Logically it seems appropriate since theres lots of activity going on in that frequency range, normally played at higher levels than 35% HU volume. I will try the 100Hz tone (maybe the others too) for both the 4channel Pioneer GM 8604 and the SSL LoPro10 sub. 3) The speakers may be presenting 8-ohm loads to the amp. The place the gain knob was set and the voltage readings were exactly the same as it had been using the scope. P. S. In the pr enclosure those subs take 600 watts RMS all the way down to 12 Hertz then you start to get mechanical noise I've only done it once lol. Do you have any experience with these speakers (Morel Tempo Ultra Components)? (PS: producing 300 watts through a 2-ohm load takes 24.5 volts.). It’s also an under-rated amp and can slightly exceed the rated power specs. Different meters will have different degrees of deviation. For a more detailed explanation, see my article about Tuning your subwoofers. QUESTION: Please help. I have read some tutorials stating that you should only use the scope and test tone to set the gain up to the voltage calculated by the units actual power and the 4 ohms, and not the clipping point. So I'll use the 100hz and tune both. 4) Your multimeter's AC volts RMS readings may not be accurate at the frequency tone you're using. Play a 50 Hz tone to my Audiobahn to set the However, at 1000 hz, I can only get to about 30% on the dial before a very noticable buzz. I have two other gain adjusters for the other 4 channels and the highest reading i get on either of them is 42. Your customer service is the best I have ever experienced in my life. Does this seem sound to you Sir? Please download all three files: Gain Match, Noise Floor and Full Test, in your preferred format. Everything I read from others doing it, they can get the readings up over 60 watts and gain not even turned up all the way. Stereo volume is at 75% as well. Never tamper with any safety equipment in buildings. James, I don't recommend using a multi-meter to set an amplifier's gain because it'll only read voltage accurately around 60 Hz (maybe 40-100 Hz) and can't tell you if the signal's clipped or not. Find the receiver's highest clean volume, then the LOC's, and then the amp's. So I've been messing around with my oscilloscope to set the gains on two amps.. my head unit is a pioneer AVH X2800bs They don't hurt at all. 50Hz Tone - Used to set up your subwoofer amplifier So attaining an output of 30 volts RMS through a 2-ohm load produces 450 watts RMS. In an amplified car system, you need to set your amplifier’s gain correctly in order to enjoy your music’s full range of dynamics and frequency response — hearing all the notes clearly, whether loud or soft. With the pioneer I can get 25v from the amp easy, with the JVC it can barely reach 6v, tried a new JVC 2-din with same preout voltage, same result barely 6v output. What size of wire should you should use when installing an amplifier? It's a focal amp, 70 watts rms x 2, and it's pushing morel maximo 6 components. Brandon, If you bought your gear from Crutchfield, you could call Tech Support for free help troubleshooting your system. Register Now! Personally, I think using test tones and listening for the buzz is an easier and more accurate method for setting an amp's gain. A sine wave sounds like a hum. There are a lot of commercial test tone CDs available, but all of the CDs we've seen suffer from the same fatal problem: The tones are spaced at either 1/3 or 1/6 octave intervals, which is far too coarse to assess the low frequency response in rooms the size you'll find in most homes. Whatever the differences between the methods were, they all resulted in having the receiver and amp properly gain-matched, and loud, distortion-free music ensued. Maybe I am abnormal but I actually read the article before questions or comments...ha ha...smh. Or what is recommended for working with both the gain dial and the remote knob in the gain setting process? The instructions for the LC7i say that its gain should be set high and the amp's set low. Doing so will virtually guarantee your amp will clip the signal when the receiver's volume is turned up later. set the volume level Brian, Finding the maximum clean volume of your receiver is unaffected by the amplifier's gain setting. This method can produce high-pitched, annoying, ear-drilling sounds that could hurt your hearing if you expose yourself for too long, and definitely will bother everyone within listening distance. The relative setting of the volume knobs also come into play - 3/4 volume on one unit might not match the other. i installed Infinity Reference 6532ix's (coaxial) in the rear door of my 2016 Chevy truck and Infinity Reference 9630cx's (components with passivize crossovers) in the front. Ray, There are a few short-falls to using multimeter readings to set gain, instead of your ears. So basically to tune properly the LPF needs to be all the way up along with the volume at the proper level then adjust the gain till it clips/distorts/buzzes right? Not everyone wants to hear my songs played loudly over and over again. You'll probably get better results. Thanks again. The issue persisted. The MTX is a multi-zone web-based audio distribution system but let’s keep it simple and call it a matrix. Oh and I have the two 12inch MTX Terminator subs in a box whats a good amp? Quick Sound Check and Browser Compatibility Test I used test tones to set my amp gain for my component speakers. I am not responsible for your actions. An example of a a clean waveform (left) and a distorted, clipped wave (right). | MTX Audio - Serious About Sound® Focal also makes an excellent tuning disc that you may be able to find online as well. ground is good from the amp to the frame. A test tone is a single note played at a specific frequency, and is typically found on a … These test tones are sine waves meant to provide a consistent signal for the KEY500.1 amplifier to reference. If that's not possible (filters always on), then you'd start with high-pass filters set to their lowest frequency and the low-pass filters set to their highest frequency. Getting hands-on with our products helps us pick what's best for our customers. The equipment chain in question is ... Crutchfield collects state sales tax on items shipping to the following states: AK, AL, AR, AZ, CA, CO, CT, DC, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MS, NC, ND, NE, NJ, NM, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY. Copyright ©1996-2021, Crutchfield New Media, LLC. Hello just purchased a jl audio w6v3, been trying to get the gain set right for a week now using a multimeter. Perhaps it isn't important at all whatsoever since it's never mentioned. Both are equalizers used to optimize the tone of the bass sound. Where are people downloading these tones from? Make sure the tone is the same amplitude that you will use to tune your amp. All of our representatives are currently chatting with other customers. Calls may be recorded for training and quality control purposes. Maddie was very polite and knowledgeable. -5dBFS: Designed for normal/daily applications, there will be less dynamic range but higher potential audio output levels. They talk to you like a friend and are very helpful. MTX SUPPORT LIBRARY Valuable articles on how to choose, match, build and install components for all of your audio applications. MTX series - Training video - 1.2 Peripheral devices. Once you have chosen the correct Gain track for you gain setting please make sure you use the matching Sweep track to ensure correct KEY operation. If I had wanted to, I could have set the amp’s output to exactly 50 watts, by turning the gain down until the voltage read a targeted number, in this case 14.14 volts AC. Thanks for taking the time to answer everyones questions. But most car amplifier gains control pairs of channels - like left-right or front-rear - so you adjust the gains for two speakers at once. I tried using the "test tones by ear" method in my setup however, and didn't get very far. Our wiring diagrams will help you find the best way to wire your subs and amps so you'll get the best performance out of your gear. I turned up the gain to the amp’s top clean-playing point and read the volt meter. Please help? I've tried setting by ear but the E60 BMW does not have a visual for the volume so it's difficult to tell when one has hit 3/4 volume etc etc plus the buttons can be pressed til time immemorial without one having the foggiest whether you've hit the top, mid-top, somewhere-top, not-so-top etc.