Sonosax SX-R4+
has been designed with the weight (850 g 1.9 lbs), size (200 x 50 x 144.5 mm 7.87 x 1.96 x 5.7 ‘’), and power (6W if all inputs are enabled) in mind for docu work.
It's so good that it became even a good choice for classical music recordings! I love what engeneering has been put in this little machine.
With the Wysicom 4 channel reciever and the upcoming RX+ module it will be really efficient, but I don't know if the module will be ready for summer...