If you crave a powerful distortion with dynamic tube-like sound, prepare to meet your ‘can’t live without’ pedal.
Powered by KHDK’s original circuit, the No.1 is designed in the spirit of an overdriven tube amp. Turn the No.1 on and you’ll feel like you’ve switched to a powerful distortion channel on a tube amp.
“I plugged it in and was instantly knocked out. It’s a very amp overdrive-like pedal.”– Pete Thorn
The No.1’s unique feature is its double gain control
One just wasn’t enough! That’s why we built No.1 with two gain controls.
Gain one controls the first gain stage from a pure clean boost to a naturally compressing overdrive. Gain two shares one knob with the Bass control. It cleverly controls the gain and the low-end of the next gain stage, which adds rich harmonics, bottom end, and natural tube-like saturation to your tone. It’s designed as an active high-pass filter for the second gain stage and allows you to set the amount of bottom-end with precision. The result is rich, harmonic overdrive.
It’s versatile and bold: with the Gain switch on Lo, the No.1 ranges from a barely-breaking-up overdrive to a classic crunch. Set the Gain on Hi and you can take it from an aggressive, dirty rhythm tone all the way up to a beautiful lead tone.
Technology
No.1 utilizes KHDK’s original true bypass circuit using our special blend of solid state and mosfet technology. Like all KHDK pedals, No.1 is proudly crafted and quality-tested in Kentucky, USA.
CONTROLS
GAIN controls the unity gain of the circuit.
VOLUME controls the overall output volume of the No. 1.
The HI/LO switch is tied directly into the gain. The lo setting offers a warm, tube-like boost and a subtle crunchy overdrive, great for rhythm playing. The hi setting adds saturation, sustain, low end and compression. This setting is recommended for a more powerful rhythm or soloing.
BASS controls the bass and lower mid-frequency gain. The bass is tied into the gain, making it a secondary gain control and enhancing your low end.
TREBLE control is a passive, natural sounding low-pass filter. It cuts high end and offers a wide frequency range. Turned clockwise, it becomes raw, aggressive and cuts through. Turned counterclockwise, it cuts highs for a more mellow and warm tone.
FOOTSWITCH engages your No. 1 to “on” or True bypass mode.
POWER
The KHDK No.1 Overdrive is powered by a single 9V battery. You can access the battery connection by unscrewing the bottom plate of the pedal enclosure. Alternatively, plug in an external 9V DC (center negative) power supply.
SPECIFICATIONS
Bypass mode: True Bypass
Dimensions: 120 x 65 x 40 mm deep (Width x Depth x Height)
Input Connector: Type Standard ¼” jack – mono/TS
Output Connector: Type Standard ¼” jack – mono/TS
Power Input: Standard 9V Battery or 9V DC (center negative) power supply.

MEINL MDJBM DJEMBE KOTT MEDIUM
MEINL SH16 SPARK SHAKER
MEINL SW1 SAMBA WHISTLE
ERNIE BALL .030 WOUND ÜKSIK KEEL
YAMAHA TROMPET/KORNET VALVE PROTECTOR LEATHER
IBANEZ SR300EBL LEFT HANDED WEATHERED MUST
VIC FIRTH AMERICAN KLASSIKALINE HICKORY 7AN NAILON TIP
XSONIC XTONE SMART KITARR AUDIOLIIDES
MEINL LÖÖKPILL 5 1/2 DAYAN & 8 1/2 BAYAN TABLA KOMPLEKT
STAGG VIIULI POOGEN 3/4
K&M 26740 MONITOR STATIIV
EVANS 14 INCH CALFTONE TOM HEAD
EVANS EC1 KAETUD 12 INCH
DADDARIO J2701
STUDIO49 AX 2000 ALTXYLOPHONE
BOSS KATANA 50 MKIII KITARR AMPLIFIER
ROLAND A49WH USB MIDI KLAHVPILL CONTROLLER
YAMAHA FX 370CTBS ELEKTROAKUSTILINE KITARR, TOBACCO SUNBURST
ALESIS STRIKE MULTIPAD
YAMAHA REFACE DX
K&M ADJUSTABLE STUDIO NEAR-FIELD MONITOR STATIIV MUST
EVANS EC1 KAETUD 10 INCH
MEINL MCBD COWBELL HOLDER
MEINL NINO569R EGG MARAKAS
HOHNER MARINE BAND 1896 F-MAJOR SUUPILLID
EVANS 10 ONYX 2-PLY KAETUD
AKG MPA V-L PHANTOM POWER ADAPTER
YAMAHA CPX KOHVER
KLOTZ AY50100 Y-KAABEL 1M
MEINL MINI CAJON SHAKER NATURAALNE
EVANS 12 GENERA G1 KAETUD TOM HEAD
KLOTZ TITANIUM PSP 3M SUPREME KITARR KAABEL + SILENTPLUG
DADDARIO PRELUDE J810 1/2M VIIULIKEELTE KOMPLEKT MEDIUM
STUDIO49 AM 2000 ALTMETALLOPHONE
K&M 49412 PANEL 2-SPACES
ORANGE O TONE 40 COMBO MUST
DADDARIO ACCESSORIES RIHM PWSPL200
YAMAHA TRBX304 VALGE
STAGG VIIULI POOGEN 4/4
IK MULTIMEDIA IRIG POWERBRIDGE
MEINL 16BYZANCE THIN CRASH
STAGG DJ DESKTOP STATIIV + LOWER SUPPORT PLATE DJSLT20
WOLF FORTE SECONDO 1/2-1/4 SHOULDER REST
KLOTZ ATJJ0300 TWINCABLE 3M
STAGG CTUC9 CLIP-ON TUNER
ERNIE BALL .034 EARTHWOOD ÜKSIK KEEL
STAGG MH6A MIKROFON HOLDER
KLOTZ SC-1 KÕLAR KAABEL 1M SPEAKON-JACK
YAMAHA FG820 AKUSTILINE KITARR BROWN SUNBURST
MOOER ENSEMBLE KING CHORUS PEDAAL
BOSS TU3 CHROMATIC TUNER
DADDARIO ACCESSORIES 25LK03 KISS RIHM
STUDIO49 SM-1000 SOPRAN METALLOPHONE
FENDER DELUXE INSTRUMENT KAABEL TWEED ANGLE 4,5M
ERNIE BALL 034 SLINKY ACOUSTIC ÜKSIK
BOSS OS2 OVERDRIVE DISTORTION
EVANS EC2S FROSTED 8 IN.
KEELEY D&M DRIVE
K&M 25680 ONE-HAND-MIKROFONI STATIIV
PROTECTION RACKET CAJ3 CAJON KOTT
DADDARIO ACCESSORIES 74T000 WIDE RIHM
JACKSON JS SEERIA SURFCASTER JS22 HT, GLOSS BLACK
AHEAD STICK TIP BALL 