• 9 AMP MODELS × 2 CHANNELS = 18 TONES IN ONE PEDAL: The Preamp House delivers nine meticulously voiced preamp models—from vintage American clean (65Twin) to British crunch (JCM900), chimey Class A (AC30), boutique American drive (LONESTAR), modern high-gain (DUAL RECTIFIER, 5150Ⅲ, POWERBALL), and signature rock tones (TH200, BE100). Each amp features a dedicated Clean channel and Distortion channel, giving you 18 distinct tones ranging from pristine cleans to aggressive modern metal. Players describe it as an "excellent modeling preamp" that's "WAY exceeded my expectations."
• DUAL CHANNEL WITH SAVABLE PRESETS — ONE CLEAN, ONE DIRTY: The two footswitches let you toggle between a Clean channel and a Distortion channel for each amp model. Hold either footswitch to save your current settings—one clean preset and one distortion preset can be stored at a time. Note: The Preamp House stores one clean tone and one distortion tone globally; switching to a different amp model will load that model's last-saved settings. Plan your two presets around your most-used tones for seamless live switching.
• BUILT-IN IR CAB SIM, XLR OUT, FX LOOP & HEADPHONE OUTPUT: The integrated 4×12 impulse response cabinet simulation (Celestion-voiced) can be toggled to the XLR output, the 6.35mm output, or both—giving you a consistent, mix-ready tone for any setup. XLR balanced output with Ground Lift connects directly to PA systems or audio interfaces. The built-in FX Loop lets you place modulation, delay, and reverb effects after the preamp for proper signal routing. A 3.5mm headphone jack enables silent practice anytime.
• AMBIENT LED LIGHTING & ROAD-READY R SERIES DESIGN: The iconic ambient LED lights on the front and rear edges bring a professional, futuristic edge to your pedalboard. Choose from 3 modes (Sync, Always On, or Off) via a recessed switch on the underside. Encased in a rugged aluminum alloy chassis (130×110×50mm, 450g), the Preamp House features two sturdy metal footswitches and smooth, responsive knobs. Bypass mode is engaged by pressing both footswitches simultaneously.
• JOYO QUALITY & AFTER-SALES CONFIDENCE: Backed by JOYO's decade-plus reputation for crafting innovative, budget-friendly gear. Important: Powered by 9V DC adapter only (center negative, not included). Rated current: 400mA—this pedal requires high current and cannot run on a 9V battery. For the cleanest sound, use a regulated, isolated 9V power supply with at least 500mA output. Note: Ensure XLR phantom power is OFF on your mixer or interface before connecting—phantom power can damage the pedal. Should any issues arise, our dedicated support team is ready to assist through your Amazon order page.

JOYO PreAmp House Preamp Simulator Effect Pedal (R-15), directly provided by manufacturer of JOYO Technology, we will provide the best ever excellent A-S- Service, much better than any other distributors.

SOME TIPS:

* Before you test the pedal or before playing, make sure the guitar is fully connected with the pedal;

* More importantly, you need to make sure it meets the working current requirement of each single pedal.

* In order to make JOYO pedals work properly, avoiding unexpected noise caused by power supply, we recommend that you purchase a JOYO original power adapter, or choose other reliable brands.

• JOYO PreAmp House Preamp Simulator pedal of R series effect pedals delivery way more comprehensive tones and functions compared with JOYO'S other pedals. Regarding digital pedals, we've added IR cabinet simulation, drum machine+looper, digital delay+looper and dual modulation.
• Ambience LED light on the front and rear sides of the unit, can be set in one of two ways: You can either set the lights to be on all the time or it can come on when the pedal is engaged. The setting is via a sunken switch on the underside of it.

Ambience Control Switch:

• SYNC mode: the ambience LED light illumines when the footswitch is turned on, while the ambience LED light goes off when the foot switch is turned off.
• ALWAYS mode: the ambience light is red light.
• OFF mode: the ambience light is off.

Precautions:

1. Please do not dissemble or repair the pedal by yourself.
2. Please keep the manual and box for future reference.

Package Included:

• 1 x JOYO R-15 PreAmp House Preamp Simulator Effect Pedal
• 1 x User's Manual

(Power Supply Adapter is NOT included.)