free shipping at parts express

Dayton Audio SUB-1200 12" 120 Watt Powered Subwoofer

Brand:|Model: SUB-1200|Part # 300-629

The Dayton Audio SUB-1200 12" powered subwoofer system is capable of delivering realistic, room-shaking home theater bass effects—even in larger rooms.
In Stock
List Price$229.99
Regular Price$148.00
You Save14%
Sale Price
Part # 300-629
  • Downward-firing flared port design for clean, powerful bass
  • Selectable "Auto-on" mode
  • Heavy duty long-throw 12" woofer
  • Perfect for small home theaters or listening rooms
  • Unobtrusive textured black vinyl finish

Product Details

Dayton Audio SUB-1200 12" 120 Watt Powered Subwoofer

Add thrilling low-frequency effects to your home cinema experience!

The Dayton Audio SUB-1200 12" powered subwoofer system is the perfect addition to any home theater system. This powered sub features a bottom-firing, flared port, bass reflex design for reduced port noise and increased bass response. It also utilizes a long-throw 12" woofer and up to 120 watts of house-shaking power.

Onboard connectivity makes this an easy-to-add and easy-to-adjust solution

The amplifier features high and low level inputs and high level outputs, a phase switch, independent volume control, an auto on/off switch (activated by an input signal) and a variable 12 dB electronic low pass filter. This compact sub is finished in an unobtrusive black vinyl that will complement any decor.

Power and punch to spare, but from a ridiculously compact enclosure

Specifications: • Power output: 120 watts RMS • Frequency response: 25-140 Hz • Box design: Ported • Inputs: RCA line level & speaker level • Outputs: Speaker level • Crossover frequency control: Continuously variable from 40 Hz to 140 Hz @ 12 dB/octave • Phase switch • Auto on/off • Power requirements: 120 VAC, 60 Hz • Dimensions (rubber feet included): 16-3/4" H x 16-3/16" W x 17-3/4" D.

Are you ready to cut the cord?

New! Add the 300-580 Dayton Audio Sub-Link XR wireless subwoofer kit to any Dayton Audio powered subwoofer, for limitless placement possibilities and great bass without wires! Click here to go wireless.


1. Line Level Inputs
The line level inputs are used to connect pre-put or preamplifier outputs directly to the subwoofer amplifier's internal crossover. These inputs are summed to mono. This is the preferred way to connect the subwoofer amplifier. If you have a mono line level signal from a "Pro-Logic" or "Dolby Digital" receiver use the right "red" input. Note: If a LFE mono output is connected, set the crossover point to maximum.

2. High Level Inputs
If preamplifier outputs are not available, use the high-level (speaker) inputs. The speaker level inputs can be connected directly to the amplifier by inserting the speaker wire.

3. High Level Outputs
There are also high level outputs which can be used to connect to main speakers or to another powered subwoofer with high level inputs. Note: High level outputs are paralleled to the high level inputs with no high pass filter.

4. Crossover Frequency Control
Continuously variable from 40 Hz at 12 dB/octave. Set the frequency control to where the audio does not sound "muddy", normally between 60-80 Hz. Note: If a LFE mono output is connected set the crossover point to maximum.

5. Gain Control
Adjusts the output level of the subwoofer. Set the level to where the bass frequencies blend with the other speakers. Note: Most people have a tendency to set the level too high, which makes the audio sound "boomy".

6. Phase Switch
Selectable between 0° and 180°. This assists subwoofer placement. The correct position will be the one that provides the most apparent bass output.

7. Power Switch (Auto On/Off)
When the power is in the auto position, the amplifier will automatically turn on when a signal is present. Note: In auto/off mode, the power on LED is always on (red), even when amp is in rest mode (off). The power LED will turn green when the unit is activated.

Product Specifications
  • Woofer Diameter12"
Dayton Audio SUB-1200 12" 120 Watt Powered Subwoofer
  • BrandDayton Audio
  • ModelSUB-1200
  • Part Number300-629
  • UPC844632094118
  • Product CategoryPowered Subwoofers
  • Unit of MeasureEA
  • Product Rating
    (206 Reviews)
  • Weight44.65 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Dayton Audio SUB-1200 12" 120 Watt Powered Subwoofer
in the Powered Subwoofers product category.


Dayton Audio SUB-1200 12" 120 Watt Powered Subwoofer


Parts Express FacebookParts Express TwitterParts Express YouTubeParts Express PinterestParts Express SpotifyParts Express Instagram
Live Chat Software