Dear gents,

 

After months of researching today I decided to open an account here and share with you my findings.

Having 2 Octys with Canton, One 5E3 and one NX3 VRS and both sounding as crap I decided to add an AM subwoofer.

 

For all the members and other parties interested in this, the adapter HELIX AAC.3 HP is able to bypass the Canton protection and provide both a signal and a Remote signal. So, to add an aftermarket subwoofer to any Canton system on Skodas, use the adapter but choose the HP one. It is literally plug and play with no issues.

 

Now, after adding the JBL BassPro Hub and the adapter the bass was not so punchy and on high level peaking and sounding like crap regardrless of the focus Front, Driver etc it just didn't sound right.

This evening I decided to switch the polarity used to input the Hi-Low adapter as described here using the aftermarket plugs or pin switch.

 

I can state, not say, that Yes, the polarity in ALL of the Skoda Canton system is reversed at the subwoofer output and regardless of keeping the original 8X8Ohm sub or placing an after-market adapter and sub, reverse the pins, just put + to where - should be and you will be amazed.

The bass is now clear, punchy, deep and no clipping in the AM Subwoofer.

 

Given that is very hard to find and test this kind of info about polarity and Hi-Low adapters that can trick the Can protection I really hope that for future searchers this info will be usefull.

 

Best Regards,

Bogdan

 

Hi Bogdan,

 

the reversed polarity is not nesessarily a common problem with Canton, it is even more a tool to adjust the phase. So when you replace the OEM sub with a custom one which hast different characteristica, is probably a closed box and on the different position, you may have better addition if you flip the polarity. You should always make measurements to analyze the frequency response.

I personally know the Superb 3 non iV with Canton and there ist no issue, also in new Octavia nx there is no cancellation, but the sub punches at 60hz and does not play below 35hz.

@spacelord I added the Helix in my NX3 Vrs and the sub clipped and sounded crappy. After 2,1,3,4 we are and business and a total swift in bass and sound quality.

 

Also I inverted my wife's 5E3 sub and also the game changed. So, from my opinion, all Octavia Cantons are screwed from factory.

when it clipped, then you overloaded the input

 

do you have measurements you can post? before and after 

 

 

Indeed, if I moved the gain 7% with the OEM pinout, and above 15% on the bass eq the sub was cutting/clipping also with no <60Hz output.

 

Sadly I haven't saved any measurements. If I'll get the chance I will try to redo but given that I wraped everyting in textile tape I might be to lazy to disassemble

 

Where is this connector?

 

I fancy having a look at mine and seeing if I can swap the cables round without ripping the car to  its!

On the sub 

So is that all the side of the boot having to come off to access it?

Drop the back seat and lift the carpet next to the seat to reveal the worlds smallest and crapest sub

Hello, I thought Superb iV doesn't have Canton .  I bought a 2020 Superb iV (I should have the car delivered in 3 days) and wanted to add some aftermarket front  speakers and an aftermarket sub. What do you guys recomend?

It depends on the model year. the 2020 Superb iV does have Canton as option or part of the trim line.

 

If you don't have it - your choices are wide. I'd recommend to take a DSP amplifier and a sub first.

 

If you have canton, you are pretty much screwed. There are ways, but it will be expensive.

On   the door trim there is no midspeaker/Canton logo. Before , I had a  280ps Sportline with Canton and I would love get at least part of that sound experience in my iV.

Do you have the amplifier under the seat? drivers or passengers

 

If yes, then it is a sound system, canton without a subwoofer. you could add an amp with AM sub, but you need to find the appropriate connector if you don't want to cut wires.

If there is no amplifier, you could go for options available for octavia NX. Like Helix Match or similar. Unfortunately the spare tire sub is not an option, you'll have to make your own enclosure fitting the space under the boot cover.

 

for example

 

Thank you @spacelord this made a huge difference in the sound experience. 💪

have to say: on my Kodiaq I took the radio out to deal with the transition to hi level out for a DSP.

Turns out if I have the doors open, the bass is way better --> something somewhere is out of phase. I still don't like the tonality but the bass is far, far better. Not 100% sure which wiring it is / was, may try testing it but more likely not.

 

On the Superb, there was enough space behind the display for the DSP and we tucked a 4.100 behind the dash. The Kodiaq has no such space, I think I am going to need to grab an ISO direct from the radio, even the 52-pin T adapter doesn't really fit. That's the other way to get high level signals, especially if you don't have Canton. And if you do, i think you can handle it with 5 minutes of coding in 5F.

Depending on the DSP you get it can make it easy as you can play around and change the phase in the software and get a better response for the speaker position and the cabin of the car.

A lot cars with subs sound better if you open the back window a little furthest away from the listener / driver.

 

https://www.caraudiohelp.com/newsletter/cabin_gain.html

18 hours ago, brettikivi said:

the other way to get high level signals, especially if you don't have Canton. And if you do, i think you can handle it with 5 minutes of coding in 5F.

If you have an mib3 there's no way to code it to standard. You have to sum the 7 channel high level (3way front plus sub) which is not exactly a high end solution.

11 hours ago, spacelord said:

If you have an mib3 there's no way to code it to standard. You have to sum the 7 channel high level (3way front plus sub) which is not exactly a high end solution.

that's not good 😞

 

12 hours ago, Cocain said:

Depending on the DSP you get it can make it easy as you can play around and change the phase in the software and get a better response for the speaker position and the cabin of the car.

A lot cars with subs sound better if you open the back window a little furthest away from the listener / driver.

 

https://www.caraudiohelp.com/newsletter/cabin_gain.html

I already have C-DSP with 8 output channels ready to go (was waiting for the car to be fixed from the AAC problems... ). Set up some basic XO the other day and some simple routing to prove it works. I was just very surprised to hear the difference and can now understand why some people are really impressed with the Canton. It sounds okay like that, a reasonable amount of bass that drops to an OK level, but imaging is awful and tonality... no, thanks.

 

I intend to use cabin gain fully with a sealed box of around 30l, 20kg and a 10" sub running off around 1kW   Going to clip it in with some hardware to make sure it doesn't move too much. Highpass is set to 10Hz @ 24dB/Oct so I don't shake things too much.

 

Someone commented once you can "model" Cabin Gain using a Linkwitz transform with a q of 0.707 from the cabin frequency down (so the half wave length that will fit) down to 20Hz. I feel that's pretty close but I don't trust my mic that low. Too small of a membrane.

343/length in metres x2 should give you the frequency where it starts. For the A2 that calculated to around 57Hz, and I figure with the Kodiaq it's going to be closer to 45Hz.

Adding in a little "hump" at 60-70Hz is another trick to use to make it feel like there's way more bass than there actually is. I will be aiming for "close to flat"

 

 

A hump at 60-70 Hz produces a very boomy bass. I'd try to get the frequency response flat down to 200hz and start steadily rising with peak at 20-25hz

Like this below. My current setup winning last Hifi competition 

@spacelord are the dongles still available? How much to Aus?

Hey, yes, they are . 

 

Australia? OMG. Have to look.  It's 12 euro shipping so overall i'd take 30 Euros

He spacelord,

Im new here at the forum. and bought a superb iv 2022. The canton speakers in the car did not sound good. Just a little good. I asked the sales man if the subwoofer was broken but after some testing i hear the speaker, but it was not loud when i was driving. I think that youre solution will help me ass well.. can i contact you? Thanks a lot and very good work.!

On 06/04/2023 at 19:19, Internetdivisor said:

Dear gents,

 

After months of researching today I decided to open an account here and share with you my findings.

Having 2 Octys with Canton, One 5E3 and one NX3 VRS and both sounding as crap I decided to add an AM subwoofer.

 

For all the members and other parties interested in this, the adapter HELIX AAC.3 HP is able to bypass the Canton protection and provide both a signal and a Remote signal. So, to add an aftermarket subwoofer to any Canton system on Skodas, use the adapter but choose the HP one. It is literally plug and play with no issues.

 

Now, after adding the JBL BassPro Hub and the adapter the bass was not so punchy and on high level peaking and sounding like crap regardrless of the focus Front, Driver etc it just didn't sound right.

This evening I decided to switch the polarity used to input the Hi-Low adapter as described here using the aftermarket plugs or pin switch.

 

I can state, not say, that Yes, the polarity in ALL of the Skoda Canton system is reversed at the subwoofer output and regardless of keeping the original 8X8Ohm sub or placing an after-market adapter and sub, reverse the pins, just put + to where - should be and you will be amazed.

The bass is now clear, punchy, deep and no clipping in the AM Subwoofer.

 

Given that is very hard to find and test this kind of info about polarity and Hi-Low adapters that can trick the Can protection I really hope that for future searchers this info will be usefull.

 

Best Regards,

Bogdan

 

Hi

looking to do this. Canont sub tinsel cable keeps breaking (3rd time)

1)did you power am with direct car battery connection kit?

2) How did you connect the remote cable to the Canton system/amp?

3) Where did you connect the speaker cables and how?

Hey @spacelord

I’ve created a new account and can’t DM you. Are you still making these connectors? If so I would like to buy one.

Thanks for the article

I just bought a 2022 Superb iV (hybrid) and as many here I am hugely disappointed with the Canton sound system. I would send you a PM about the adapter cable @spacelord , but since I am new here on the forum I first have to earn 20 points to do so. Where is the subwoofer?