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-   -   Mighty Midget Amplifier and speaker requirements. (http://www.diyaudio.com/forums/tubes-valves/222371-mighty-midget-amplifier-speaker-requirements.html)

Fivetide 28th October 2012 01:21 AM

Mighty Midget Amplifier and speaker requirements.
 
I’m really very new to DIY audio, and have been building up project by project; I have built a CMOY and an O2 headphone amp. I decided for my next project to build a simple valve amp, and reading Pmillitt’s article on the mighty midget thought that would be a great noobie amp to make. So I have now almost everything except the Edcor transformers, which I have ordered and hopefully will receive soon
The thing is I have realised it has an output of “With a B+ voltage of about 300V, the amp puts out about 3.5W per channel, while dissipating under 10W on the plates of the output tubes. THD at 1W into 8 ohms is about 0.7%. “ Now I have a pair of bookshelf kef q1’s “Amplifier Requirements: 15-120W” I know this is a silly question but will I need to buy some more speakers that only need 3.5W PC to drive them ?

jerluwoo 28th October 2012 03:04 AM

Your Q1's are a little low in sensitivity at 91db but should be fine if you dont need it loud.

Fivetide 28th October 2012 10:43 AM

Quote:

Originally Posted by jerluwoo (Post 3217966)
Your Q1's are a little low in sensitivity at 91db but should be fine if you dont need it loud.

Thanks for that, I dont play loud music :)


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