Limited Warranty
Seymour Duncan offers the original purchaser a one-year limited warranty on
both labor and materials starting from the day this product is purchased from
an Authorized Seymour Duncan Dealer. We will repair or replace this product,
at our option, if it fails due to faulty workmanship or materials during this
period. Defective products should be returned to your USA dealer, international
distributor, or sent direct to our factory postage prepaid along with dated proof
of purchase (e.g., original store receipt) and an RMA number clearly written on
the outside of the box. Please call our factory for issuance of an RMA number.
This warranty does not apply to damage to this product or an instrument
caused by misuse, mishandling, accident, abuse, alteration, modification,
or unauthorized repairs. Product appearance and normal wear and tear
(worn paint, scratches, etc.) are not covered by this warranty. Seymour Duncan
reserves the right to be the sole arbiter as to the misuse or abuse of this
product. Seymour Duncan assumes no liability for any incidental or
consequential damages, which may result from the failure of this product.
Any warranties implied in fact or by law are limited to the duration of this
express limited warranty.
Keepin’ It Clean
Neither too much nor too little, this
will allow your chords to ring and
sustain naturally, just as Seymour
intended. Adjust the Double Back
to taste to further increase tran-
sients, and keep it going without
ever sounding forced or artificial.
Sustainimaniac
This will give you more than
enough time to go out and grab a
bite. Great for chords and better for
single notes, this flub-free, musi-
cal and virtually silent sustain can
seemingly go on forever.
Funky Chops
Rev up your bridge single coil
and get that picking hand work-
ing. Give your rhythmic chops
and single-note melody lines a
rounded edge that sounds great
on the three treble strings and add
muscle to those Studio 54-style
stops. Damn right!
Lo-Fi Superstar
Especially effective when using
humbuckers, try this to wildly
change your tone from warm and
full to scratchy and toppy at the
press of a footswitch. Want to rec-
reate that garage band feel? If you
have a use for a skinny ‘bucker
tone try this little trick for starters.
Clean Solo Exhumation
You don’t want any additional
drive with a clean boost, and this
setting gives you just that. Adjust
the volume pot to the output of
your amp and balance the Double
Back to the tone of your guitar:
your clean solos need never be
buried again.
Fat Lead Boost
Push your solos up to the front
of the mix while putting some
weight behind the punch. The
Mid Boosted Double Back drives
the amp hard while the Sustain
is the wind at your back.
Example Settings
Compression is a subtle effect, so try some of these example settings out
as a way of finding the best tone for you.
Designed and Distributed by:
Seymour Duncan / Basslines
5427 Hollister Ave.
Santa Barbara, CA 93111-2345 USA
tel: 805-964-9610
fax: 805-964-9749
www.seymourduncan.com
The SFX-09 is made in China. Designed and tested in USA. Printed in China.
© 2009
P/N: 501070-140 REV.A
6
5
7
• Compression Ratio: Adjustable from 1:1 to 20:1
• Maximum Compressor Gain: +50dB
• Attack Speed: Adjustable from 3.2ms to 50ms
• Double Back Gain: Fully “off” to +34dB
• Battery Life: 100 Hours with a premium alkaline battery
• Power Source: 9V battery or external 9VDC regulated wall
transformer, center pin negative. 5mA current drain
• Input Impedance: 1 Megohm (1000K ohms)
• Output Impedance: 2.75K ohms maximum
• Output Clipping Level: 7V Peak-to-Peak
• Distortion: Less than 0.3% at 300mV RMS output at 1 kHz
• Noise referred to Input: -102dBV unweighted,
400Hz – 20kHz, input shorted
• Type of Circuitry: True bypass, class A
• Compressor type: Voltage Controlled Amplifier (VCA)
• Dimensions: 4.75” wide X 5.0” tall X 2.3” high
• Weight 1.5 lbs.
• Chassis material 16 Gauge Steel
SFX-09 SPECIFICATIONS
Output Jack –
Provides the output signal. Run a cable from this jack to
the input of your guitar amp or effects chain (or if compatible and desired,
the return from your amps effects loop)
Power Jack –
Connect a regulated 9-volt DC adapter (center negative)
here if you opt not to run the compressor on a 9-volt battery.
We recommend the Seymour Duncan 11802 PSU.
Between Guitar and Amp
Take the 1/4” mono instrument cable from your guitar and plug it into the
Compressor’s input jack. Run another cable from the output jack to the
input of your amplifier or effects chain. Turn the Double Back to zero and
the other controls to 12 o’clock, then hit the On/Bypass footswitch; this is a
great place to start. Balance the sustain, attack and release pots to obtain
your desired level and feel of compression, then use the Double Back pot
to add your desired level of natural transients. Listen to the warmth and
sustain coming through.
Where in the chain?
It’s often best to put a compressor at the beginning of your effects chain,
but sometimes it can work more efficiently when placed after such filter
effects as a wah. You won’t do any damage putting any stompbox in the
so-called wrong order, so experiment and find what works best for you.
Just recognize that compressors increase the volume of soft notes,
and in turn, increase your existing noise floor. So placing compressors
after distortion, or other noisy effects pedals will increase the noise floor.
BACK PANEL
4
