Replacing these tweeters with a higher-quality driver allows for a more enjoyable listening experience at all volumes. The larger(28mm) soft-dome diaphragm of the Morel Elate Carbon tweeter has a much more linear response curve, yielding a more natural sound. We are also installing a less efficient driver, so it’s actually a bit less output at the same volume. This reveals more of the bass and midrange for a balanced listening experience. That said, this isn’t going to net us an “audiophile-like” experience from the Bose system. We’re still using factory power and all of the other original speakers. If your main complaint on the Bose is the overly-bright top end, this is the perfect solution.

Current Compatibility:

• • 2012.5 – 2019 911 (991.1/991.2)
  • 2020+ 911 (992.1/992.2)
  • 2012-2025 Cayman & Boxster (981/718)
  • 2017+ Macan (ICE)
  • 2010+ Cayenne

On top of that, we use a material called SoundShield that not only adds mass, but also has a closed-cell foam to isolate the panels from each-other. This means less rattles and audible vibrations in the doors. All of our damping materials are pre-cut for the doors, so all you have to do is clean the surfaces with alcohol and peel/stick the media in its respective location!

Current Compatibility:

• • 2012.5 – 2019 911 (991.1/991.2)
  • 2020+ 911 (992.1/992.2)
  • 2012-2025 Cayman & Boxster (981/718)
  • 2017+ Macan (ICE)
  • 2010+ Cayenne

The single biggest improvement we can make in this system comes from power and processing. The original amplifier is underpowered and over-processed. The DSP(digital signal processor) inside that amp just isn’t powerful enough to equalize each speaker independently with the precision needed to correct their response in the car. On top of that, they try to create an equal experience for both driver and passenger, which means there’s no true optimization available for the driver. By replacing the original amplifier with our well-tuned DSP amplifier, we’re effectively doubling the power and improving the processing power ten fold.

More power means better dynamics — Dynamics are responsible for our ears perception of amplitude. If we look at the strike of a snare drum in a response chart, it starts with a loud, impactful strike and then trails off on the tail end. The same is true for every percussive note and most instruments in general. Vocals often also fluctuate in amplitude depending on the inflection and tenor. Without proper power, the initial impact of the notes isn’t much greater than the resonance they leave behind. That’s why the OEM system fails to invoke an emotional reaction, even to well-recorded music. With 75 watts to each midrange/tweeter and 180 watts to each door woofer, this upgraded amp has plenty of room in the tank to resolve those notes with the tenacity the recording intended for you to experience.

That said, power without control is a recipe for questionable results. Having a powerful DSP chipset within the amp allows us to equalize each speakers response to compensate for their shortcomings and that of the car’s acoustics. Using a special microphone, we measure the response of each speaker at the listening position. With those measurements we can adjust the equalizer of every speaker in the car to get the most accurate response the system is capable of. We can also delay each speakers arrive by milliseconds, which aligns their phase perfectly at your headrest. That yields a true stereo presentation on the dash and a sense of imaging — the audible/visual mind-trick of placing the vocals and instruments on the stage in front of us.

The midrange speaker is arguably the most important in the whole system. Our ears are most sensitive to this range of frequencies when it comes to the discernible sound quality in a system. In the Stage Three configuration, we upgrade that to a carbon-kevlar version from Morel of Israel’s Elate series. That speaker maintains a much more linear response than the factory versions, so we get a more detailed and natural sound without having to apply as much processing. The result is a warmer and more full-bodied sound. Building on these principles, we also upgrade the 8″ door woofers to 9″ carbon-kevlars from Morel. These have been custom-designed to take full-advantage of the available power from the amplifier, and the results are a more textured and detailed bass response. We can truly hear the lighter plucks of the bass guitar and the subtleties in the lower vocal range.

Just like everything else up to this point, these are designed to utilize factory hardware and locations as well as direct-fit wiring harnesses. True plug and play.

Current Compatibility:

• • 2012.5 – 2019 911 (991.1/991.2) w/ Sound Package Plus or BOSE
  • 2020+ 911 (992.1/992.2) w/ any OEM system
  • 2012-2025 Cayman & Boxster (981/718) w/ Sound Package Plus or BOSE
  • 2017+ Macan (ICE) w/ BOSE

Adding a subwoofer means having something new in the interior that didn’t exist prior. Knowing that, we put a heavy focus on the design of the subwoofer to make it look and feel like an extension of the original Porsche design language. Our enclosure for the 992 mounts on the rear package tray behind the back seats(or behind where they would be if you have a factory delete). We include steel brackets that secure to the factory hardware in the back so there are no holes drilled and we get a very secure connection to the car. 

The enclosure itself is built from lightweight and extremely durable baltic birch and finished in an Alcantara suede/carpet combo. The entire process takes about 30 hours for each enclosure — there’s a lot of dedication to the details. The subwoofer we use is a 10″ Shallow mount from Hertz of Italy’s Mille Pro series. Great low-distortion output and a very wide frequency response, particularly in the lower register where the door woofers start to trail off. We mate that to a 600w Mono amplifier from Audiotec-Fischer of Germany. It’s secured to a mount that we’ve designed to tuck into the passenger quarter panel, completely hidden next to the subwoofer in the back. 

Having a way to control the output level from the subwoofer is important. Some recordings need a little more and others need a little less. Having that control at your fingertips can be extremely useful. We ship the system with a universal mountable control knob that can go in a number of places, but the most common is the right side of the steering column. If you’re looking for something that makes a bit more of a statement, we can fabricate a custom controller for the center console that mounts just behind the shifter. 

Current Compatibility:

• • 2012.5 – 2019 911 (991.1/991.2)
  • 2020+ 911 (992.1/992.2)