Menu
Forum
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Gallery
New media
New comments
Search media
Members
Registered members
Current visitors
Classifieds Member Feedback
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Register
Forum
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
Log in / Join
What’s new
Search
Search titles and first posts only
Search titles only
Search titles and first posts only
Search titles only
General Car Audio
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Build Logs
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Home Audio
Off-topic Discussion
The Lounge
What's new
Search forums
Menu
Reply to thread
Forum
Car Audio Discussion
Amplifiers
Comparing ARC amps..?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="3.5Max6spd" data-source="post: 2410539" data-attributes="member: 555373"><p>Well XXKs retailed for more than the FD's. So they've managed to make the FD's not only better, but at a better retail point. The FD's also use Sanken bipolar output devices whereas the XXK do not.</p><p></p><p>Copied from a Fred Lynch post on ECA..</p><p></p><p>"ok,</p><p></p><p>I guess its time to touch on this once again..... The FD series is the replacement for the XXK line since it is being discontinued and phased out as we speak.</p><p></p><p>The FD series is a superior design in the following areas-</p><p></p><p>1) Heatsink and Chassis design (Thermally) This unit uses much more physical mass and units of material per sq mm with a much high level of thermal control and heat regulation within the rail sections of the amplifier</p><p></p><p>2) New assembly and qc procedures have now allowed us to re-allocate production costs to the selection of much higher quality, much tighter tolerance, and even private labeled parts to be installed onto the amplifier</p><p></p><p>3) The boards have been completley redesigned and relayed vs. the XXK sereis with shortened and much more direct path lengths between the output devices and the speaker terminals</p><p></p><p>4) Certain circuit protection systems learned from the SE line has been integrated into all of our new lines to extended the life and reliability of the amplifier and protect it from things like short circuits and other unforseen external issues</p><p></p><p>5) The FD series amplifiers are testing in at lower THD specs with up to 9% more power in most cases over XXK which XXK was still average 11% more than factory rated specifications.</p><p></p><p>These are just a few.....</p><p></p><p>Listening.... The are both great amplifiers and unless you have the ears of some very resilliant animals you will most likely not hear the difference watt for watt but with the fd you do get a bit more juice.</p><p></p><p>I run the FD series in my daily driver (FD1200.1 and FD4150) and both are mounted in the worse possible application possible (Spare tire well in a sealed compartment) and even with the intense heat of this last summer they never shut down, they never lost tonal or dynamic performance, and never left me hanging or dissapointed on my purchase....</p><p></p><p>Personal opinion on the cosmetics.....</p><p></p><p>I like the cosmetics over the XXK.... very smooth and flexiable design. the colors match with most any color of interior of vehicle and has flexiable styling that works with everything from a hotrod, to a import, to a high end luxary car.</p><p></p><p>The amplifier comes with multiple logo plates which are all CNC'D aluminum which gives you the option of to use or not to use the end caps depending on your installation which gives it a lot of flexibility on looking good for any installation...</p><p></p><p>Drawbacks (IMO) -</p><p></p><p>The amplifier is 10" wide which does not make it sutable for a some under the seat installations and some stacking installations in some vehicles....</p><p></p><p>also the block terminals use phillips screws which I personally prefer Allen screws which allows better contact between the driver and the screw with the aboloty to get more torque and pressure on the screw.</p><p></p><p>This is my $.02 and im sticking to it...."</p></blockquote><p></p>
[QUOTE="3.5Max6spd, post: 2410539, member: 555373"] Well XXKs retailed for more than the FD's. So they've managed to make the FD's not only better, but at a better retail point. The FD's also use Sanken bipolar output devices whereas the XXK do not. Copied from a Fred Lynch post on ECA.. "ok, I guess its time to touch on this once again..... The FD series is the replacement for the XXK line since it is being discontinued and phased out as we speak. The FD series is a superior design in the following areas- 1) Heatsink and Chassis design (Thermally) This unit uses much more physical mass and units of material per sq mm with a much high level of thermal control and heat regulation within the rail sections of the amplifier 2) New assembly and qc procedures have now allowed us to re-allocate production costs to the selection of much higher quality, much tighter tolerance, and even private labeled parts to be installed onto the amplifier 3) The boards have been completley redesigned and relayed vs. the XXK sereis with shortened and much more direct path lengths between the output devices and the speaker terminals 4) Certain circuit protection systems learned from the SE line has been integrated into all of our new lines to extended the life and reliability of the amplifier and protect it from things like short circuits and other unforseen external issues 5) The FD series amplifiers are testing in at lower THD specs with up to 9% more power in most cases over XXK which XXK was still average 11% more than factory rated specifications. These are just a few..... Listening.... The are both great amplifiers and unless you have the ears of some very resilliant animals you will most likely not hear the difference watt for watt but with the fd you do get a bit more juice. I run the FD series in my daily driver (FD1200.1 and FD4150) and both are mounted in the worse possible application possible (Spare tire well in a sealed compartment) and even with the intense heat of this last summer they never shut down, they never lost tonal or dynamic performance, and never left me hanging or dissapointed on my purchase.... Personal opinion on the cosmetics..... I like the cosmetics over the XXK.... very smooth and flexiable design. the colors match with most any color of interior of vehicle and has flexiable styling that works with everything from a hotrod, to a import, to a high end luxary car. The amplifier comes with multiple logo plates which are all CNC'D aluminum which gives you the option of to use or not to use the end caps depending on your installation which gives it a lot of flexibility on looking good for any installation... Drawbacks (IMO) - The amplifier is 10" wide which does not make it sutable for a some under the seat installations and some stacking installations in some vehicles.... also the block terminals use phillips screws which I personally prefer Allen screws which allows better contact between the driver and the screw with the aboloty to get more torque and pressure on the screw. This is my $.02 and im sticking to it...." [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Discussion
Amplifiers
Comparing ARC amps..?
Top
Menu
What's new
Forum list
