Focusrite ISA 428 2000s – Blue

The Focusrite ISA mic preamp is well known as being one of the definitive and best sounding totally analogue devices. Designed by Rupert Neve, this model is the mk1 and is fitted with VU meters and a peak LED to set optimum gain structure of the mic preamps. On this unit there are 4 of such. In addition the ISA 400 has 4 more preamps operating at line level so giving a total of 8 inputs. The unit is also fitted with 4 of the legendary Lundahl LL1538, and in addition to the ISA setting the mic preamps have an additional 3 impedance settings which can add gain and colour, especially to Ribbon and Dynamic mics.

The 8 channel A/D is not supplied but listed elsewhere for £275 plus delivery.

There are only superficial marks from being removed from rack mounts to the top and side. These are only visible when outside of rack mounts, and do not affect the units performance. The power transformer supports most countries voltage and only a fuse change will be needed if used for example in the USA.