--- product_id: 2028901 title: "BKB-40 Black Beauties Coated Steel Medium Bass Strings" brand: "dr strings" price: "฿3195" currency: THB in_stock: true reviews_count: 8 category: "Dr Strings" url: https://www.desertcart.co.th/products/2028901-bkb-40-black-beauties-coated-steel-medium-bass-strings store_origin: TH region: Thailand --- # Light gauge 40-100 for versatile play K3 ultra-hard black coating Corrosion-resistant stainless steel wrap BKB-40 Black Beauties Coated Steel Medium Bass Strings **Brand:** dr strings **Price:** ฿3195 **Availability:** ✅ In Stock ## Summary > 🖤 Elevate your bass game with strings as bold as your sound. ## Quick Answers - **What is this?** BKB-40 Black Beauties Coated Steel Medium Bass Strings by dr strings - **How much does it cost?** ฿3195 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/2028901-bkb-40-black-beauties-coated-steel-medium-bass-strings) ## Best For - dr strings enthusiasts ## Why This Product - Trusted dr strings brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros Worldwide:** DR Strings’ patented technology delivers consistent, high-performance strings that serious bassists swear by. - • **Corrosion-Resistant Powerhouse:** Engineered to resist sweat and rust, keeping your strings fresh through endless gigs and studio sessions. - • **Sleek & Durable Black K3 Coating:** Unmatched longevity with a signature jet-black finish that turns heads and outlasts the competition. - • **Crystal-Clear Tone & Articulation:** Experience rich, vibrant sound with fewer unwanted overtones—perfect for every genre from jazz to rock. - • **Smooth Playability, Less Finger Noise:** Ultra-slick coating ensures effortless finger movement and a comfortable feel for all skill levels. ## Overview DR Strings Black Beauties 4-string bass set features patented K3 ultra-hard black coating for exceptional durability and tonal brightness. With corrosion-resistant stainless steel wrap and light 40-100 gauge, these strings deliver clear, rich tones and smooth playability, trusted by professional bassists worldwide. ## Description Product Description Black Beauties bass guitar strings with K3 Technology. The K3 coating is the first coating that players report, "sound as good or better than uncoated strings." DR's remarkable and proprietary K3 Technology coating is the first coating that makes no apologies and no excuses for not delivering sound equal to uncoated strings. Players tell us that these strings have more volume, less unwanted overtones, greater clarity and articulation than standard, uncoated strings. Yet, they provide the same protection due to corrosion and perspiration as well as increased tone life that coated strings are known for. From the Manufacturer BLACK BEAUTIES™ Black Colored Bass Strings aren’t just about the sleek and sophisticated look. They feature a round core wire and a stainless-steel wrap wire to maintain brightness and feel. All strings in the set are coated with a jet-black version of DR’s K3™ ultra-hard coating, delivering longevity, more projection, fewer unwanted overtones, and outstanding clarity and articulation. Review: Best sounding, playing strings I have found for my Rickenbacker 4003! - I own 10 bass guitars and use a variety of DR string models on all of them. One of my favorite DR sets is their Sunbeams, which I use on all of my short scale basses. I was looking for something with a coating to try on my 4003 and had read good things about these Black Beauty strings which I discovered are basically coated Sunbeams, just like the other DR coated strings like the Red Devils! Prior to swtitching over to these I had been running with DR Lo-Riders on my 4003 which I also use on my Fender Jazz Basses. Contrary to the nice top end bite I get from these on my 62 and 73 Jazz, I just wasn't getting the classic RIC tone I wanted out of the 4003 with LO-Riders installed, so this is why I decided to give these a try. I had been running with DR Red Devils on my Fender Jaguar and my Gretch DuoJet for a long time so I already knew that these coated DRs have a great tone, reduced fret clatter and easy on the fingers to boot, so I already knew there was a good chance these Black Beauties were going to deliver what I was looking for. After installing them on the 4003 and adjusting the truss rods to account for the reduced string tension compared to the Lo-Riders I was thrilled with the results! These strings have proven to be the perfect match for the Rickenbacker! I am getting that classic 4001/4003 tone in spades and with the added bonus of less string noise when sliding, and much reduced fret clank when playing fast runs up and down the neck. Because these are coated, you need to take care when installing them that you don't just yank the strings through the bridge as you install them, otherwise you risk scraping off the micro-thin coating. When installed properly, you should not have to worry about the coating coming off with normal use. I use a pick most of the time and have not seen any evidence of the coating coming off where the pick contacts the strings, or in any of the most commonly played sections of the fingerboard. Have to take these 1-2 Star reviews on here with a grain of salt based on my own personal experience with these... I have read a few bad reviews on here complaining about the coating coming off or the strings being dead out of the box. I can't comment on the dead string issue, but in terms of the coating coming off, it sure sounds to me like these folks failed to read the instructions about using care during installation. If you just pull these quickly through the bridge holes like normal strings without regard for the coating, there is a very high probability that you will fracture the coating which will eventually result in the coating cracking off the string over time. I have DR coated strings on 6 of my 10 guitars and none of them have ever had a problem with the coating flaking off or the strings going dead prematurely. Two of my guitars have had a set of Red Devils on them for over 14 months and they still sound great even after hundreds of hours in the studio. In conclusion, I have nothing but high praise for these strings and recommend them for anyone looking for a high quality coated string with great tone and feel. The black strings also look really cool against the black JetGlo finish of my 4003! If you are looking for the same string in a different color, check out the Red Devils or the Cool Blue versions! Same string, just a different color coating. Review: Great strings! (and style) - Insanely good strings, great feel on the fingers, and the sound is exactly what i needed, be aware that these are coated so you won't be grounding your bass when touching the strings! (If you have hum on the bass) Normal roundwounds without coating made my fingers bleed while playing songs with a lot of slides, this one never made that happends, pretty happy with these strings, would recommend! ## Features - .040-.100 4-string Bass Strings with Thin Black Coating - Light (40 - 100) - 60 - 80 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001AWWN9I | | Best Sellers Rank | #617 in Musical Instruments ( See Top 100 in Musical Instruments ) #4 in Bass Guitar Strings | | Body Material Type | Stainless Steel | | Brand | DR Strings | | Brand Name | DR Strings | | Coating Description | coated | | Color | Black | | Customer Reviews | 4.7 out of 5 stars 5,331 Reviews | | Finish Type | Uncoated | | Global Trade Identification Number | 00600781003032 | | Included Components | 4-string set of bass guitar strings | | Instrument | Bass Guitar | | Item Type Name | BLACK BEAUTIES - Black Coated Steel 4-string Bass Guitar Strings, 40-100 Gauge, Round Core | | Item Weight | 0.24 Pounds | | Manufacturer | DR Strings | | Manufacturer Part Number | BKB-40 | | Material Type | Steel | | Model Name | BLACK BEAUTIES™ | | Model Number | BKB-40 | | Recommended Uses For Product | Bass guitar | | Set Name | Light, 40-100 (4-String) | | String Gauge | Light | | String Material Type | Coated | | UPC | 600781003032 678358930777 | | Warranty Description | Warrantied against manufacturing defects. | ## Product Details - **Brand:** DR Strings - **String Gauge:** Light - **Color:** Black - **Instrument:** Bass Guitar - **String Material Type:** Coated ## Images ![BKB-40 Black Beauties Coated Steel Medium Bass Strings - Image 1](https://m.media-amazon.com/images/I/81M2CcqYBiL.jpg) ## Available Options This product comes in different **Set** options. ## Questions & Answers **Q: Is the coating smooth to enable glissando on a fretless bass?** A: Killer on a fretless. **Q: Are these for short or long scale bass guitar ?** A: Long scale. Do a search for short scale strings. **Q: Does the coating dampen the effects of pinch harmonics? I use harmonics a lot and don't want to lessen that ability.** A: Not at all. The coating is sorta like when aluminum is anodized. Not like other strings with actual coatings on them. I used them on my Roscoe 5 for several years and now on my Spector NS2 for the last 5 years. DR makes the best strings. The feel of these is very similar to the Sunbeams. **Q: Have you actually ever played a guitar? How can you sell such a nasty product? How can you sleep at night?** A: I play the bass, I've tried a different set of DR coated strings. They're not my thing, but other players want the benefits that coating provides them. Different strokes Kirin. Check out some of the non-coated strings I do carry. Thanks. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best sounding, playing strings I have found for my Rickenbacker 4003! *by T***T on December 5, 2013* I own 10 bass guitars and use a variety of DR string models on all of them. One of my favorite DR sets is their Sunbeams, which I use on all of my short scale basses. I was looking for something with a coating to try on my 4003 and had read good things about these Black Beauty strings which I discovered are basically coated Sunbeams, just like the other DR coated strings like the Red Devils! Prior to swtitching over to these I had been running with DR Lo-Riders on my 4003 which I also use on my Fender Jazz Basses. Contrary to the nice top end bite I get from these on my 62 and 73 Jazz, I just wasn't getting the classic RIC tone I wanted out of the 4003 with LO-Riders installed, so this is why I decided to give these a try. I had been running with DR Red Devils on my Fender Jaguar and my Gretch DuoJet for a long time so I already knew that these coated DRs have a great tone, reduced fret clatter and easy on the fingers to boot, so I already knew there was a good chance these Black Beauties were going to deliver what I was looking for. After installing them on the 4003 and adjusting the truss rods to account for the reduced string tension compared to the Lo-Riders I was thrilled with the results! These strings have proven to be the perfect match for the Rickenbacker! I am getting that classic 4001/4003 tone in spades and with the added bonus of less string noise when sliding, and much reduced fret clank when playing fast runs up and down the neck. Because these are coated, you need to take care when installing them that you don't just yank the strings through the bridge as you install them, otherwise you risk scraping off the micro-thin coating. When installed properly, you should not have to worry about the coating coming off with normal use. I use a pick most of the time and have not seen any evidence of the coating coming off where the pick contacts the strings, or in any of the most commonly played sections of the fingerboard. Have to take these 1-2 Star reviews on here with a grain of salt based on my own personal experience with these... I have read a few bad reviews on here complaining about the coating coming off or the strings being dead out of the box. I can't comment on the dead string issue, but in terms of the coating coming off, it sure sounds to me like these folks failed to read the instructions about using care during installation. If you just pull these quickly through the bridge holes like normal strings without regard for the coating, there is a very high probability that you will fracture the coating which will eventually result in the coating cracking off the string over time. I have DR coated strings on 6 of my 10 guitars and none of them have ever had a problem with the coating flaking off or the strings going dead prematurely. Two of my guitars have had a set of Red Devils on them for over 14 months and they still sound great even after hundreds of hours in the studio. In conclusion, I have nothing but high praise for these strings and recommend them for anyone looking for a high quality coated string with great tone and feel. The black strings also look really cool against the black JetGlo finish of my 4003! If you are looking for the same string in a different color, check out the Red Devils or the Cool Blue versions! Same string, just a different color coating. ### ⭐⭐⭐⭐⭐ Great strings! (and style) *by M***A on January 14, 2026* Insanely good strings, great feel on the fingers, and the sound is exactly what i needed, be aware that these are coated so you won't be grounding your bass when touching the strings! (If you have hum on the bass) Normal roundwounds without coating made my fingers bleed while playing songs with a lot of slides, this one never made that happends, pretty happy with these strings, would recommend! ### ⭐⭐⭐⭐⭐ Recommend *by M***R on March 3, 2026* Sound good and look great. Easy install and they hold a tune very well. ## Frequently Bought Together - DR Strings BLACK BEAUTIES Bass Guitar Strings (BKB-40) - DR Strings HI-DEF NEON Bass Guitar Strings (NGB-40) - DR Strings HI-DEF NEON-White Silver Nickel Plated 4 Bass Guitar Strings, 45-105, Round Core (NWB-45) --- ## 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.co.th/products/2028901-bkb-40-black-beauties-coated-steel-medium-bass-strings](https://www.desertcart.co.th/products/2028901-bkb-40-black-beauties-coated-steel-medium-bass-strings) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-29*