Amp and DSP for Gladen speakers

Nils92

Member
Hi
Following the advice I found on this forum, I changed my T6.1 oem front door speakers for a pair of Gladen One, and also did a throrough 3 tier sound deadening of the doors. I have no sub nor back speakers.
The result is much better, my ears don't hurt anymore ;)
But still, I find the highs to be a little bit harsh. One other member of this forum, it seems, gave a similar feed-back.
Since I kept the oem MIB2GP radio amp, I wonder if this could one of the reasons to this feeling, because this amp would have high distortion perhaps ? But I listen at relatively low levels.
I had not planned to change the amp, but since this is annoying me a bit I am considering putting a 4ch amp + dsp, hoping that might bring out the full potential of the Gladens.
After some research, I found those Puzu amps : Puzu PZ-C7 or PZ-C31S with integrated DSP to seem quite serious, qualitative, and very competitively priced. Before I give it a try I wanted to post here a set of question :
- Do you think my relative unsatisfaction with the Gladen could be caused by the oem amp, and that the installation of a decent amp could be the good move ? (another solution I read on this forum suggested a 3db loss from the tweeter by a crossover cable cutting. But I did not find that very satisfactory, as I fear that the loss of the harshness would also mean the loss of my highs. But still I could also consider trying that)
- Anybody tried the Puzu amps ?
- Can those amps be placed somewhere behind the T6.1 dashboard (the biggest one, C31S, measuring 177mmX138mmX46mm) ?
- If I go the amp+dsp route, I would be curious to try to replace the Gladens passive crossover by an active crossover, by allocating one channel to every loudspeaker (so 2 channels for the 2 woofers with low pass filter, and 2 channels for the 2 tweeters with high pass filters). I would of course unsolder the passive filter provided with the tweeters. Anybody tried this ? What would be the cut-off frequency you would suggest between the Gladens woofers and the tweeters ?
Many questions in one post, I recognize ;)
But thanks for your input
 
You obviously know a lot more about this stuff than me but ... T6.1 Kombi, I have front Gladens and rear Hertz, the basic 6.5" head unit, and have added a basic Vibe amp (just front gain and rear gain).

I found the Gladen tweeters a bit harsh so I cut the crossover link, it makes a small subtle difference but is an improvement for me. Easily reversible too.

I did fit the Bluetooth Vibe DSP amp as well but that ruined my DAB signal, removed my fader and was far too complicated for my little brain so I stuck the basic one back in.

Hope that helps a little.
 
You obviously know a lot more about this stuff than me but ... T6.1 Kombi, I have front Gladens and rear Hertz, the basic 6.5" head unit, and have added a basic Vibe amp (just front gain and rear gain).

I found the Gladen tweeters a bit harsh so I cut the crossover link, it makes a small subtle difference but is an improvement for me. Easily reversible too.

I did fit the Bluetooth Vibe DSP amp as well but that ruined my DAB signal, removed my fader and was far too complicated for my little brain so I stuck the basic one back in.

Hope that helps a little.
Thanks for the feedback. If the amp cancelled your DAB that's a no-go indeed.
Crossover cable cutting is an option, perhaps I'll try an amp+DSP before
By the way could you easily manage to locate your vibe amp behind the dashboard - if that is where you put it ?
 
Yes loads of space behind the dash just to the left (and lower down) for the amp.

I think the main problem with the sound quality is the high level input from the onboard amp. I could get 'better' sound with the DSP one but I was floundering a bit because there were just so many settings available and I didn't really know what I was doing with it. And of course it was still taking a high level input so you're in to a losing battle.

We have a VW Touran as well, with the big 9 inch head unit, all standard, really good sound compared to the Transporter ...
 
P.S. glad someone else is on the same journey ... I get very confused over the different VW head units, this is mine, not sure which one you have.

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