Hi, everybody!

I'm novice here and signup being impressed mister Kevin Gilmore designs.

First of all - thanks to him for making designs opened!

Now i'm thinking about building Dynahi at a different manner than author.

The main concept is to put overall amp in a comparatively small case such 3209:

http://m.ebay.co.uk/itm/3209-class-A-Full-Aluminum-amplifier-Enclosure-AMP-case-both-side-heatsink-/271986781371?nav=SEARCH

So, PCBs must be rerouted.

Here i want to offer another building idea, best to understand by photo and renders (for understanding dimensions - caps are 18 mm diameter and 35 mm height):

There are several benefits in such layout.

1. Input stage (further - IPS) and voltage amplification stage (further - VAS) are separated from output stage (further - OPS).

1.1 So we can easily swap IPS/VAS board based on BJT/JFET, balanced SuSy or single-ended, SMD or throughole without need to demounting OPS from heatsink.

1.2 Each of the board are comparatively small and can be done with better shielding/decoupling, and even on a 4-layer PCB if needed at a low price.

1.3 Further improvement via changing small IPS/VAS board at a reasonable price.

I suppose, that OPS board can be splitted to two boards under 100x100 mm and prototyped here at a very reasonable price:

http://www.pcbway.com/pcb_prototype/

This thread will contain all PCB gerbers/projects or custom numbers at PCB-providers.

Any opinions/suggestions?

Looks interesting, I would probably build one.

Small brother - balanced Dynalo can be routed like this: