Boost signal strength to transducers?

After purchasing the unit, I did some research on that "10% THD" and
found that such high distortion firgures are used in able to inflat
the advertised wattage output. I have certainly learned a lot from
this venture!

Which is probably this low-end Sony.

I did read many reviews where people said that the volume level was
not great, but I wasn't going for something the neighbors could hear,
so thought I would be fine with that. The sound quality is so-so.
What I forgot to factor in was that if people were complaining about
low sound output, then this probably mean something that could not
drive the transducers!

I looked at them at Parts Express, but at this point am opting for:

I ordered the hi/lo adaptor and an amp and we shall see how it goes!

Thanks for your feedback.

Dave

Dave <dave@_NO_SPAM_risingfire.net


Hi Dave:
To say that these specs are an overrating is an understatement. This spec
alone is a clue: 285W (1KHz 10%THD),
This is to say that the amplifier unit for the sub can produce 1
kilohertz (annoying midrange tone) of sound at 10 percent distortion and
hit 285 watts.What Sony does not tell you is what is the "usable" power
of this amplifier. It takes a lot of power to produce 80 hertz of sound
at a decent level. Most cheap subwoofers use 100 watt MOSFET amplifiers
and good units use 250 watts plus. This means that the amplifier will
produce 80 hertz of sound (at a decent level) with limited distortion.
The sub amp I use is rated at 300 watts from 22 hertz to 22 kilo hertz at
1% distortion. This means solid clean power at any low frequency. I tried
to find what many call "usable" power ratings for your unit and could
not. I did find many folks who did not like the power of the unit.
What you will need is a "Plate" amplifier to drive your transducers. If
you are running stereo subs then you will need two of these units.
Alternately you could use a stereo amp and a Hi/Lo impedance adaptor.
This unit will hook up to the sub output and give you a RCA style output
jack and level. These are often used in car systems to create a line
level output for an additional amplifier. I have a unit from Pyramid
called a NS 60 that does the trick. You can then safely power your
speakers with the output of the external amps. You are not alone with
this problem Dave as many people are wowed by the 1000 watt spec which is
a farce to say the least. 1000 watts of sound power in a decent speaker
at 1 kilohertz would kill an invading army unfortunately it means nothing
when it comes to true power and home theater.

Mrsee.