Vermes
Advanced Member level 4
It is a construction of modified Altus 110 with:
- new switches Alt-18
- Bass reflex 70mm
- new damping
- new cables
- new speakers GDWT 9/100 FP (8ohm)
- reinforced speakers housing
- „+” changed with „-” on tweeter
The PCB was made in thermal transfer method.
The PCB was etched in aquarium tank with dimensions of 45x30x6 cm with aeration stone across the entire width and 300W heater. Temperature 45 degrees Celsius was maintained easily through the whole process of etching. The heater was once turned on to heat the water to 50 degrees Celsius. Holes were drilled with Proxxon FBS 240/E.
Bass Reflex was made of PVC pipes with diameter of 55mm, 7cm long. They were put into original BR. Black nets were cut before inserting and gluing.
Dampling was made of 1cm thick wadding. It was glued on all walls except the front wall with speakers.
Cables in this project are 2-wire 2,5mm^2. Cable from the amplifier to speakers is 6-7m long. Twitters are GDWT 9/100 FP 8ohm. Reinforcement of the speakers housing was also made.
„+” was changed with „-” in the tweeter.
Link to original thread - Altus 110 kilka modyfikacji (Alt-18,BR, GDWT 9/100FP, usztywnienie kolumny)