker's everywhere and J B L pushing them. Good luck!

[ KEVIN Apr 18, 2020 ]

Air space required?

[ Robert Oct 02, 2019 ]

4 answers

I have a pair in a shallow enclosed box, they sound great

[ FREDRICK Oct 03, 2019 ]

I have 2 of these in a shallow mount truck box and they rattle my eyeballs. I believe my box is 1.9 cubic feet

[ DANIEL Oct 03, 2019 ]

they want .75 cubic ft for sealed box. To get this I went under drivers seat in my 73 Pontiac to get this. Works fine , love the speakers , but my seat feels like the base drum on some tunes.

[ KEVIN Oct 03, 2019 ]

Very little!!!

[ Andrew Oct 02, 2019 ]

What is a good amp for this subwoofer? Just a single sub setup.

[ Danny Nov 18, 2018 ]

1 answer

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 Nov 21, 2018 ] Staff

I just bought this sub , what dimensions should I build to ? I have a 2001 f250 crew cab with limited space behind back seat . I have a kicker cx300.1 mono amp for this . I prefer a sealed box and tight hitting bass since I mainly listen to country and classic rock .

[ James Oct 16, 2018 ]

1 answer

There is a spec sheet in the box. I put mine under a silverado rear seat on the 40% side. Far too small for the sub but still sounded decent

[ Sawyer Oct 22, 2018 ]

Planning to make a sealed home sub using Infinity ref 1200s. My room size is 4mx4m. Please suggest cabinet size?

[ Praveen Aug 06, 2018 ]

1 answer

Infinity recommends a sealed enclosure with an internal volume of 0.75 ft³ for their REF1200S subwoofer. For more details or to discuss further, please contact an Advisor directly by phone (888.955.6000) or online chat. Hope that helps!

[ Larry Aug 10, 2018 ] Staff

Set switch for 2 Ohm. DVM shows 7.1 installed in sealed box. Soldered 16 gauge wires to terminal cup. Crimp on female slides. Any thoughts?

[ Chris Jul 16, 2018 ]

2 answers

Crutchfield replaced the speaker. Now the new one reads the correct ohms.

[ Chris Jul 21, 2018 ]

I set mine to 2 ohms, used 2 enclosed box with an alpine amp, used 14 gauge wire with connections I soldered and they sound great

[ FREDRICK Jul 20, 2018 ]

I have a RF P400-2 amp. If I bridge it, what ohm setting do I chose on the subwoofer?

[ ESAU Jan 30, 2018 ]

1 answer

I believe that is a 2 ohm amp.

[ KRIS Jan 31, 2018 ]

what type of box will work best and where can I find diagrams instructions and videos?

[ craig Apr 01, 2015 ]

1 answer

I forwarded your question to an Advisor and they responded with the following: There are several enclosures available for the Infinity REF1200S. The "best" box depends on what you are trying to achieve. Some things to consider: Do you have 1 sub or 2? Do you want a sealed or a ported box (clean, tight bass vs. louder, "boomy")? How much space do you have in your vehicle to accommodate the exterior dimensions? You can click on the subwoofer, and then click on the Accessories tab to see the pre-made enclosures (both sealed and ported) that will accommodate the Infinity. You can also check out this article on building box if you want to go that route: http://www.crutchfield.com/learn/learningcenter/car/subwoofers/box_building.html?showAll=N If you provide information regarding your vehicle (year, make, model, premium sound vs stock, etc) to an Advisor via email or chat, the we'll be able to advise you on the space you have available for an enclosure. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.

[ Krissy Apr 10, 2015 ] Staff

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