amp 15 monoblock

[dvenardos]

Can you run the outputs on the amp15 in parallel to get a 4 ohm stable monoblock? Similar to the amp 11 but higher power and easier to build?

[V-bro]

I wouldn't know about that "easier to build"...

OK, there are mainly through hole components, but it is still a relatively complex amplifier.

You can parallel it, after you've separately nulled the outputs and make sure the connections are 100% tight between both channels. When there's even the slightest glitch in the parallel connections you can get serious problems. I would advise to solder them together or at least use ferrule terminated wires that are tightly bolted down in the speaker connection terminals.

------X-max. can be several meters on any driver, too bad it can be done only once...------

[krilli]

... and the Amp11 is easier than you think to build, IMO. It was my first serious SMT job, and with the right technique it stops being hard and becomes very manageable. Also, it's easier to build a power supply for the Amp11 because it's single rail, so you can use any number of SMPS jobbies or a cheaper transformer.

I say this in the interest of full disclosure ...

However, I really want an Amp15! Decisions, decisions. What are the most important parameters? If you *need* higher power, the Amp15 is a much stronger candidate. Pending other factors, the Amp11 starts to look better.

-- edit - this post is rather parallel to V-Bro's latest post here: http://41hz.com/Forums/topic.asp?TOP...40&whichpage=2

[V-bro]

Thanks for backing up Krilli

It's the flipping over of the board that I dislike most on through hole kits, with SMD you can just place the PCB on you desk and start sticking the components on

------X-max. can be several meters on any driver, too bad it can be done only once...------

[krilli]

well put

[dweekie]

quote:Originally posted by V-bro

Thanks for backing up Krilli

It's the flipping over of the board that I dislike most on through hole kits, with SMD you can just place the PCB on you desk and start sticking the components on

------X-max. can be several meters on any driver, too bad it can be done only once...------

Flipping is definitely the annoying part of throughhole. What's more annoying is dropping a smd resistor

[V-bro]

quote:Originally posted by dweekie

quote:Originally posted by V-bro

Thanks for backing up Krilli

It's the flipping over of the board that I dislike most on through hole kits, with SMD you can just place the PCB on you desk and start sticking the components on

------X-max. can be several meters on any driver, too bad it can be done only once...------

Flipping is definitely the annoying part of throughhole. What's more annoying is dropping a smd resistor

Yes, that's more or less what I meant to say in the other thread where Krilli linked to... The being on my knees looking for a breadcrumb sized component..

But that's easily prevented when you take enough care opening the packages...

------X-max. can be several meters on any driver, too bad it can be done only once...------