Help with setting Crossover
HEADUNIT
Soundstream HDHU.14+
Digital EQ
Crossover: Off or up to 125 @ 12 or 24 slope
AMPLIFIER
ARC Moto720
Ch 1-2 Bridged | Ch 3-4 Bridged
4- Channels @ 4 Ohms 150 Watts
4-Channels @ 2 Ohms 180 Watts
2-Channel @ 4 Ohms (Bridged) 360 Watts (Bridged)
2-Channel @ 2-Ohms (Bridge) Not Recommended
Frequency Response 10Hz - 20kHz
Amplifier Frequency Response (Using Factory Radio) 85Hz - 20kHz
Crossover Range 50Hz - 550Hz
Bass Boost No
Remote Level Control Included No
Input Sensitivity (Low) 200mV - 3.5V
Built in Fan Cooling Yes
Signal Input Connection Type Pigtail (PNP) Harness
Pigtail Harness Included Yes, RCA harness included
Signal Input Connection compatibility Direct connection to RCA Harness, PSM or MPAK wire harness kit
Dimensions 8.125"(L) x 5.43"(W) x 1.8"(H)
SPEAKERS
x2 In my RGS Fairing
CH65.4 6.5" 2-Way Full Range 4 Ohm Coaxial 500W RMS / 1000W MAX (Pair)
FEATURES
• 500W RMS / 1000W MAX Power Handling – PAIR
• Neodymium High-Energy / Light Weight N35H Magnet Structure
• Heavy Duty / High-Temp Cast Aluminum Basket
• 2.0” High-Temp (BlackCoat ) Voice Coil for Midbass - 4 or 2 Ohm
• 1.4” Aluminum Diaphragm High-Temp Voice Coil for Tweeter - 8 Ohm
• Water Repellant Pressed Paper cone with Treated Cloth Surround
• Frequency Response: 75Hz -20Khz +/- 5dB - CH65.4/CH65.2
• High Sensitivity: 96.4dB /99dB Average (1W/1M - 2.83V) - CH65.4 / CH65.2
• 12dB Crossover with Custom Tooled / Vented Case
Lots of speakers show specs of 70 or 75hz and up. I've tried countless 6.5's, none were able to play below 100hz with ample power.
Oh no not full power. Max is 500, RMS is 250 per speaker, but the amp is 360 per channel bridged.
The HDHU.14+ has a max volume setting of 50 on the dial, but lets you set max volume in the settings. I turned the volume to 45 and using a test tone of 1kHz -5db, set the gains with my oscilloscope. I never saw clipping on the scope. Then set max volume to 40 in the HDHU.14+ settings.
I should put my meter on the amp, but right now the gains are set to just over half.
I know just enough about audio settings to get me in trouble, but hopefully not blow my speakers.
Last edited by Glenn Gorman; Aug 19, 2024 at 04:54 PM.
Oh no not full power. Max is 500, RMS is 250 per speaker, but the amp is 360 per channel bridged.
The HDHU.14+ has a max volume setting of 50 on the dial, but lets you set max volume in the settings. I turned the volume to 45 and using a test tone of 1kHz -5db, set the gains with my oscilloscope. I never saw clipping on the scope. Then set max volume to 40 in the HDHU.14+ settings.
I should put my meter on the amp, but right now the gains are set to just over half.
I know just enough about audio settings to get me in trouble, but hopefully not blow my speakers.
Ive ran them anywhere from 100w to 380w each speaker.
I would first set them at 200W each. Set your head unit at anything under 48. Set crossovers to 120.
Ride bike around and see what ya think. Increase power if you want more. Decrease power and decrease x over if you want more kick/punch.
I had mine at 380w and crossed at 100, DSPd. Wanted to see how they held up. And they did. BUT I would not recommend it, unless you want to take a chance at blowing them.
Ive ran them anywhere from 100w to 380w each speaker.
I would first set them at 200W each. Set your head unit at anything under 48. Set crossovers to 120.
Ride bike around and see what ya think. Increase power if you want more. Decrease power and decrease x over if you want more kick/punch.
I had mine at 380w and crossed at 100, DSPd. Wanted to see how they held up. And they did. BUT I would not recommend it, unless you want to take a chance at blowing them.
Last edited by golfblues; Aug 19, 2024 at 06:26 PM.
Ive ran them anywhere from 100w to 380w each speaker.
I would first set them at 200W each. Set your head unit at anything under 48. Set crossovers to 120.
Ride bike around and see what ya think. Increase power if you want more. Decrease power and decrease x over if you want more kick/punch.
I had mine at 380w and crossed at 100, DSPd. Wanted to see how they held up. And they did. BUT I would not recommend it, unless you want to take a chance at blowing them.
Trending Topics
Only using two speakers in the RGS fairing, what do you like, for cruising @ 80, if not the Cicada's?
The Best of Harley-Davidson for Lifelong Riders
Otherwise, I like mmats pa601cx's and Euphoria EX6NCX d for 2 speaker setups.
I have not heard the Cicada CXX's yet but have heard really good reviews on them.
Last edited by cshocker; Aug 21, 2024 at 01:57 PM.
Well guess what, still nothing but zero's on the screen. I hooked the speakers back up and no problem there. Hooked the Oscilloscope up and no problem there.
Here's the meter that I picked up from HD and set to AC. And just to make sure that I had good contact, I hooked speaker wires up to the amp and used alligator clips to hold the wire on the probes.









