My HiFi Boom Box

Yes mate the volume is lower although being able to adjust the bass/mid/treble off a passive device is pretty cool in all fairness, also it gets around the issue of needing to power down or mute the tunes whilst an alternative signal source is connected, so in that regard it is a bit swings and round-abouts.  Does not bother me too much about the lower volume output from the Pokket Mixer, to my ear the quality is still there, just the amp needs to work harder.  That actually is what I am after in all fairness as the tube amplifier is pretty damn efficient and sends out quite a hot signal any ways so a little attenuation of the source signal will not hurt.  Also as it is passive despite the mentioned volume drop, no extra signal noise seems to be introduced which in my eyes is pretty important at this stage of the gain structure. Will keep you guys updated as to how things are progressing.

Edited by Baron Greenback - 29 June 2013 at 7:37pm

So I have finished my course, and I can now build my boombox, here is the design concept, I have cut the timber (birch-ply) and will do the routing on Monday, but here is what I am going to build... oh and just to clarify I am going to use 2 x pre-amps, they will be switchable, one will be digital for longer battery life and the other will be a tube pre-amp which sounds superb but due to heat production I am guessing will 'eat' amp hours.

Edited by Baron Greenback - 26 July 2013 at 1:41pm

Not being funny my man brummiejon but a few points need to be looked at a little closer here... what do you want from tone controls? Mine seem to attenuate the bass, mid and treble freq. just fine, are expecting a passive unit to boost these frequencies at any point? also, what is the big dig at build quality, the PCB is solid, good quality, the pots are decent, fader seems pretty reasonable for the price, and all of the soldering is belt and braces (not skimped on).  What build improvements would you like to see, I hate it when people provide non-constructive criticism... the only thing I would like to see improved would be the usual... jack sockets, but hey man, you are spending in your case £40... I suppose you are disappointed with how hot it has been this year too eh...  

Hi