AdrenaLinn I, II and III

Hardware Differences

There are 3 AdrenaLinn models: AdrenaLinn, AdrenaLinn II and AdrenaLinn III. The hardware for all models is nearly identical, containing a single circuit board with all components, mounted in a metal chassis with an adhesive front panel label. The different models are:

 

Serial numbers A00001 to A02199:

These units were originally released as “AdrenaLinn” (original model) units and have a circuit board without headphone jack and an indigo blue chassis without a headphone jack hole.  Many of these units have been converted to AdrenaLinn II or AdrenaLinn III by with our “AdrenaLinn II (or III) Upgrade Kit”, consisting of 2 new socketed software chips for the circuit board and a new indigo blue adhesive front panel label.

 

Serial numbers A02200 to A05722:

These units were originally released as “AdrenaLinn” (original model) units and have a circuit board with headphone jack and an indigo blue chassis containing a hole for the headphone jack.  Many of these units have been converted to AdrenaLinn II or AdrenaLinn III by with our “AdrenaLinn II (or III) Upgrade Kit”, consisting of 2 new socketed chips and a new indigo blue adhesive front panel label.

 

Serial numbers A05723 to approximately A08250:

These units were originally released as “AdrenaLinn II” and have the same circuit board with headphone jack as serial numbers A02200 to A05722 but with a black chassis containing a hole for the headphone jack.  However, many of these units have been converted to AdrenaLinn III by our “AdrenaLinn III Upgrade Kit”, consisting of 2 new socketed software chips and a new adhesive front panel label.

 

Serial numbers from approximately A08250 and above:

These are “AdrenaLinn III” units and have the same circuit board with headphone jack and black chassis with a hole for the headphone jack as serial numbers A05723 to approximately A08250. The only difference is the 2 socketed software chips and adhesive light blue front panel label.

 

In summary, there are only 2 revisions of the single circuit board:

 

1) Original circuit board without headphone jack.

2) Revised circuit board with headphone jack

 

Other than the headphone jack and minor differences to the input preamp, they are identical.

Roger Linn Design  •  Berkeley, CA, USA

Roger Linn Design  •  Berkeley, CA, USA