DIY powered speakers using AKSA modules

jk@home · « **on:** 13 Sep 2003, 02:05 pm »

Has anyone done this, seems like it would make sense for a great home theater application. 5 identical speakers with 100 watts in the front 3, 55 watts in the rears.

Thanks
JK

Jens · « **Reply #1 on:** 14 Sep 2003, 06:52 pm »

Hi JK,

Sorry, haven't done this (would like to, though) - but I don't see any reason why this should not become one heck of a system. Go for it

If you want to have the amps inside the speaker enclosures, it's probably wise to make sure they are isolated properly from any vibration.

Also, for the rear it is not required to have very large speakers, so you could get by with a smaller version of the front speakers (saves a bit of money).

I'm building my own rear speakers, which are a much smaller version of my stereo pair (OK - they are quite big, see http://j-a-thorsen.homepage.dk/home_gb.html)

Great idea - good luck if you go on with it!

Cheers,

Jens

Seano · « **Reply #2 on:** 17 Sep 2003, 06:12 am »

I think if I was to go to that extent - and I've been thunking about it for some time - I'd go the whole hog. That is, go with the bi-amp. Whack two AKSA modules in each speaker, one for the low frequencies and one for the high. This way you can get away with 55's rather than 100s (although if you want to go the double ton then feel free!) or you can even mix it up with a 100 for the lows and a 55 for the highs.

Tis the 2 channel system I've been considering for the future.........CD transport, DAKSA and GK-1 plus power filter and remote ON/OFF control in one floorstanding box then two bi-amped (dual mono perhaps?) floorstander speakers (Aksonics?) that look exactly the same as the source box. Can visualise it now and it looks tidy..............mmmmm

AKSA · « **Reply #3 on:** 19 Sep 2003, 12:03 am »

AKSA modules are ideal for HT applications.

Using an optional twin ledged heatsink 150mm tall - twice the height of the 75mm used on the two channel amps - you can easily mount five channels - two 55W and one 100W left side and two 100W right side.

Fred S of TX has done just this, and is very happy with the results. You there Fred??

Cheers,

Hugh

SteveA · « **Reply #4 on:** 24 Sep 2003, 04:28 pm »

Hugh-
I am also interested in the AKSA for Home Theater (I already have one 55w and one 100w in a two channel arrangement). I am also building the SL Orions and plan to power them with 8 channels of AKSA. So with that in mind and with 7.1 in mind, I could have a need for a total of 15 channels of amplification (assuming two subs to augment the Orions).

Question 1:
You mention on your site that optimum for a two channel 55w is 160 VA 25-0-25 transformers (eg, Avel Lindberg D4032 which I have used). They are out of stock so I was wondering if the D4040 which is 230 VA and 25-0-25 would be useable?

Question 2:
Once I determine how many additional channels I need, could a "kitset" be ordered to fill out this need (eg, might have an odd number of 100w channels)?

If you prefer to respond via email, I believe my e-mail address is listed with AudioCircle.

SteveA

Malcolm Fear · « **Reply #5 on:** 24 Sep 2003, 10:56 pm »

Hey Hugh
At this rate you're going to have to change your pricing structure - 1 to 9 at one price, 10% discount for 10 or more, 20% discount 20 or more). Someone will build a tri amped 7.1 (that could be apprx. 23 amp boards).

AKSA · « **Reply #6 on:** 24 Sep 2003, 11:20 pm »

Hi Steve,

Thank you for your post. You wrote:

Quote

Question 1:
You mention on your site that optimum for a two channel 55w is 160 VA 25-0-25 transformers (eg, Avel Lindberg D4032 which I have used). They are out of stock so I was wondering if the D4040 which is 230 VA and 25-0-25 would be useable?

I did try larger transformers on 55N AKSAs and found that the sound somehow lost its nimbleness, so would strongly suggest looking around for another manufacturer. AL has now gone to China for their Y23 series, and I understand the D4040 is actually made in UK (or maybe Ireland!).

Try www.plitron.com or www.toroid.com, both in your vicinity.

Quote

Question 2:
Once I determine how many additional channels I need, could a "kitset" be ordered to fill out this need (eg, might have an odd number of 100w channels)?

Absolutely. I have stock of single channel 100s and 55s which enables me to make up odd numbers in minutes.

Malcolm,

For once, my friend, I have anticipated this!

I do offer a discount, but it kicks in at 5% for 5, 10% for 10, and 20% for 20!! I'd like to offer the sorts of economies of scale that the multichannel amps in HT boast, but unfortunately I'm not using chips and robot assembly, and quantity kit assemblies still cost me the same to make up per unit!

Thanks for all the interest,

Cheers,

Hugh

tg3 · « **Reply #7 on:** 25 Sep 2003, 05:33 am »

Quote from: AKSA

Using an optional twin ledged heatsink 150mm tall - twice the height of the 75mm used on the two channel amps - you can easily mount five channels - two 55W and one 100W left side and two 100W right side.

I'm considering a 3-way active, so this heatsink would be perfect. Where, pray tell, can it be procured?

Thanks a bunch.

EchiDna · « **Reply #8 on:** 25 Sep 2003, 06:04 am »

Quote from: tg3

Quote from: AKSA
Using an optional twin ledged heatsink 150mm tall - twice the height of the 75mm used on the two channel amps - you can easily mount five channels - two 55W and one 100W left side and two 100W right side.

I'm considering a 3-way active, so this heatsink would be perfect. Where, pray tell, can it be procured?

Thanks a bunch.

you can see the exact heatsink Hugh is mentioning in my gallery (see link in signature) and AFAIK, it can only be bought through Hugh as the manufacturer is a small business who doesn't promote or sell his product online.