Monsoon Head Unit to Alpine CDA-9851
Thread Starter
TECH Senior Member
iTrader: (42)
Joined: Dec 2004
Posts: 5,063
Likes: 0
From: Tomball/Nacogdoches TX
Monsoon Head Unit to Alpine CDA-9851 http://www.onlinecarstereo.com/CarAu...roductID=14774
This may sound like a dumb question, but will this aftermarket head unit be better than my factory monsoon head unit? I've heard before that the monsoon head units have an internal amplifier needed to supply the power to the speakers, but will the alipine head unit be an overall better head unit?
This may sound like a dumb question, but will this aftermarket head unit be better than my factory monsoon head unit? I've heard before that the monsoon head units have an internal amplifier needed to supply the power to the speakers, but will the alipine head unit be an overall better head unit?
TECH Fanatic
Joined: Oct 2002
Posts: 1,255
Likes: 0
From: nor cal (ripon)
I noticed a SLIGHT improvement in clearity. The biggest improvement is to just rewire the system and get some upgraded speakers to with the new HU.
I would also rather get the alpine 9856 for IPOD fullspeed alone.
I would also rather get the alpine 9856 for IPOD fullspeed alone.
Thread Starter
TECH Senior Member
iTrader: (42)
Joined: Dec 2004
Posts: 5,063
Likes: 0
From: Tomball/Nacogdoches TX
yeah I don't use my iPod that much so oh well. I'm getting this head unit pretty much brand new for $100. I already have Pioneer 220watt 4way speakers so I'm expecting this headunit to improve the output of the speakers a lot
TECH Fanatic
Joined: Oct 2002
Posts: 1,255
Likes: 0
From: nor cal (ripon)
Originally Posted by Brian2006
yeah I don't use my iPod that much so oh well. I'm getting this head unit pretty much brand new for $100. I already have Pioneer 220watt 4way speakers so I'm expecting this headunit to improve the output of the speakers a lot
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo TECH Fanatic
Joined: Oct 2002
Posts: 1,255
Likes: 0
From: nor cal (ripon)
Originally Posted by Brian2006
What exactly needs to be rewired? And yes I know the monsoon HU only outputs 2 ohms so how do I "rewire" this new head unit to output 4?
basicaly dissconnect your amp, and run new wires from the speakers to the deck. Make sure you run atleast a 16gauge incase you deside to amp them later on.
Joined: Nov 2003
Posts: 11,330
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
Actually, there's no need to rewire just because of the impedance of the speakers. The Monsoon amp can handle 4-ohm speakers without difficulty although you may notice a reduction in volume depending on the efficiency of your replacement speakers.
The thing that causes more problems is the filtering done by the amp. The sail panel speakers only get low frequency signal from the amp so there isn't much point in putting full-range (coax, 3-way, etc.) speakers there unless you rewire them directly to the head unit. On the other hand, some good aftermarket 6.5S subs or mid-bass speakers mounted there can sound pretty good.
The thing that causes more problems is the filtering done by the amp. The sail panel speakers only get low frequency signal from the amp so there isn't much point in putting full-range (coax, 3-way, etc.) speakers there unless you rewire them directly to the head unit. On the other hand, some good aftermarket 6.5S subs or mid-bass speakers mounted there can sound pretty good.
Staging Lane
Joined: Nov 2005
Posts: 87
Likes: 0
From: Austin, Texas
there seems to be a lot of debate on the actual ohm rating of the stock speakers...
I know in my WS6, the sailpanel subs are definitely 4ohm+4ohm DVC... and I've read on the Houston F-Body Monsoon wiring website that the front components and hatch components are 4 ohm in all Firebirds..
I know in my WS6, the sailpanel subs are definitely 4ohm+4ohm DVC... and I've read on the Houston F-Body Monsoon wiring website that the front components and hatch components are 4 ohm in all Firebirds..
Joined: Nov 2003
Posts: 11,330
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
Originally Posted by ScrapMaker
there seems to be a lot of debate on the actual ohm rating of the stock speakers...
I know in my WS6, the sailpanel subs are definitely 4ohm+4ohm DVC... and I've read on the Houston F-Body Monsoon wiring website that the front components and hatch components are 4 ohm in all Firebirds..
I know in my WS6, the sailpanel subs are definitely 4ohm+4ohm DVC... and I've read on the Houston F-Body Monsoon wiring website that the front components and hatch components are 4 ohm in all Firebirds..
Firebird coupes have ten speaker elements. The doors have 6.5S (oversize) mid-range speakers running at 2-ohms off the amp and .75" tweeters running at 4-ohms off the head unit. The sail panels have 6.5S dual voice coil 4-ohm subs wired in parallel to produce a 2-ohm load for the amp. The hatch has 4" mid-range speakers running at 4-ohms off the amp and .75" tweeters running at 4-ohms off the head unit.
Camaro coupes have eight speaker elements and they all run off the amp. The doors have 2-ohm 6.5S mids and 4-ohm tweeters mounted coaxially but wired as components. The sail panels have 6.5S subs running at 2-ohms and the hatch has 4" extended range speakers running at 4-ohms.
Convertibles are wired similarly to Camaro coupes (all speakers run off the amp) but the speakers are physically different of course.
Staging Lane
Joined: Nov 2005
Posts: 87
Likes: 0
From: Austin, Texas
Someone on LS1.com supposedly investigated all the wiring on his WS6 and found it to match up to the diagrams floating around the internet... that is, that the amp powers everything... even the tweeters...
Joined: Nov 2003
Posts: 11,330
Likes: 346
From: Jacksonville, FL (originally from Toronto Canada)
Originally Posted by ScrapMaker
Someone on LS1.com supposedly investigated all the wiring on his WS6 and found it to match up to the diagrams floating around the internet... that is, that the amp powers everything... even the tweeters...
