About This Item
Description
Adds a dedicated Guitar In/Out plus a separate effects-loop Dec In/Out to ISP's newest noise-reduction technology, so it can track your guitar directly while still cleaning up noise from your amp's effects loop.
Which ISP Decimator is this?
ISP's noise-reduction line has two generations. The compact micro pedals — Deci-Mate and Deci-Mate G — use the earlier analog Decimator circuit. The full-size Decimator X and Decimator X G String use the newest patented Integration Release Window technology (US Patent 11,641,183) that keeps long sustained notes decaying naturally.
- vs. Deci-Mate Micro: The Deci-Mate Micro is a compact true-bypass pedal with a single input/output and no loop; the Decimator X G String is full-size, buffered bypass, and adds dedicated Guitar In/Out plus Dec In/Out loop jacks built on the newest X technology.
- vs. Deci-Mate G: The Deci-Mate G offers similar direct-guitar tracking via a compact 3.5mm TRS loop on ISP's earlier circuit; the Decimator X G String uses four full-size 1/4-inch jacks and the newer Integration Release Window technology, plus 1/8-inch link jacks for stereo setups.
- vs. Decimator X: The standard Decimator X has only one input and one output for simple single-channel use; the G String version adds a second pair of jacks (Guitar In/Out plus Dec In/Out) so it can track the guitar directly while separately noise-reducing an effects loop or feeding a stereo pedal chain.
Why guitarists choose this pedal
- Four 1/4-inch jacks (Guitar In, Guitar Out, Dec In, Dec Out) let it sit in front of the amp while still cleaning noise from an effects loop or downstream pedal chain
- Tracks the guitar signal directly, so the noise floor doesn't shift when you change gain pedals or preamp settings
- LINK IN/OUT lets it pair with a standard Decimator X to build a true stereo noise-reduction system
- Same newest-generation Integration Release Window technology as the standard Decimator X
Controls and switches
- Threshold knob (marked -70 to +10 dB) – adjust clockwise with no signal present until the noise floor is inaudible; readjust with guitar volume maxed
Power and pedalboard compatibility
- Voltage: 9V DC
- Current draw: 35 mA
- Polarity: center negative (tip negative), standard 5.5 × 2.1 mm barrel
- Battery: yes – 9V battery accepted via internal compartment (thumbscrew access), or external 9VDC adapter rated at least 100mA
- Bypass: Buffered bypass
- Signal-chain placement: guitar → Guitar IN; Guitar OUT → gain pedals / amp input; amp effects-loop send → DEC IN, return → DEC OUT. Delay and reverb sit after the DEC OUT so their tails stay natural.
Technical specifications
| Model / SKU | ISP Technologies Decimator X G String Noise Reduction Pedal · SKU 898182001607 |
|---|---|
| Barcode (GTIN) | 898182001607 |
| ASIN | B0D8WR9GGW |
| Topology / Technology | Patented Decimator X Technology (US Patent 11,641,183) with Integration Release Window and linearized Time Vector Processing, applied to a 4-jack 'G String' topology that tracks the guitar's direct output for constant noise-floor performance regardless of downstream gain |
| Bypass | Buffered bypass |
| Power | 9V DC |
| Current draw | 35 mA |
| Battery | yes – 9V battery accepted via internal compartment (thumbscrew access), or external 9VDC adapter rated at least 100mA |
| Connections | 1/4-inch Guitar IN, 1/4-inch Guitar OUT, 1/4-inch DEC IN (loop send), 1/4-inch DEC OUT (loop return), 1/8-inch (3.5mm) LINK IN, 1/8-inch (3.5mm) LINK OUT, 9VDC adapter jack |
| Enclosure (L × W × H) | 12.7 x 6.9 x 5.8 cm |
| Warranty | 3-year warranty on parts and workmanship from date of purchase; must register online at isptechnologies.com to activate |
Frequently asked questions
How do I hook up the four jacks?
Connect your guitar to Guitar IN, run Guitar OUT to your amp input, connect DEC IN to your amp's effects loop send, and DEC OUT to the loop return; put gain pedals in front of the amp/DEC IN and delay/reverb after DEC OUT to avoid cutting off trails.
Why choose the G String version over the standard Decimator X?
The G String version is required when you need separate guitar and loop connections — for example, to track the guitar directly while also noise-reducing pedals placed in an amp's series effects loop, or to feed a stereo pedal chain from a single guitar input.
Can I use two Decimator X G String pedals for true stereo?
Yes — the manual describes linking a Decimator X G String with a standard Decimator X (or a second G String) via the 1/8-inch LINK cable to build a true stereo Decimator system, such as feeding an ISP STEALTH power amplifier in stereo.
Is this pedal battery powered?
Yes, it accepts a 9V battery or an external 9VDC adapter rated at least 100mA, center/tip negative.
Is the Decimator X G String true bypass?
No, like the standard Decimator X it uses buffered bypass.