L25D vs Hifimediy for 6 channel active system

[dublin78]

Hi

I am building a six channel minidsp based active system. My drivers are

Woofer: 8ohm 88dB
Midrange: 4ohm 90dB
Tweeter: 4ohm 94dB

I am on a light budget. So far my choices for the amplifier modules are:

3x L25D powered by a shared Connex 800W SMPS

Or Hifimediy units
T1 for Woofer with Connex SMPS300
T2 for Midrange with shared Connex SMPS500
T2 for Tweeter with shared Connex SMPS500

I would appreciate any input, or suggestions.

 

[CharlieLaub]

The L25D is for 8 ohm loads only. Try the L15D instead.

 

[dublin78]

Ok. Thanks. Can the L15D handle 8ohm loads also?

 

[CharlieLaub]

Yes.

 

[zog666]

Hi,

I my limited experience my Hifimediy T2 (albeit with linear PSU) runs a lot quieter than my L20D (with connex SMPS), I've found it better for use in my miniDSP active system (high sensitivity drivers, 98 dB woofer).

But the L20D was more than quiet enough for my passive crossover Econowaves (I think 94db - Delta 12LFA woofer?) though.

Obviously this is dependant somewhat on the wiring arrangement etc for the builds.

Hope this info helps.

 

[von Ah]

Experiment with a cheap YJ 6.0 TPA3116 board from ebay. You could possibly adjust the filter values to match your speaker impedances. Somewhere in the big TPA3116 thread would describe that.

 

[dublin78]

von Ah: Thanks for the suggestion.

I have done a bit of reading up on the TPA3116. Looks interesting. There are some very long threads.

Are there any bad boards to avoid, or are they all good?

I have found this 6 channel version on ebay: Assembled TPA3116 6-channel amplifier board (50W * 6) -SN | eBay