Clarion XC6410 Fascicule

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P E R F O R M A N C E   A U T O   &   S O U N D
CLARION
XC6410
AMPLIFIER REVIEW
W O R D S   A N D   M E A S U R E M E N T S   B Y   G A R R Y   S P R I N G G A Y
W
hen most enthusiasts 
think about historical 
car audio companies, 
our thoughts tend to gravitate 
towards the iconic American 
brands. So, it may come as  
a surprise to some that one of 
the oldest car audio companies 
on the planet began in Japan in 
1940. Long before even I was 
born, the Hakusan Wireless 
Electric Company began 
manufacturing battery-operated 
household radios. Known since 
1970 as the Clarion company, the 
brand boasts a long list of 
technological achievements and 
industry firsts.
Continuing that tradition,  
the good folks at Clarion 
Canada have sent me one of its 
latest four-channel amplifiers 
– the XC6410 – to put through 
its paces. 
 FEATURES
The Clarion XC6410 is a class D full range, 
four-channel amplifier designed around a very 
compact, classy looking two-tone brushed 
aluminum chassis. And, when I say compact, 
I’m not kidding. Measuring only 8.75 x 6.8 x 2.2 
inches, it’s hard to believe the amplifier is rated 
at 85 W x 4 at four ohms, and a whopping 125 
W x 4 at two ohms. But, thanks to the effi-
ciency of a well-executed class D topology, the 
heat dissipation of the amp is easily managed 
and the power is very real.
Of course, the amplifier can be used in 
bridged mode where you can create four, 
three or two channels, depending on the 
architecture of your system. Special signal 
steering switches configure the amp for four-
channel stereo, three-channel stereo/mono 
or true two-channel stereo output. 
There are quite a few handy and welcome 
features you won’t find on many competitive 
products. For example, the ability to turn on 
the amplifier with high level input signal when 
a remote wire doesn’t exist; or, being able to 
have bass boost applied to all four channels 
or only two. Convenience features like these 
make the XC6410 easy to install in a wide 
variety of applications and can really come in 
handy. Speaking of a variety of applications, 
the XC6410 is also fully treated with confor-
mal coating and nickel-plated hardware for 
complete compatibility in marine applications. 
Connections and controls are all found on 
the front edge of the amplifier and accessible 
by removing two small screws holding an alu-
minum trim panel in place (it normally hides 
and protects the connections and controls). 
In addition to the aforementioned stereo/
bridged/mono switches, there are more 
switches for using one or two pairs of RCA in-
puts, the “auto sense” feature and, of course, 
the usual crossover-type and range switches. 
On the XC6410, channels one and two can be 
set to full range, high pass or low pass with  
a frequency range of 50 to 500 Hz. Channels 
three and four are the same, but add a 10 
times (x10) range switch for a frequency span 
of 50 to 5kHz.
Terminals are basic terminal blocks with 
nickel-plated Phillips screws. The RCA input 
connectors are also nickel-plated. A special 
high level-to-RCA adapter is included to drop 
the input voltage down before it enters the 
amp to allow connection directly to speaker 
level signals.
The XC6410 scores 
very high in all 
measurements 
with exceptional 
frequency 
response, signal-
to-noise and 
stereo separation 
performance