Is overdrive, chorus, delay, etc built in?

Yes, there are 40 effects built-in including Noise Gate, Overdrive, Distortion, Delay, Modulation (Chorus, Flanger, Phaser, Tremolo..etc.) and Reverb. You can adjust effects using the control knobs on the amp, or take a deep dive into all of these features and edit your tones in the Spark app that comes free with the Spark amp.

Have you replaced the grounding issues with the power supply not being grounded? I read it causes hum issues

Hum issues can come from many places and 3 prong plug doesn't always get it. Did you try a ground lift? The electrical circuitry in your house (or whatever structure you're in) can cause hum. Florescent lights, f'rinstance. Do you have single coil pickups? find out. That's why Gibson made the "Humbucker". So many issues that wont be resolved with 3 prong plug. I'm looking for a battery powered amp like this. If it was batt powered (self contained) I would buy one and hum wouldn't be an issue (except for maybe single coils under flourescent lamps). Also, your amp may hum if don't know the lyrics.

Is it for bass guitar?

Spark is an amp for bass, electric and acoustic guitar. There are 10,000+ tones and auto chords.

Are the presets built in or do you have to buy them?

Yes, there are factory presets built into the amp itself, plus lots more you can load in from the accompanying free Spark app. You also can find thousands more presets and tones free of charge when you log into Spark ToneCloud.

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Spark Pearl Guitar Amplifier Electric, Bass and Acoustic Guitar 40-Watt Combo Practice Amp with Spark Mobile App (Pearl)

Product ID: 422804294

Details

Brand
Positive Grid
Color
Pearl
Compatible Devices
Guitar
Material
Stainless
Output Wattage
40 Watts

🎸40W tube amp power

📱App-driven smart jamming

🔊Custom speakers + Bluetooth

$802.73

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Description

🎶 Spark your sound, ignite your jam sessions!

JAM SMARTER NOT HARDER - AI-powered Spark app learns your style and generates real-time bass & drum backing tracks for instant jamming sessions.
ENDLESS TONE POSSIBILITIES - Access 50,000+ amp and FX presets on ToneCloud, featuring ultra-realistic virtual tube amps and effects to craft your signature sound.
SEAMLESS MUSIC INTEGRATION - Import songs from Spotify, Apple Music, or YouTube and watch chords auto-display in real time—practice and play along with your favorite hits effortlessly.
SLEEK PEARL FINISH MEETS POWER - 40-watt tube amplifier with custom-designed speakers and tuned bass-reflex port delivers rich, dynamic sound in a stylish, compact design.
MORE THAN AN AMP A SOCIAL HUB - Bluetooth streaming capability transforms your amp into a centerpiece for any gathering, blending music practice with social vibes.

The Positive Grid Spark Pearl is a 40-watt tube combo amplifier designed for electric, bass, and acoustic guitars. It features intelligent AI-driven jamming via the Spark mobile app, real-time chord display from popular streaming services, and access to over 50,000 amp and effects presets on ToneCloud. With custom speakers, Bluetooth connectivity, and a sleek pearl finish, it’s perfect for practice, performance, and social music experiences.

Specifications

ASIN	B09VBZM2L6
Amplifier Type	Tube
Best Sellers Rank	#18,852 in Musical Instruments ( See Top 100 in Musical Instruments ) #70 in Combo Guitar Amplifiers
Brand	Positive Grid
Color	Pearl
Compatible Devices	Guitar
Connector Type	6.35mm Jack, USB
Customer Reviews	4.7 4.7 out of 5 stars (8,635)
Enclosure Material	Stainless Steel
Global Trade Identification Number	00855316004552
Item Dimensions D x W x H	13.78"D x 7.48"W x 7.08"H
Item Weight	15.6 Pounds
Manufacturer	Positive Grid
Mfr Part Number	855316004552
Model Name	Spark
Model Number	855316004552
Number of Bands	3
Output Channel Quantity	1
Output Wattage	40 Watts
Power Source	Corded Electric
Speaker Size	1 Centimeters
UPC	855316004552
Unit Count	1.0 Count
Warranty Description	1 Year Warranty

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$802.73

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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