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Mr_Spock

Member Since 25 May 2013
Offline Last Active Aug 18 2015 08:35 PM
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#507545 Speaker Recommendation

Posted by Mr_Spock on 30 July 2015 - 08:08 PM

Dont want to hijack what is an excellent thread but while on the subject of speaker upgrades is there any reason why same coax speakers used in the front cant be used in the back?Just starting to look into upgrading them and got a few questions.

 

Also can anyone name any speakers they are very impressed with and ones that are not a good investment (Such as the Kenwoods in this thread).

 

Nice seeing Lenny helping folk still,absolute legend who helped me alot when i first joined!

 

Just read this thred and have a few comments. There are two different ways to drive speakers in the car - with or without an external amp. As mentioned earlier - you only have up to max 25W per channel (2 channel driven) in the cd-player - at best.

 

If you choose not to use en external amp, you have to look for a speaker set that are built for this. You can  check for parameters like impedance and sensitivity - where low impedance and high sensitivity will give an easily driven speaker. But luckily this type of speakers are often marked as "High Efficiency Systems" og "High Sensitivity" - so they are not hard to find. Focals and Gladen are brands that are known for having types of easily driven speakers - others have too.

 

I am about to replace the original speakers in my daughters first car, a Peugeot 206 (whats wrong with Ford??). I am gonna put in Gladen M-165 (6,5" with tweeters and crossovers) these are specially built for use without an external amp. Going to use my old Pioneer DEH-4200SD cd-player to feed them. They come highly recommended by a couple of "car-stereo-guys" i have chatted with.

 

I will hopefully have the job done in a couple of weeks - can leave an impression then.




#492465 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 04 June 2015 - 09:52 AM

 

Honestly, I couldn't be happier with the Focal 165KR. Since I upgraded the amplifier to the Rockford Fosgate, these speakers just sing! I really like the Focal sound to the point that I was thinking of getting home speakers from Focal, until I realised how much they cost and then had to reconsider. Maybe in the future when I have some disposable income :P

 

That is great!

 

Focal are on top of my list if I upgrade the fronts in the future. 




#492242 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 03 June 2015 - 12:04 PM

Interested in more detail on this part where you run a dedicated positive feed from the battery to the head unit,
When doing this; do you also run a dedicated earth feed from head unit to the battery,

Have you fitted a relay to this feed for ignition on
Or
is it a permanent live to headunit?

Is there much difference to be gained if the head units internal amp is not being used?

Very interested in response mate,
Thanks very much.

 

Missed these questions about ignition on and live + to the head unit.

 

I used the 12V Ignition (switched) that controlled the old head unit - to the new. And the new 6mm2 cable is a constant 12V +. I made a new 12 negative connection to the head unit - using a more solid cable and connected it to a good connection point behind the head unit in the dash somewhere.

 

I don't think there much difference in SQ by turning the internal amps off - but it's a nice nerd feature :)  I think the Pioneer DEH-PRS80's better quality dac and electronic components overall - are more significant in SQ. And further it's wide tuning abilities. The only thing missing - is that the equalizer should be parametric.




#492238 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 03 June 2015 - 11:29 AM

Thanks Lenny :)

 

I installed a dashcam - used a 12V relay - switching by the ignition/stereo + , controlling the 12V socket in front of the gear stick:

 

IMG_8942web_zpsdec50423.jpg

 

Camera behind the rear-view mirror:

 

IMG_8952_zps6d0adc8a.jpg




#492116 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 02 June 2015 - 09:34 PM

I installed an usb interface some time ago:

 

IMG_8939web_zps1fcfeb78.jpg

 

 

IMG_8946web_zps600637fd.jpg

 

Perfect fit, got it from Ebay. The cd-player have 2 usb connections on the back side - used on of these.

 

Just had the timing belt and the front shock absorbers  replaced - the Focus have around 90k km (55k miles?) on the meter. 




#491323 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 31 May 2015 - 05:25 PM

My pleasure Mr Spock. I've spent quite some time reading Hassan thread. I've been out of the car hifi scene for over 20 years and things have come a long way since. Head units with multi layer sound processors and microphones to listen to the car and then self adjust! Wow. To much for me personally.im 53 and my ears are not audiophile quality anymore. Standard systems nowadays are very good but can be improved to many levels. I intend to add a sub (one I have already, 6th order bandpass ported box) then replace front speakers with Infinity driven by my punch 150 Rockford. Rears driven by the cars amp (think I'd have to use a dual amp balancer). Keep up your good work.

 

Good to read that I am not the only oldtimer who likes good sound quality in the car - I'm 52 :)  

 

You are so right about todays stereo components - compared to those back in the old days. Your plans sound great.




#491240 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 31 May 2015 - 11:47 AM

Thank you for positive responses.

 

There are a lot of solutions I used, just because I had the cable and it was easy to do. I am a big fan of overdoing things :)

 

The stereo install still works perfectly.

 

Lately I have been using som time to manually adjusting sound parameters to get an more even frequency respons - mostly in the lower frequencys. It makes a huge improvement.

 

I used the UMIK-1 usb microphone from MiniDSP:

 

http://www.minidsp.c...surement/umik-1

 

and using the REW free software:

 

http://www.roomeqwizard.com/

 

With these on a laptop you have very good and easy to use tool. 




#401633 Hassen's Ford Focus 1.6 Tdci Build Thread

Posted by Mr_Spock on 25 August 2014 - 09:00 PM

Ok - i agree with most of that - for most people class D fine and has efficiency advantages when running in a car enviroment, but look at the spec/ quality of the focals - i think that car owners wantling to turn their cars into a high fidelity/ quality enviroment would benifit from the (even slight) quality edge that a class AB amp has over a classD - in my experience a classD amp can get a bit harsh/ gritty at the top end when driven hard at high volume levels, and many musicians, sound engineers, hi-fi enthusiasts etc would hear the difference, i realize manufacturers' are continuing to develop classD designs to bridge the gap to class AB - but for me, class AB has the edge in quality

 

The difference may be small, and the difference between different speakers (sound quality wise) is probably bigger but with class AB amps available for less than a classD, its a no-brainer (for front speakers at these power levels) for subs or very high power (eg competition) systems,(power/ efficiency over quality) classD may be the way to go

 

- people debate class D vs class AB -  

 

http://www.diyaudio....-amplifier.html       

 

You have good arguments - I do not disagree. 

 

Thinking only money and SQ - Class AB would be preferable.

 

But in a car with stock electrical system - Class AB delivering 40% of its power consumption in to the heatsink. Voltage drop could compromise sound quality. For me this is a bigger concern - than the difference in SQ between Class AB and Class D. I can not hear the difference - not at home - and probably not in the car. 

 

But maybe, as you wrote - using Class D for sub and Class AB for the front set - is the best choice - a good comprimise of cost, voltage drop and SQ? 




#401576 Hassen's Ford Focus 1.6 Tdci Build Thread

Posted by Mr_Spock on 25 August 2014 - 06:22 PM

The infinity amp is overpriced at £350, and the total harmonic distortion at the rated output is 1% thats (bad) brobably due to the cass D output stage - translation = its crap

 

The much cheaper BOSS amps are 0.01% total harmonic distortion at the rated output (exellent quality) - i looked at scores of amps to find an affordable one (or range of amps) with i very high spec (including superior class AB output stages ) at an affordable pric- this amp/ range of amps blows many much more expensive amps away (in terms of quality)   

 

Im not looking at brand names but at technical specs

 

You could get 2 boss amps, and this active boss x-over -

 

http://www.ebay.co.u...sd=321433206636

 

 http://www.ebay.co.u...=item4ad6e97f6c

 

for less than 1 overpriced (and inferior) amp   - and that would mean you have more left over for another set of focals -

 

so you could have the seperate active x-over (with fine control of the system) + 2 four chanel amps so the front and rears would be active, 8x (an amp for each woofer + tweeter!) 150w = 1200w so awesome power, headroom and clarity - and a fraction of the price of an equivelant system

 

PS - yes your sub x-over frequency is low, try 100 to 200hz, see how it sounds, you may need to turn the bass down   

 

I beleive THD less than 1% on the Kappa 4 - means 0,05% :

 

http://eu.infinitysy...kappa-four.html

 

As for the Class AB vs Class D, at home in a very good listening environment - maybe you are right. Class A - for sure. Still - I own a Pioneer home cinema receiver, with class D - and I beleive it collected top results in every review I have read. And I like it too :)

 

In a car - with lot of roadnoise etc - and perhaps playing mp3's - spotify - I do not believe it would be an hearable improvement using class AB over class D. 




#400587 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 22 August 2014 - 12:59 PM

No issues, cheap (£270 in Norway), delivers great power without getting hot, small and easy to install, looks great. Sounds great with my Infinity Kappa component speakers.

 

I mainly choose the Kappa amplifiers, because I use Kappa speakers in the car (and the specs) - and I have been very pleased with the choise. But I would surely been happy with another brand too.

 

good luck on your amplifier hunt :)




#400584 Hassen's Ford Focus 1.6 Tdci Build Thread

Posted by Mr_Spock on 22 August 2014 - 12:46 PM

Hi , Hassen, your setup looks great. Great Work I agree with FOCA's advices. But I think class D are totally ok in the listening envirement of a car. Think voltage drop are a bigger concern - class D delivers more power, using less current.

 

Choosing SQ - active crossovers with time-alignment sure will improve.

 

The prefab sub looks great. Love the pictures - fun to watch your progress.




#280882 Another Focus

Posted by Mr_Spock on 08 August 2013 - 04:52 PM

Awesome looking Focus - sure like the colour  :lol:




#278880 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 31 July 2013 - 12:38 PM

Thank you :)




#266674 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 10 June 2013 - 06:50 AM

Thorough cleaning before attaching the damping sheets. First vacuum, next wash with soap and water - and wipe off with Methylated Spirits (or similar product). I believe summer temperatures would benefit both attachment and making the sheets more flexible to work with. Check for tips were you buy the damping sheets.

 

To get a more complete sound dampening, I believe they recommend that you lay multiple layers of different types of damping mats. As different types og mats dampens different types of sound.

 

I like your plan, take your time :)




#265742 Guide To Complete Stereo Installation Focus Mk2

Posted by Mr_Spock on 06 June 2013 - 07:26 PM

And of course - i did install a Car Alarm:

 

IMG_8610web.jpg

 

With a nice blue flashing LED:

 

IMG_8677web-1.jpg

 

It connects with the cars can-bus circuit - so it turns on and off with the central locking - using the key fob.