Hello everyone,
I decided to create a topic about canton amplifier 3G035466. There is similar topic on Octavia forum but there is a 3Q0035466A amp.
Speaking of speaker ratings for the Canton system in the Superb......
Some photos attached.
So, there is 3x TDA7803A nad 2x FDA802.
TDA7803A is a quad channel amplifier capable of deliver – 4 x 27 W 4 Ω @ 14.4 V, 1 kHz, THD = 10% – 4 x 47 W 2 Ω @ 14.4 V, 1 kHz, THD = 10%
FDA802 is a dual channel class-D amplifier capable of deliver– 2 x 120 W /4 Ω @ 35 V, 1 kHz THD = 1% (2 x150 W /4 Ω @ 35 V, 1 kHz THD =10%) – 2 x 140 W /8 Ω @ 50 V, 1 kHz THD = 1% (2 x180 W /8 Ω @ 50 V, 1 kHz THD =10%)
Link for datasheets:
https://www.st.com/resource/en/datasheet/tda7803a.pdf
https://www.st.com/resource/en/data_brief/fda802.pdf
FDA802 is capable of driving 4 Ω speakers but on 35V. I cannot find any full datasheet so no characteristics is available. But judging by the main capacitors voltage (63V) probably it is powered from 50V so 4 Ω speakers might be an issue.
I will test that soon.
So info from a Skoda brochure should be quite precise. 610W is and RMS power.