--- product_id: 50235096 title: "Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black" brand: "roth audio" price: "AR$488211" currency: ARS in_stock: false reviews_count: 8 url: https://www.desertcart.com.ar/products/50235096-roth-audio-oli-kh30-8-inch-active-sub-woofer-rear store_origin: AR region: Argentina --- # 8-inch woven fibre driver Banana plug speaker terminals Rear volume & crossover controls Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black **Brand:** roth audio **Price:** AR$488211 **Availability:** ❌ Out of Stock ## Summary > 🎶 Feel the bass, own the room. ## Quick Answers - **What is this?** Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black by roth audio - **How much does it cost?** AR$488211 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/50235096-roth-audio-oli-kh30-8-inch-active-sub-woofer-rear) ## Best For - roth audio enthusiasts ## Why This Product - Trusted roth audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Secure Connectivity:** Banana plug speaker terminals provide reliable, easy-to-install connections for hassle-free setup. - • **Deep, Controlled Bass:** 8-inch forward-firing woven fibre driver delivers powerful, precise low frequencies that fill your space with immersive sound. - • **Phase Control Precision:** Phase adjustment ensures seamless integration with your existing speakers for crystal-clear, distortion-free sound. - • **Sleek, Professional Design:** Matte black finish with rear controls keeps your setup clean and stylish, perfect for modern workspaces or home studios. - • **Customizable Audio Experience:** Rear panel volume and crossover controls let you tailor bass output perfectly to your room and setup. ## Overview The OLI KH30 is an 8-inch active subwoofer featuring a woven fibre driver for powerful, controlled bass. It offers rear panel volume, crossover, and phase controls for precise sound customization, plus banana plug terminals for secure connections—all housed in a sleek black design ideal for professional and home audio setups. ## Description The OLi Series subwoofer will amaze with its thunderous performance, stunning cosmetics, and remarkable ease of use. The OLi Subwoofer features an 8" forward firing active woven fibre driver resulting in unbelievably powerful yet controlled bass output. Volume and Crossover controls are located on the rear panel, along with Phase settings, (0 - 180), RCA jack audio inputs and banana plug speaker terminals. The large heat sink ensures reliable operation. Review: Excellent value sub - I wanted to upgrade my old AIWA subwoofer and have been searching for a while when I came across this one. I needed connections that would allow me to feed the speaker outputs directly into it from my vintage amplifier and then use the subs speaker outputs to connect to the speakers. None of my old amps have a dedicated subwoofer output so this was essential. Well this one has it all and allowed the connections to be made, as described. When searching, the nearest retailer price I could find was £200, desertcart was £114 including prime delivery! On arrival it was very well packaged so no damage etc. Out of the box, connected up and works great. Independent frequency crossover, phase and volume controls allow fine adjustments to get it just right and matched with my Wharfedale Diamond 9.1’s. Placement is not critical with a sub, in the same way that stereo speakers have to be. Mine is sited off to the right of my listening position and works just fine. Speaker grill is magnetically attached to the cabinet and is very easy to attach or remove, it looks good with grill on or off IMO. All controls are at the rear and one set up, can just be left alone. I leave mine switched on permanently, connected to an audio timer along with the rest of the system. Using the auto switch on function means when power is switched on,the sub springs into life without the need for any manual input, it also switches off when power is disconnected, I like that. It is supplied with very nice speaker cones for the base which just screw in and have a slight range of adjustment if your floors are uneven. It comes with a separate IEC plug lead which means you can extend the mains lead if needed or upgrade the lead to a higher quality if you want. A separate purchase required for an upgraded lead obviously. Good quality 4mm banana plug binding posts for speaker inputs/outputs which are bare wire/spade/banana plug compatible is a nice feature. Sound is great, in theory, you should not be able to hear it, seamlessly integrating into the overall sound, with the range of adjustments on the sub, this is easily achieved. Just check out the lower frequency range of your speakers, then set the crossover on the sub slightly higher than that point. The sub then takes over the bass taking it to a lower level, fine tuning from there will get it just right! Quality fit, finish and performance are excellent, a British audio company too, what’s not to like! Highly recommended especially at this lower price, providing great value for money. Review: I recommend this totally..... - Exudes quality and build, and fantastic value for what these cost at under £240. Lovely controlled sound that does not lose it like my old unit did, that this is replacing. I always felt with my old unit that it needed to be lower in the sound setup, being forced to keep it at a minimum volume. Not this one...it's a great replacement and the bass is tight, controlled and rich sounding. It turns off after 10 mins or so, and is a good size, very neat footprint, and nice magnetic grill that just snaps into place. Good controls at the back too. I recommend this totally. ## Features - The OLi Subwoofer features an 8" forward firing active woven fibre driver resulting in unbelievably powerful yet controlled bass output. - Volume and Crossover controls are located on the rear panel - Phase Control - banana plug speaker terminals ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00G3C8H54 | | Antenna Location | For surround sound systems | | Audio Driver Type | Dynamic Driver | | Box Contents | banana plug speaker terminals | | Brand | Roth Audio | | Brand Name | Roth Audio | | Colour | Black | | Compatible Devices | Personal Computer | | Connectivity technology | RCA | | Control Method | Voice | | Customer Package Type | Standard Packaging | | Customer Reviews | 4.6 out of 5 stars 20 Reviews | | MP3 player | No | | Manufacturer | Roth Audio | | Maximum Speaker Output Power (in watts) | 200 Watts | | Model Name | OLI KH30 | | Model Number | OLIKH30/BK | | Model name | OLI KH30 | | Mounting Type | Floor Standing | | Mounting type | Floor Standing | | Network Connectivity Technology | RCA | | Number of Items | 1 | | Power Source | Corded Electric | | Speaker Type | Subwoofer | | Speaker maximum output power | 200 Watts | | Speaker type | Subwoofer | | Subwoofer Connectivity Technology | Wired | | Subwoofer Speaker Diameter | 8 Inches | | Tweeter Diameter | 1 Inches | | Woofer Driver Diameter | 8 Inches | ## Product Details - **Brand:** Roth Audio - **Colour:** Black - **Compatible devices:** Personal Computer - **Connectivity technology:** RCA - **Model name:** kh30 - **Mounting type:** Tabletop - **Recommended uses for product:** For televisions, For music players, For gaming consoles - **Speaker maximum output power:** 200 Watts - **Speaker type:** Subwoofer - **Subwoofer diameter:** 8 Inches ## Images ![Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black - Image 1](https://m.media-amazon.com/images/I/91B9VlkvSGL.jpg) ![Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black - Image 2](https://m.media-amazon.com/images/I/81myxCCgN6L.jpg) ![Roth Audio OLI KH30 8 inch Active Sub Woofer with Rear Controls and Ports - Black - Image 3](https://m.media-amazon.com/images/I/71SvPkdxXtL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent value sub *by B***A on 6 October 2020* I wanted to upgrade my old AIWA subwoofer and have been searching for a while when I came across this one. I needed connections that would allow me to feed the speaker outputs directly into it from my vintage amplifier and then use the subs speaker outputs to connect to the speakers. None of my old amps have a dedicated subwoofer output so this was essential. Well this one has it all and allowed the connections to be made, as described. When searching, the nearest retailer price I could find was £200, Amazon was £114 including prime delivery! On arrival it was very well packaged so no damage etc. Out of the box, connected up and works great. Independent frequency crossover, phase and volume controls allow fine adjustments to get it just right and matched with my Wharfedale Diamond 9.1’s. Placement is not critical with a sub, in the same way that stereo speakers have to be. Mine is sited off to the right of my listening position and works just fine. Speaker grill is magnetically attached to the cabinet and is very easy to attach or remove, it looks good with grill on or off IMO. All controls are at the rear and one set up, can just be left alone. I leave mine switched on permanently, connected to an audio timer along with the rest of the system. Using the auto switch on function means when power is switched on,the sub springs into life without the need for any manual input, it also switches off when power is disconnected, I like that. It is supplied with very nice speaker cones for the base which just screw in and have a slight range of adjustment if your floors are uneven. It comes with a separate IEC plug lead which means you can extend the mains lead if needed or upgrade the lead to a higher quality if you want. A separate purchase required for an upgraded lead obviously. Good quality 4mm banana plug binding posts for speaker inputs/outputs which are bare wire/spade/banana plug compatible is a nice feature. Sound is great, in theory, you should not be able to hear it, seamlessly integrating into the overall sound, with the range of adjustments on the sub, this is easily achieved. Just check out the lower frequency range of your speakers, then set the crossover on the sub slightly higher than that point. The sub then takes over the bass taking it to a lower level, fine tuning from there will get it just right! Quality fit, finish and performance are excellent, a British audio company too, what’s not to like! Highly recommended especially at this lower price, providing great value for money. ### ⭐⭐⭐⭐⭐ I recommend this totally..... *by G***E on 8 August 2017* Exudes quality and build, and fantastic value for what these cost at under £240. Lovely controlled sound that does not lose it like my old unit did, that this is replacing. I always felt with my old unit that it needed to be lower in the sound setup, being forced to keep it at a minimum volume. Not this one...it's a great replacement and the bass is tight, controlled and rich sounding. It turns off after 10 mins or so, and is a good size, very neat footprint, and nice magnetic grill that just snaps into place. Good controls at the back too. I recommend this totally. ### ⭐⭐⭐⭐ Perfect punch but not thunderous bass *by F***0 on 4 July 2020* Excellent build quality from Roth. Only used the amp for a day so will take some bedding I - but generally very happy with the performance. Musically it's perfect and picks up where my KEF 2000's stop. Film wise it was excellent and very clear playing The Martian,but didn't produve room shaking sub bass by any means,more punchy. So in summary,if you're looking for sofa shaking thunderous bass for all out action movirs....I'd look elsewhere. If you're looking for sonic clarity and a perfect musical accompaniment to your system, I'd highly recommended the Roth. --- ## 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.com.ar/products/50235096-roth-audio-oli-kh30-8-inch-active-sub-woofer-rear](https://www.desertcart.com.ar/products/50235096-roth-audio-oli-kh30-8-inch-active-sub-woofer-rear) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-15*