--- product_id: 550342388 title: "50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass" brand: "joyo" price: "256157CFA" currency: XOF in_stock: true reviews_count: 13 category: "Joyo" url: https://www.desertcart.sn/products/550342388-50w-bass-amp-head-hybrid-tube-preamp-with-12ax7-compressor store_origin: SN region: Senegal --- # Bluetooth streaming 50W RMS power output 3-band EQ + compressor 50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass **Brand:** joyo **Price:** 256157CFA **Availability:** ✅ In Stock ## Summary > 🎸 Own the stage and your sound with BADASS bass power! ## Quick Answers - **What is this?** 50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass by joyo - **How much does it cost?** 256157CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/550342388-50w-bass-amp-head-hybrid-tube-preamp-with-12ax7-compressor) ## Best For - joyo enthusiasts ## Why This Product - Trusted joyo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Tube-Driven Warmth:** Genuine 12AX7 preamp tube delivers rich, punchy bass tones with authentic harmonic depth. - • **Compact & Road-Ready:** Lightweight metal chassis built tough for gigs, studios, and home setups—carry your badass tone everywhere. - • **Precision Sound Shaping:** Versatile 3-band EQ and onboard compressor let you sculpt your perfect bass sound effortlessly. - • **Practice Anywhere, Anytime:** Bluetooth streaming plus silent headphone output for late-night sessions and on-the-go jamming. - • **Seamless Effects Integration:** Dedicated FX loop for easy connection of pedals—expand your sonic palette without limits. ## Overview The JOYO BADASS is a 50W hybrid tube bass amp head featuring a genuine 12AX7 preamp tube for warm, punchy tones. It includes a 3-band EQ, compressor, FX loop, Bluetooth streaming, and a silent headphone output, making it perfect for practice, home studios, and small gigs. Compact and durable, it requires an external speaker cabinet and comes with footswitch and cables for versatile performance. ## Description Buy JOYO 50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass: Heads - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Killer tube preamp - I use this as preamp and it's awesome. It gives me the tube gain sound that I'm going for. It's only 50 watts which isn't much for bass, however if you run it as a preamp into the effects loop of a solid state amp it works great. Review: Great Practice Amp - This little fellow is not going to work for any gig anywhere, but it is awesome for practicing. The Bluetooth feature allows easy play along, and the tube preamp is killer. ## Features - IMPORTANT – THIS IS AN AMP HEAD, NOT A COMBO AMP: The BADASS is a bass amplifier head only. It requires an external speaker cabinet (4Ω or higher, sold separately) to produce sound. Perfect for beginners, hobbyists, and gigging bass players. For silent practice, use headphone output with built-in cab simulation— speaker cab is automatically muted. Please ensure you have a compatible bass cab before purchasing. - WARM 12AX7 TUBE PREAMP TONE: Powered by a genuine 12AX7 preamp tube, BADASS delivers warm, punchy bass tone with rich harmonics. 50W RMS output at 4Ω (25W at 8Ω) drives a wide range of bass cabinets (1×8, 2×10, 4×10, etc.). Suitable for rock, blues, pop, funk, and modern bass playing with the distinct character of a tube-driven amp. Tip: For full 50W power, use a 4Ω cabinet. - BUILT-IN STUDIO TOOLS – COMPRESSOR, 3-BAND EQ & FX LOOP: Shape sound with a versatile 3-band EQ (Low, Mid, High) and an onboard compressor that can be engaged/disengaged via the included footswitch. The dedicated FX LOOP (Send/Return) allows seamless integration of modulation, delay, reverb, and other effects pedals. - BLUETOOTH STREAMING & SILENT PRACTICE: Wirelessly stream backing tracks, songs, or practice material via Bluetooth. The headphone output features immersive, high-quality silent practice — perfect for apartment living, late-night sessions, and personal monitoring without disturbing others. - PORTABLE, STAGE-READY & BUILT TO LAST: Compact and lightweight (1.32kg / 2.9lbs) with dimensions 163×110×140mm. Solid metal construction, built for the road. Includes footswitch, power adapter, and audio cable. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CC4NVNZX | | Amplifier Type | Tube,Hybrid | | Best Sellers Rank | #54,481 in Musical Instruments ( See Top 100 in Musical Instruments ) #11 in Bass Guitar Amplifier Heads | | Brand | JOYO | | Built-In Media | 12AX7 Preamp Tube, Channel Connecting Cable, Footswitch, Footswitch Connecting Cable, Speaker Cable | | Color | Dark Green | | Compatible Devices | Double Bass, Effects Pedal, monitor headset | | Connector Type | 3.5mm Jack, 6.35mm Jack | | Customer Reviews | 4.0 out of 5 stars 45 Reviews | | Enclosure Material | Metal | | Item Dimensions D x W x H | 4.33"D x 5.51"W x 6.3"H | | Item Weight | 1.18 kg | | Manufacturer | JOYO Technology | | Material | Metal | | Mfr Part Number | 041-BADAS-0011 | | Model Name | BADASS | | Model Number | Manufacturer-BADASS-0012 | | Number of Bands | 3 | | Number of Items | 1 | | Number of Packs | 1 | | Output Channel Quantity | 1 | | Output Wattage | 50 watts | | Power Source | Corded Electric | | Product Dimensions | 4.33"D x 5.51"W x 6.3"H | | Sound Profile | Warm, punchy, rich harmonics | | Speaker Size | 4 inches | | Warranty Description | We promised to provide the one year after-sale service, if Claimed the item was not as described when that wasn't true, Returned a completely different item or an empty box, Returned the item with missing parts, We will report to Amazon after checking the returns. | ## Product Details - **Brand:** JOYO - **Color:** Dark Green - **Compatible Devices:** Double Bass, Effects Pedal, monitor headset - **Material:** Metal - **Output Wattage:** 50 watts ## Images ![50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass - Image 1](https://m.media-amazon.com/images/I/61sR6QVEfSL.jpg) ![50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass - Image 2](https://m.media-amazon.com/images/I/61a-PISobGL.jpg) ![50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass - Image 3](https://m.media-amazon.com/images/I/61ui7o4PKLL.jpg) ![50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass - Image 4](https://m.media-amazon.com/images/I/61UE-bHx3DL.jpg) ![50W Bass Amp Head Hybrid Tube Preamp with 12AX7, Compressor, 3-Band EQ, FX Loop, Bluetooth & Headphone Output for Bass Practice, Home Studio & Small Gig (Require External Speaker Cabinet) Badass - Image 5](https://m.media-amazon.com/images/I/61khVsSdLeL.jpg) ## Questions & Answers **Q: The bass amp head doesn't include a speaker, does it?** A: Yes, it has not include a cabinet/speaker. Badass is an amp head rather than combo amp, So it has no sound after receiving the parcel. We recommend that you can buy JOYO JMH-02 professional audio monitor headphones to listen. **Q: What are the features of Bass amp head?** A: The BADASS is a 50w powerful amp head for bass guitarist supporting bluetooth connectivity. It has gain and 3-band EQ knobs, footswitch, compressor, and FX loop function. **Q: How do I use a footswitch?** A: If you want to use the footswitch to control the compressor, please choose the toggle switch to "NORMAL", it may not work under "COMP" condition. **Q: What happens if I find a problem in using after receiving the product?** A: Welcome send message on Amazon via "Contact Seller" if you have any question of amp head before buying. We would provide customer with service after receiving. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Killer tube preamp *by T***D on June 27, 2026* I use this as preamp and it's awesome. It gives me the tube gain sound that I'm going for. It's only 50 watts which isn't much for bass, however if you run it as a preamp into the effects loop of a solid state amp it works great. ### ⭐⭐⭐⭐⭐ Great Practice Amp *by D***R on June 12, 2026* This little fellow is not going to work for any gig anywhere, but it is awesome for practicing. The Bluetooth feature allows easy play along, and the tube preamp is killer. ### ⭐⭐⭐ ON/OFF switch has stopped working !! *by P***L on May 5, 2026* I have owned this amp for (2) months. I love the sound ... BUT ... today the ON/OFF switch has stopped working. The unit cannot be turned OFF. An ON/OFF switch should last longer than 2 months! PS ... this is not an isolated issue. There are other Bassists experiencing this same problem. JOYO, if you're listening? Send me a new unit, a faulty on/off switch is dangerous !! PLEASE RSVP !! ## Frequently Bought Together - JOYO Bass Mini Amp Head 50 Watt Preamp Hybrid Tube Power Amplifier Head with 3 Band EQ & Bluetooth (No Sound,Need Extra Speaker) Badass - BOSS SD-1 SUPER OverDrive Effects Pedal for Guitar and Bass - Mild to Moderate Tube - like Overdrive Characteristics Ideal for Clean and Driven amps. BOSS 5-Year Warranty.,Yellow - JOYO Overdrive Distortion Pedal R Series High Gain OD Clean Boost to Dist for Electric Guitar Effect (Tauren R-01) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/550342388-50w-bass-amp-head-hybrid-tube-preamp-with-12ax7-compressor](https://www.desertcart.sn/products/550342388-50w-bass-amp-head-hybrid-tube-preamp-with-12ax7-compressor) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-10*