Bt4180....WOW!
My BT4180 will end up running 8 speakers (2 pair per channel front and rear):
BT7P1s in the fairing, BT477s (the bare version of their BT471 6.5" fairing speaker kit) in my lower fairings up front.
BT479s in HogTunes 6x9 lids along with another pair of BT477s in my HogTunes Tour Pak speaker pods.
Each pair is in parallel on their respective channels (F/R). I have a Power Acoustik RZ4.2000D powering things right now with satisfactory results, but expect a fairly significant boost in power with the BT4180. I'm just waiting on temps above freezing for more than one day so I can actually do the install. AAWAV has it on good authority that the BT4180 puts out 330W per channel into 2 ohms, so in my case I should be getting 165W into each pair of speakers, as opposed to 140W per channel (70 per pair) with the RZ4.
Regardless, the BT4810 will give you the headroom and power you need if/when you add speakers. And you likely WILL add speakers down the road!
BT7P1s in the fairing, BT477s (the bare version of their BT471 6.5" fairing speaker kit) in my lower fairings up front.
BT479s in HogTunes 6x9 lids along with another pair of BT477s in my HogTunes Tour Pak speaker pods.
Each pair is in parallel on their respective channels (F/R). I have a Power Acoustik RZ4.2000D powering things right now with satisfactory results, but expect a fairly significant boost in power with the BT4180. I'm just waiting on temps above freezing for more than one day so I can actually do the install. AAWAV has it on good authority that the BT4180 puts out 330W per channel into 2 ohms, so in my case I should be getting 165W into each pair of speakers, as opposed to 140W per channel (70 per pair) with the RZ4.
Regardless, the BT4810 will give you the headroom and power you need if/when you add speakers. And you likely WILL add speakers down the road!
Ultimate HDF Member
Joined: Oct 2012
Posts: 6,621
Likes: 412
From: Indianapolis IN.
Gliden - You're fine running two speakers up front with the BT2180. You can actually run 4 max in parallel if they are 4 Ohm speakers. Same thing with the BT4180. 8 speakers can easily be ran in parallel due to the power and efficiency of these amps. It's a beautiful thing!
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Gliden - You're fine running two speakers up front with the BT2180. You can actually run 4 max in parallel if they are 4 Ohm speakers. Same thing with the BT4180. 8 speakers can easily be ran in parallel due to the power and efficiency of these amps. It's a beautiful thing!
So if I decide next winter to add lids w speakers I'd probably need another 2180 or sell this one and get the 4 ch?
Ultimate HDF Member
Joined: Oct 2012
Posts: 6,621
Likes: 412
From: Indianapolis IN.
Can't lose either way!
Road Warrior
Joined: Sep 2008
Posts: 1,873
Likes: 99
From: G-burg, Penna
BT 4180 Power.....
Finally got a little warmer today and did the install on the 4180 and all I can say is WOW...wait someone started that thread....Anyway, it sounds crips, clear and frinken loud with the 7.1 and 6.5 Titans. Did the adjustments thru the Alpine HU and the jams are back baby....It's really iamazing. Thanks BILL & BT staff. Well done.
Last edited by duglaura&flhti; Mar 9, 2015 at 04:59 AM.
Club Member
Joined: Jun 2009
Posts: 5,323
Likes: 37
From: NJ
Thats exactly what I did Gliden.
Finally got a little warmer today and did the install on the 4180 and all I can say is WOW...wait someone started that thread....Anyway, it sounds crips, clear and frinken loud with the 7.1 and 6.5 Titans. Did the adjustments thru the Alpine HU and the jams are back baby....It's really iamazing. Thanks BILL & BT staff. Well done.
Finally got a little warmer today and did the install on the 4180 and all I can say is WOW...wait someone started that thread....Anyway, it sounds crips, clear and frinken loud with the 7.1 and 6.5 Titans. Did the adjustments thru the Alpine HU and the jams are back baby....It's really iamazing. Thanks BILL & BT staff. Well done.
Road Captain
Joined: Sep 2010
Posts: 722
Likes: 2
From: Deep south in a bunker
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
The Best and Worst Harley-Davidson Moves of 2025
Verdad Gallardo
Thread
Thread Starter
Forum
Replies
Last Post