alex6999 10+ year member
Member
bought from audiosavings
here NEW CADENCE 6.5" 300 WATT SLIM CAR COMPONENT SPEAKERS : eBay Motors (item 390162618910 end time Apr-15-10 23:07:21 PDT)
mclerico83 recommend it.
when i increase volume - it start rattling.
it not loud when start rattling
i checked both speakers, one installed and one connect in hand.
1. it was connected through cadence crossover.
HU crossower was setup to 63 Hz -12db
2. it was connected direct.
it rattling at low frequencies
100 Hz at -18 db still rattling
100 Hz at -24 db not rattling
WHY? is it normal?
what if i don have crossover in HU? i need to turn knob of amp to 200 Hz to prevent rattling, i suppose amp xover -12db
thanks
PS:
HU Alpine CDA9833
Amp Power Acoustik GOTHIC OV2-1250
1250 peak, 220 RMS per channel
Bridged RMS Power: 560 watts
i think real RMS 12V * 50A * 50% AB Amp Efficiency = 300 total bridged.
so i think i can do 115W RMS per channel. its enough for 75 rms speaker. without THD
PPS: cheap $30 coaxs with cool lights from walmart plays better.
here NEW CADENCE 6.5" 300 WATT SLIM CAR COMPONENT SPEAKERS : eBay Motors (item 390162618910 end time Apr-15-10 23:07:21 PDT)
mclerico83 recommend it.
when i increase volume - it start rattling.
it not loud when start rattling
i checked both speakers, one installed and one connect in hand.
1. it was connected through cadence crossover.
HU crossower was setup to 63 Hz -12db
2. it was connected direct.
it rattling at low frequencies
100 Hz at -18 db still rattling
100 Hz at -24 db not rattling
WHY? is it normal?
what if i don have crossover in HU? i need to turn knob of amp to 200 Hz to prevent rattling, i suppose amp xover -12db
thanks
PS:
HU Alpine CDA9833
Amp Power Acoustik GOTHIC OV2-1250
1250 peak, 220 RMS per channel
Bridged RMS Power: 560 watts
i think real RMS 12V * 50A * 50% AB Amp Efficiency = 300 total bridged.
so i think i can do 115W RMS per channel. its enough for 75 rms speaker. without THD
PPS: cheap $30 coaxs with cool lights from walmart plays better.
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