Rockford Fosgate POWER T1S1-12 subwoofer
12", 600 W RMS, 84 dB, 1 Ω
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More about the product
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Rockford Fosgate POWER T1S1-12 subwoofer
Need bass but don't have enough space? Or more power than your low-profile subwoofer? The T1 Slimline series subwoofers are not just ordinary low-profile subwoofers, on the contrary - they have been specially designed to have almost the same features as the Power T1 series of subwoofers, which you are sure to know well. These subwoofers are called "slim" because their installed depth is not great at all and the bass response level is close to traditional sized models. How is it possible? Let's just say the engineering wizards at Rockford Fosgate have created the perfect high frequency voice coil assembly. Don't know what that means? Does not matter! Don't worry about deadlines, it's the fantastic sound that counts!
Key features of the Rockford Fosgate POWER T1S1-12 subwoofer
- Carbon/glass/PMI fiber diaphragm with aluminum canopy.
- Suspension system VAST™ - injected foam.
- Double Nomex center with integrated steel wires.
- Aluminum basket with integrated cooling fins.
- Custom insulated spring clamp for cable up to 10 AWG.
- 2.5" voice coil with double winding and internal / external winding.
- Encapsulated oscillating coil in contrast to previously used coupling technology (patent pending).
- Removable decorative aluminum ring.
- High temperature motor structure with a high proportion of neodymium.
- Proprietary magnetic armature technology through the motor (patent pending).
- Integrated copper ring for short circuit protection.
- Optional mounting of the cover grid.
| Catalog number | T1S1-12 |
| Brand | Rockford Fosgate |
| Links | Official web presentation |
| RMS powerThe RMS power of the subwoofer is the constant power of continuous use of the subwoofer. If the power is exceeded for a longer period of time, irreversible damage may occur, or to burn out the voice coil of the subwoofer. | 600 W |
| Max. (maximum performancePeak performance , which the subwoofer can play momentarily (approx. 0.5 s), for example when hitting drums in a song. If the maximum power is exceeded, damage can quickly occur, or to burn out the voice coil of the subwoofer. | 1200 W |
| Sensitivity (SPL 1W/1m)Subwoofer sensitivity or efficiency. The sensitivity of the subwoofer is given in decibels (dB) and, in simple terms, means that the higher the value, the lower the demands on the power of the amplifier. This is a de facto rating of how a subwoofer converts watts to sound. Sensitivity ratings are in noise level measured at 1 meter from the subwoofer using 1 W (watt of power) or using 2.83 volts at the source at 1 meter. A higher decibel level means the subwoofer is louder with less power. For every 3 dB increase in sensitivity, the subwoofer requires half the power to reproduce the same volume. For example, if an 88 dB subwoofer needs 300 watts to produce a certain volume, then a 91 dB subwoofer needs only 150 watts to reach the same efficiency. | 85 dB |
| ImpedanceImpedance - measurement of electrical resistance. When buying a subwoofer, it is very important that everyone make sure that the impedance matches the amplifier that you are connecting to it. For subwoofers with a double voice coil, we recommend following the information in the advice center! Example: A 2 Ohm subwoofer cannot be connected to an amplifier that is only stable up to 4 Ohms. A 4 Ohm subwoofer can easily be used on an amplifier that is stable up to 2 Ohms. Connecting a 4 Ohm subwoofer to an amplifier that is stable up to 4 Ohms also without problems. The most common subwoofer impedance is 4 Ohm. | 1 Ω |
| Subwoofer diameterThe diameter of the subwoofer is indicated on the screw holes. The overall outer diameter of the subwoofer is usually 1-2 cm wider, depending on the size category of the subwoofer. For a 30 cm subwoofer, the outer diameter incl. protective rubber 31.8 cm and in the 25 cm subwoofer it is 26.5 cm incl. protective rubbers. | 300mm (12") |
| Subwoofer mounting depthThe mounting depth of the subwoofer is measured from the bottom edge of the magnet to the bottom edge of the subwoofer's metal or cast basket. | 76.50 mm |
| Fs - resonant frequencyFs - is the lower resonant frequency. This parameter is the de facto free air resonant frequency of the subwoofer. Simply put, it is the point at which the weight of the subwoofer's moving parts equals the force of the subwoofer's suspension while it is in motion. If you've ever seen a piece of string start to hum uncontrollably in the wind, you've seen the effect of reaching a resonant frequency. The weight of the moving parts and the stiffness of the suspension (surround and spider) are key elements that affect the resonant frequency. As a general rule, a lower Fs indicates a subwoofer that would be better at reproducing low frequencies than a subwoofer with a higher Fs. However, this is not always the case, as other important parameters of the subwoofer also enter the resulting sound. | 37 Hz |
| Vas - equivalent volume of airVas - represents the volume of air that, when compressed per cubic meter, acts with the same force as compliance (CMS), suspension in a certain subwoofer. Vas is one of the most complicated parameters to measure, as changes in air pressure are affected by conditions of relative humidity and temperature. Another way to describe what VAS is: try using a subwoofer and find a baffle that is the right size to return the air with the same stiffness to the same resonance. The size of this box is equal to you. There are, of course, other parameters, but they are not so necessary for the exact calculation of the enclosure. Resonance frequency and Q-parameter values are also important when building enclosures. | 32.40 l |
| Xmax + -Xmax - the maximum deflection of the subwoofer diaphragm in one direction – it is not a sum, or an abbreviation for the maximum linear deflection. The subwoofer output becomes non-linear as the voice coil begins to leave the magnetic gap. | 15 mm |
| QtsTotal Q-factor of driver is a total quality factor, it includes both parameters Qes and Qms (electrical Qes and mechanical Qms). It varies in values from approx. 0.08 to 0.6, exceptionally up to 3. The Qts of the subwoofer is calculated in the same way as, for example, a pair of parallel resistors, so the result is decisively influenced by a smaller value that cannot be exceeded, which is usually Qes. | 0.89 |
| Subwoofer voice coil diameterThe larger the diameter of the voice coil, the more load capacity the subwoofer has, in layman's terms. | 75 mm |
| Subwoofer diaphragm materialThe specific material from which the subwoofer membrane is made. | Made of carbon/glass/PMI fiber with an aluminum canopy |
| MassSubwoofer weight in kilograms. The weight is usually given net, i.e. without packaging. | 7.30 kg |
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