that hits the price target theyve set and also sound terrible. Also, have you ever opened one up. We get this, well, a lot. BMW Z4 Full Speaker Upgrade DIY - BimmerTech Alpha One Speaker and Woofer Sound System 13K views 11 months ago How To Upgrade BimmerTech Premium Audio Amplifier & Install ASD Harness. But not only that; every speaker is engineered for the exact BMW in which its installed, right down to the smallest details. Crutchfield: Legendary Service. BMW Z4 Coupe (2006) Project Time: 2 hours Tab: $300 Talent Tools: Phillips screwdriver, hook tool Parts Required: Radio Performance Gain: Repair faulty amplifier Complementary Modification: Install aftermarket radio Most electrical components on BMW Z4 models require programming using an advanced BMW scan tool when replacing. If you're up for a BMW audio system and speakers upgrade, you're in the right place. Recycle parts, packaging and fluids when possible. Very true. *NOTE: Excludes 1996-1999 BMW 3 Series / M3 Convertible. Technical help when you already have the part: [emailprotected]. Upgrading the amp for the interior speakers helps in this regard, but interior speakers just aren't optimized to produce bass, and ultimately won't get you there -- but a sub system will. Sure, you can carry a small handheld speaker with you, but Deia takes her portable tunes more seriously. JavaScript is disabled. Will my BMW audio system be louder with the Stage One installed? Hi Guys Just want to say big thanks for squeezing my car in yesterday to fit subs and amp to my Subaru. are available for most vehicles. I didmupgrade the tweeters and midrange with eakers from Bavsound, they arw direct BMW speaker replacements. My place for electronics, great customer service, product expertise & lifetime technical support. See what Crutchfield has to offer Splice the harness's wires to your new radio's wires, then plug the other end of the harness into the connector you unplugged from the factory radio. Not wanting to change the head unit, the guys had solutions as to how to keep the car looking as factory as possible, and even asked me back in so they could check how the system has bedded in. Audison Bit Tuning. Our system then compares these measurements to the dimensions of a given receiver or speaker to determine which aftermarket products will fit in the factory location. For speakers, the key dimensions include more than just cone size. bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. They ARE relevant during the engineering phase, however. We use automated technology to connect you with an Advisor and to answer some common questions. If you have the DSP make sure it's tuned properly. Jason. The headunit has bluetooth, usb front/rear. What are the specs for the speakers used in the Stage One? They handle the sound well. At Crutchfield, we want to help you get the best sound possible in your ride and weve spent over four decades doing the research you need to get the stereo equipment thats right for your ride. by srhutch Sun Jun 10, 2018 7:48 pm, Post The amplifier amplifies the settings and distributes them over 10 channels. BMW Speaker Upgrade/Install | Z4 E85 86 2003-2008 | BAVSOUND Stage One Factory | Part 1 4,431 views Sep 18, 2019 Welcome back. Upgrade your BMW sound system with the world's first complete audio upgrade kit for BMW. Bringing the BMW community together. Installation was easy. The radio works great but the CD player skips often, usually when I hit a very tiny bump like the lane reflectors btwn lanes, and sometimes wont eject cds for days. - Nick at Pelican Parts. What we do is very different. Full speaker upgrade. Relevant option codes to look out for are S674A, S676A, S677A . So I have done my fair share of research and just cant seem to come up with a good answer. And they're all bundled into easy-to-add packages, You'll see a filtered lists of speakers that satisfy the depth, diameter, and height requirements of your vehicle's factory speaker openings. Old components are carefully removed, allowing you to have them replaced should the car ever be sold. Unfortunately we do Please email us with your question. Calls may be recorded for training and quality control purposes. I wouldn't be looking at upgrading to put in a top end system. When you buy your new car stereo from us, you can save up to $50 The result, sonically, is generally distortion or poor frequency response and transient response. by Magicarcher Wed Jan 02, 2019 8:09 pm, Powered by phpBB Forum Software phpBB Limited, Style we_universal created by INVENTEA & v12mike. No one will know you've upgraded your audio system except you. I've done plenty of research and I've been unsuccessful with what is compatible. Install, audition, and fully experience your new audio gear. So in the end, there really isn't a comparison. I'd rather just replace the whole BMW radio/CD unit so long as the speakers could be hooked up and used with a new receiver. I installed a kenwood kdc-bt958hd radio and what a difference. - Nick at Pelican Parts. contact us. JavaScript is disabled. Content on bimmerfest.com is generated by its users. numerous occasions by the. 9992 Views 4 Replies 3 Participants Last post by wildworth, Aug 29, 2013. Search: Search. We develop our own software for these products which are sold all over the world, to both trade customers and the public. 100% PLUG & PLAY INSTALLATION. I need to change my volume encoder. Antenna adapter: An antenna adapter connects the plug on your vehicle's antenna cable to the standard Motorola antenna input on your new radio. If you really want a serious improvement in bass response and overall sub-bass performance, youll need one of our Ghost Subwoofer Systems (http://bavsound.com/BMW-UnderseatSubwoofer-Upgrades/). 2003-2008 BMW E85 Z4 OEM AUDIO HIGH POWER LEAR STEREO AMPLIFIER 65126946727. For example if high, mid and low-range speakers / woofers are connected to the amplifier, the frequencies for those components are sent. Splice the module's wires to your new radio's wires, then plug the other end of the wiring harness into the connector you unplugged from the factory radio. As for the install, its a simple plug & play, fully reversible process that can be handled by any DIY enthusiast. Well, many don't realize that the vast majority of sonic energy in recorded music is in the lower frequencies (i.e. Part #: AFE-49-36339-B. Weve got your back. Anyway the flight to Amsterdam will be on a small regional jet and only takes an hour. Some limitations apply. Learn more and get studio-quality sound in your BMW! A red caution sign means that a product is larger than one or more dimensions of the factory mounting location and will not fit. $1789.10. by heyitsmatty Wed Jan 02, 2019 4:08 pm, Post Every time I use Crutchfield I am happy. 2005-2008 BMW Z4 E85 AM FM CD PLAYER RADIO STEREO RECEIVER UNIT OEM. We'll show you the speakers that are available for specific locations in your car. What's the return policy on the Stage One? Stage One BMW Speaker Upgrade for E85/E86 Z4 Roadster/Coupe, The Stage One is designed from the ground up to be easy to install. - Nick at Pelican Parts. So you can simply swap your original speakers for ours without changing anything else in your audio system, and the result is smooth, natural, yet unbelievably detailed reproduction of your favorite music. The installation fits well and looks like it belongs. You'll often see us note that a product "works with" your vehicle. Resurrecting an old thread here, but it appears that you have done exactly what I want to do! Z4. by bz4kev Wed Jun 13, 2018 12:05 pm, Post Includes step-by-step instructions, and is designed to be easy enough that anyone can install it in just a few hours. Rather than building your speakers for a specific price point, weve built them to sound great in your exact car and audio system configuration. Every single product we sell comes with a 100 Day In Car Trial. Works great. Free Delivery by Wed, Mar. Picture 1 of 7. You can try an independent shop, they might just replace it without the need for a quick test. XMAS DEALS ALL PRODUCTS 10% OFF + FREE SHIPPING To the best of my knowledge the speaker system will probably work without a . It will have them. Yes, if you are willing to rip everything out it's definitely possible. When we develop each Stage One, we first perform an analysis of the factory audio system in which the kit is being installed, and optimize it to help overcome the issues of the factory audio system, whether that's lack of midrange detail, harsh tweeters, poor imaging, or anything else. ICA SOUND PACK 3. I really appreciate your technical staff. In many cases, youll actually get the package for free! My stock audio in the Z4 sounds terrific to my ears, and I spent 19 years in the professional audio business. And last. Works great with iPhone. The power for all these speakers were from 2 Audison SRx amplifiers, an SRx4 4 channel amp for the speakers and an SR1D mono block amp for the 2 subs. Our speakers are always a direct fit in your BMW, with no modifications to your BMW required. 29. . I always choose to support you guys over a big box. So if you want your vehicle to become a Rolls Royce of sound our Alpha One Speaker Upgrade and Premium Audio System are your best bet. Yes and no. What an amazing upgrade. Crutchfield has and always will be the number one source for all electronic needs, there is no one better. It should not affect the radio or amplifier. of my 2005 installed a Kenwood KDC-X997 head unit. I went to them with a typically sub-standard BMW sound system, not really knowing how it should be improved and had a really friendly informal chat with Chris about the best route to take. However, none of our Stage One kits replace factory subwoofers, and they do not increase the amount of overall bass that is produced (despite the perceived improvement due to the factory speakers no longer distorting). Do we talk records in the halls of Crutchfield HQ? Please enter a valid 10-digit phone number. IMHO, short of forced induction and driver education, the best performance improvement for any stock BMW is a suspension upgrade. Just wanted to say a massive thankyou to you guys at Source, especially Chris and Paul who over the past few weeks have impressed me no end. No variable matching takes place in the HiFi amplifier. Very professional job by Chris will definately use you again and recomend to my customers/friends keep up the top work. I want to have it replaced, but the dealership says I must do a $166 diagnostic first. We engineered the Stage One speakers toproduce higher quality sound: a wider range and more balanced reproduction of the bass and treble you're currently missing. bmw-z4-audio-upgrade - Source Sounds Audio Upgrade to BMW Z4 2005 After listening to this car we realised why the customer wanted to upgrade the sound system. Remember your car may have been serviced before and parts replaced with different size fasteners used in the replacement. No, our Stage One Audio Upgrade is completely invisible within the car and totally reversible after installation. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The speakers and woofers I'm installing are AlphaOne by BimmerTech and I have been very impressed with the quality of the speakers, the sound they produce and even the packaging that they came in. Your BMWs factory audio does not include tweeters and the corresponding mounting It was to be done by a reputable car stereo installer. Steering wheel adapted im assuming to let the sound up/down on the wheel to work? Not entirely sure but this is the wrong forum for this question, you should repost on the airline forum. See our warranty policy for more details. I've read too many posts about other members who had an electrical gremlin pop up after bringing their car into the shop for an audio upgrade. Chris and Paul both spoke in some detail about what the issues were and how the problems could be addressed and I felt I was in safe, honest hands throughout the upgrade process. I have not opened one up to try to repair it. Good at IKEA projects? 3.2 out of 5 stars 2. Which upgrade is right for my BMW? If you no longer wish to receive the call, please click the button to cancel your request. Theyre designed for your exact model and application, and available exclusively through BAVSOUND. The Fora platform includes forum software by XenForo. This means you can enjoy higher listening volumes, or alternatively, slightly higher bass settings on your radio. It seems like something I'm probably not interested in. The unit may be failing. 2003 BMW Z4 E85 Roadster Stereo Radio Audio Amplifier 6936087 OEM. Even though many customers approach us with the idea that they would like an amplifier upgrade, the vast majority of those who install our Stage One are incredibly happy with the upgrade, and never think about an amp upgrade after it's installed. I connected the speaker outputs to the factory wiring so I can use the factory amp. The required settings are transferred via the K-bus and formed in the amplifier. For a better experience, please enable JavaScript in your browser before proceeding. power bluetooth adapter. BAVSOUND speakers are always correctly impedance and efficiency matched to work in perfect harmony with the rest of the factory audio system and ensuring the continued excellent performance of your factory amplifier and/or head unit. BMW Z4 speaker upgrade has been the best modifications I've done to the car so far!My BMW Z4 (E89) came with the HiFi system (S676A), with included the following speakers:5 x Midranges2 x Tweeters2 x Woofersbut you can also find the following sound systems on the E89 platform:Base System:4 x Midranges2 x TweetersTop HiFi (S677A):5 x Midranges3 x Tweeters2 x Woofers1 x DSP ProcessorChapters:00:00 Intro00:59 Closer Look at AlphaOne Kit04:05 The Before Sound System Test05:28 Replacing Dashboard Midrange Speaker07:12 Replacing Rear Panel Midrange Speakers08:25 Replacing Door Panel Midrange Speakers and Tweeters15:43 Replacing Rear Subwoofers20:52 Removing Woofers from Bass Box23:23 Re-assembly27:33 Final Listening Test______If you'd like to support what I do, please consider supporting the channel for just $1 a month: https://www.patreon.com/SimpleCarGuyhttps://www.instagram.com/simplecarguy/https://simplecarguy.com------------------------------Links are affiliated where possible.This means if you click on the link and purchase the product, I will earn a commission. Bottom line is fantastic sound and really improves my driving enjoyment experience. DESIGNEDTO FIT AND OPERATEJUST LIKE YOUR FACTORY SPEAKERS, ONLY BETTER. bass), and a subwoofer system that can accurately and powerfully reproduce those frequencies gives music its heft and impact when played back. This might be 50 watts RMS, 120 watts peak, for example, which means that the speaker can HANDLE a constant load of 50 watts, with higher peaks. You also have the option of swapping out used items, which will at times work with programming. This head unit will do everything except make me lunch. BMW Z4 Full Speaker Upgrade DIY - BimmerTech Alpha One Speaker and Woofer Sound System SimpleCarGuy 24.4K subscribers Subscribe 12K views 10 months ago. EASILY INSTALL IT YOURSELF. by ULTRAVOX Wed Jan 02, 2019 6:52 pm, Post 520w DSP amplifier. I think the stock 10-speaker setup is perfectly fine for most people except "audio buffs.". Then you can install the Stage One. But! Copyright 1996-2023, Crutchfield New Media, LLC. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. Z4 E89 audio upgrade. Really. All speakers have a variety of characteristics which determine their ability to reproduce recorded music faithfully and accurately: magnet design and materials, voice coil design, suspension, surround material, cone material, and so on. Our first big hit revolutionized the game of BMW audio upgrades with the world's first fully customized amplifier upgrade: the Alpha One Amplifier. Picture Information. Pelican Parts specializes in performance and OEM-quality replacement parts for Porsche, BMW, Mercedes-Benz, MINI and other European marques. It has all the features I needed and sounds great. Thats why our upgrades arebacked with our industry leading 4 year limited warranty. Every kit includes step-by-step instructions, and is designed to be easy enough that anyone can install it in just a few hours. Every Stage One is 100% BAVSOUND exclusive, and uses our proprietary, vehicle specific speakers. Well replace it at no charge. $110.00. What has impressed me most is that never at any point are the people here pushy they really listen to your requirements and budget and make honest suggestions and give a number of options. They're free with almost all speaker purchases, along with our free vehicle-specific installation instructions. Alpha One was founded by a couple of guys passionate about modifying their BMWs in every possible way with a hefty focus on audio improvements. 03-05 BMW Z4 E85 Roadster Stereo System CD Player Radio Head Unit 6929840 OEM. I don't know what is the problem : The amp could have failed. Post Just unbolt the factory speakers and install ours in place, plug in the factory connections, and play! I was disappointed about this myself. Park with ease and drive safer with a back-up . Here's the order we would recommend you upgrade based on which upgrade delivers the most overall improvement for the money. Sorry for the length, but wanted to provide as complete a description as possible. Currently my amp is dead and I can't use my radio so I figure while that's dead just replace the other stuff and possible put in new speakers to get newer sound versus the sound I've got with minor cracks, Please please for me post links to the stuff you used. Whether you're a first-time DIY-er or an experienced car audio pro, KitFinder takes the hassle and guesswork out of choosing and installing your new stereo and/or speakers. . It had an alpine bluetooth radio with mic installed, a kicker 2 channel amplifier and a set of focal 2 way component speakers (crossovers were hidden behind the midranges in the kick panels, pretty small). We took your factory BMW speakers and re-engineered our upgrade forone thing: clarity. I would suggest you grab a repair manual, you should own one. Technical help when you already have the part: [emailprotected]. I guess what I meant about "audio buff" was that Im not a crazy man that knows all the technical terms and how to do major installs. Thanks to our superior knowledge of everything BMW and an unparalleled level of attention to detail, the Alpha One speaker system came out of the shadows and onto the market. Hi. It also has a BMW 6 cd changer installed in the storage area between the seats. When I remove the panels, suprise there is no door speakers. A yellow warning triangle indicates that the product will fit if you make a minor modification, such as trimming plastic in the dash or drilling new holes for speakers in your door panels. Furthermore, they vary between the "Standard" and "Premium" versions of the audio system, and they don't really tell the whole story, as we haven't even talked about the all-important efficiency values which would need to match the factory speakers - or the actual quality of sound reproduction. Direct replacements for certain products, such as speakers. for FREE Delivery by Wed, Mar. Ever put together IKEA furniture? Was an amp needed? All of that said, when comparing the actual speaker design and how our speakers sound in real world use compared to many, many aftermarket brands, they are, quite simply, exceptional when compared to most aftermarket speakers offered at similar price points. See our Refund Policy for more information. Translation? I don't have wiring diagrams to consult. 2004 z4 30i auto Toledo blue stubby Areo front back sideskirts and rear spoiler M/// MFSW DLV exhaust mod mma tips vanos overhaul 108s refurbed ram air scoop E46 M3 heated seats clear rear lights M/// sport black grills, Excellent that ! How do your speakers compare to "big name" brands like JBL or Infiniti? For a better experience, please enable JavaScript in your browser before proceeding. A great day at Crutchfield involves getting outside and testing new car audio gear, Ned's best friend helps him evaluate frequencies only dogs can hear. Amplifiers and amp accessories for your Z4 like bypass harnesses, DSPs and line output converters needed to add an amp. I dont see that Id need a diagnostic for a CD player problem. And last. - Nick at Pelican Parts. Sign up for exclusive deals & product announcements. $[[defPrice.DriversChoice | saleDisPrice]], $[[defPrice.PowerClarity | saleDisPrice]]. And pretty much every audiophile wants better sound than the factory stereo system can produce. Thus, whether you have Base (Stereo), Hi-Fi (S676A), Top Hi-Fi(S677A), Harman Kardon (S688A) or Individual Audio System (S752A) the quantity of speakers available is going to differ. by mjennings23 Thu Jun 14, 2018 2:45 pm, Post ALL INCLUSIVEEVERYTHING YOU NEED FOR CRYSTAL CLEAR SOUND(EXCEPT TOOLS). Does the Stage One Audio Upgrade come with a warranty? BMW Z4 E85 Stereo Fascia Plate: https://amzn.to/2JGKdFo - 13.00 BMW Aerial Adapter Cable: https://amzn.to/2HCPg4i - 5.50 USB 3 Mounting Plate to USB 3 Male - https://amzn.to/2y5seUa - 6.00 BMW ISO Harness - https://bit.ly/2JuSXLj - 8.00 Products that take advantage of unused space in the car, such as subwoofer enclosures Discussion. Vehicle-specific installation instructions, Chevrolet Monte Carlo Stereos and Speakers. When you select your vehicle on our site, you'll be able A group of our first employees dig into "new" car stereo gear in this vintage van. Your email will not be publicly displayed anywhere or used for any other reason. Effortless Installation in about 30-60 Minutes GHOST UNDERSEAT SUBWOOFER UPGRADE Select your vehicle below and let Crutchfield's vehicle database find the stereos, speakers, and other products that fit your specific model. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Find the best sub for your 2003 Z4 and you'll add bass and fuller sound to your BMW. I have a 2003 Z4 e85 with a BMW Business CD player/radio. JUST BY REPLACING YOUR BMW'S SPEAKERS. With most orders, you'll also get a set of Crutchfield's legendary vehicle-specific disassembly instructions. by heyitsmatty Tue Jun 12, 2018 5:04 pm, Post we know fit or work with your vehicle. The factory amp is loid enough for me. Estimated wait for next available agent : Well email you a transcript of this conversation for your records. You get great sound with just the Stage One because it was designed from the ground up to maximize the clarity and musicalityyour audio system all by itself. The amplifier is switched on by the RAD_ON signal from the radio (> 8 V = ON / < 6 V = OFF). When you purchase through links on our site, we may earn an affiliate commission, which supports our community. to shop from filtered lists of the products, such as receivers and speakers, that Z8. You bet! In most cases, you'll have to connect wires, and set the adapter to work with your new radio. BMW E85 Z4 Business CD Radio Head Unit #64062 65124154935 74.95 or Best Offer 2004-2011 E87 BMW 1 SERIES BUSINESS RADIO CD PLAYER UNIT 9210510 14.98 Click & Collect Was: 29.95 9146710 Bmw X3 Z4 Series E83 E85 E86 Radio Business CD Player . Replaces every speaker in your BMW (except subs), and includes everything you need except basic tools, available separately. Am I missing something? We also carry a wide range of products that actually are designed to work exclusively with specific vehicles. The customer opted for JL Audio speakers which consisted of VR525-CSi front components and VR690TX 6 x 9 speakers for the rear. They will substantially change the way your audio is delivered making it more punchy, well-balanced and clearer than ever but above all, personalized for your preferences. I am a little confused about the steering wheel controller. products, like amplifiers and subwoofers, that can be installed in just about any Replaces every speaker in your BMW (except subs), and includes absolutely everything you need except basic tools (which you won't need if you have one of our authorized dealers complete the installation). All of the bracketary, adaptors and crossovers were included as well which made for an easy sound system upgrade. They had no success at all and even tried bypassing the CD player all together. See what's the best audio replacement kit for your vehicle. Amplified system 1 520w. However, the speakers included in the Stage One are capable of playing at higher volumes distortion free, meaning the usable volume limits of the system are indeed higher. The upgrade of your [[tag1_or_mini]] sound system will depend at large on the stock system your vehicle features. Compatible products include adapters (for Bluetooth or smartphone control, for example) that plug into your vehicle's stereo wiring harness and device holders that mount in a specific spot on the dash. I replaced mine with an alpine 147 BT thru Crutchfield. In Car Technologies Ltd, is a car audio solution distribution company based in the UK, and was founded in 2001. The Top-HiFi amplifier has 2 analogue inputs (left and right). CD player works fine. The Audio System Controller is integrated in the radio / business CD control unit. However what was interesting is the prior 2 way speaker install tapped into the factory bmw stock amplifier. Again, no, you dont. . We make no compromises with our product design or the materials used because we dont have to, so you get great sound without having to change any other components of your vehicle's audio system. $7.29 $ 7. Love Crutchfield! You could take the car to your local mechanic, the BMW dealer, or even any well-regarded local car audio shop -- its your choice. Free shipping. What was your cost if you don't mind me asking? Vehicle manufacturers make compromises in many of these areas in order to keep costs down. what is the wire color for positive and negative ? Due to the technical nature of our business we do not have a telephone help line. When you buy a set of speakers from us, we'll make sure you get the wiring harnesses and mounting brackets you need for your vehicle. With many of these products, you'll have to check your vehicle for available space, and carefully plan your installation in advance. You'd have to go with higher-end parts to make it a worthwhile upgrade over stock. And you can call them toll-free I'll be a customer for as long as they are in business. I used a steering wheel adapter and wireharness. The customer support team is personal and phenomenal. These include: Many car A/V products we describe as universal, in that there aren't dedicated factory locations for them. Try to check in at the 30 hour mark and see what happens. Filtered lists of stereos that we know fit in your dash, The installation parts required to install the stereo gear you're interested in, plus the parts that let you retain certain advanced factory features. 40 Euro cable that replaces the audio from your CD player and converts that to accept a . I would be just upgrading to not have the BMW specific stuff in the car. I replaced the sub also. The reason is simple: we're able to use better materials and speaker designs at the same price point because we don't sell through traditional retail channels with 4-5 middlemen. The sound frequency output sent to the amplifier from the radio is dependent on the speaker configuration. If quality is the same on FM and CD, check the amplifier. That's because BMW, in most cases, uses non-standard impedances and very high efficiency speakers. Our first big hit revolutionized the game of BMW audio upgrades with the world's first fully customized amplifier upgrade: the Alpha One Amplifier. The caller can hear me but I cant hear them. by heyitsmatty Wed Jun 13, 2018 11:21 am, Post Yes, the Stage One really does work and make a dramatic difference in overall sound quality, clarity, and performance, regardless of the type of audio system your BMW was equipped with from the factory (even your premium system). Audio Bluetooth 5.0 Adapter w/h Microphone Kit, for BMW Z4 E85 E86 X3 E83 Mini Cooper R50 R53. Any thoughts on this dilemma? and changed the door mid-range from the standard bmw part to a more substantial one. I have a Sirius portable system plugged into the front Aux and take the Sirius head unit with me to my different vehicles. if you don't have factory fitted tweeters we can install the tweeters in the original factory mounts direct from BMW. The most common include: Dash kit: A dash kit includes any trim pieces and brackets needed to mount a new radio in your dash opening and keep a clean factory look. Z4 Roadster (E85) . Since 1974.SM. Crutchfield is a servicemark of Crutchfield Corporation. please kazste. Please be aware that I am no pro and my system isn't perfect but all I know is that it SOUNDS AMAZING, CRISPY, POWERFUL & PUNCHY.. . Now, incoming calls are barely audible. This is super helpful. $15.99 $ 15. While the Stage One provides lush, detailed highs, more defined lows, and significantly more midrange detail, your factory BMW audio system's output is limited by your amplifier, which isn't changed with the Stage One. - Nick at Pelican Parts.

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