specification of QA-111-bal

Model no: QA-111-bal

line stage balanced input and output pre-amplifier

For a traditional balanced design, you must have both the input and output balanced in order to get the added boost in performance of balanced amplification. With our new state-of-the-art design this limitation no longer exists. This means you can use either the balanced input or output, and still have the sonic improvement of balanced amplification. (About a 70% of improvement which input + output balanced amplification can achieve).

The lowest photo set shows a very special version with a bigger Transformer and big tube rectifier with 3 inputs. As well it includes a solid-oak chassis with metal on top (additional cost applied)

Specifications

No. of inputs	1 set of RCA inputs , 1 set of balanced inputs
No. of outputs	1 RCA and 1 balanced pre-amp outputs , 1set of record outputs
Freq response	2Hz - 150Khz (-3db)
S/N	better than 80 db

Gain	x10 - x20 depend on tube
Phase	180deg inverted
manufacturing	hand-wired point to point
Tubes used	4 x 6DJ8 /ECC88/6922 (option: 12AX7/12AU7/ECC83/ECC82)

1 year parts and labor warranty under normal operation conditions

Options :

Upgrade to enhanced Tx with 5U4G rectifier add C$400

0/180deg output phase selector add C$150

standard chassis : Gold/ Black/Metallic MDF , Aluminum chassis

(optional chassis : Mirror steel, solid-oak, black piano )