If the problem you are experiencing is not listed below or if the instructions below do not help, turn off this unit, disconnect the power cable, and then contact the nearest authorized Yamaha dealer or service center. More than 15000 DACs, someone feeling cheeky could say. Setting the speaker impedance Under its default settings, the unit is configured for 8-ohm speakers. Locate the Straight? To obtain the latest manual, access the Yamaha website then download the manual file. Copyright 19982023 Audioholics, LLC. direction and jump out of the magnetic gap. Disconnect all speakers and try again. standard for determining nominal loudspeaker driver impedance. I did, and had thoroughly forgotten about the automatic standby. I am wondering if it's OK to run a pair of 8 ohm (custom made ARs) and a pair of 4 ohm speakers (Celestion 15XRs) on the A+B setting of a Yamaha A -S501, set at 'low impedance'? Probably much higher then this at normal volume but 4 ohm when the volume is loud. If the battery connectors come into contact with other batteries or metallic objects, they may explode or battery liquid may leak, possibly resulting in fire, burns, loss of vision, or inflammatory injury. The No. Follow the rules of your local authority to dispose of used batteries. Those of us not old enough to remember when A-S701 // A-S501 A-S301 . And how! JUST BAD?? Do not drop this product or apply any strong impact to the product. mv: What such an impedance selector switch typically does is to reduce the rail voltage(s) for lower impedance loads (one pair of 4 Ohm speakers or two pairs of 8 Ohm speakers) in order to limit the maximum current (as half the impedance/resistance at the same voltage means twice the . It's one thing for the impedance switch to be 8/6/4 depending on particular unit but generally the recommendation is to leave it at the higher impedance so that the amp isn't limited (which is essentially all the lower impedance settings do, is limit the performance of the amp to meet certain criteria not particularly relevant to normal use). I dont think you would need a loudness switch with those as they are very conservatively rated and easily go to 4 ohm and should have no issue driving those. The EIA published a standard which has for many years been the defacto The record is being played on a turntable with an MC cartridge. Sorry if this has been answered, but I am confused as to how to set the impedance on my new Yamaha A-S801. Hi, well, I guess I am asking for trouble running things this close to the wall, however I wanted to get some opinions because it sounds SOO GOOOOOOOOD set as it is . Digital audio inputs for TV and Blu-ray Disc player, ToP-ART (Total Purity Audio Reproduction Technology) and high quality parts, I/O (input to output) direct symmetrical design, Custom-made power transformer / 12,000uF block capacitors / extruded aluminum heat sinks, Gold-plated speaker terminals and RCA terminals, Simple yet sophisticated design (aluminum front panel). You must log in or register to reply here. Install this product in accordance with the instructions described in the following manual. button on the front panel and hold it down. This is because all the switch does is limit current from the power supply and hence can affect sound quality. interactions with their output filter. this can result in this site earning a commission. It may not display this or other websites correctly. Lounge - Panny 46G10, Denon AVR3808, DVD2500BT, VMHD, B&W FPM6, FPM4 x2, M1 x2, ASW610. the loudspeaker, especially vented designs, to move wildly causing gross AVForums.com is owned and operated by M2N Limited, Setting the switch to 8 ohms (high) allows full power. Icepower 50Asx2Se input buffer preamp buzzing. albums. This unit has additional menus that are di splayed in the front panel display. when using 4-ohm rated speakers mostly due to liability. Most AV receivers or integrated stereo amps now include onboard protection circuitry anyway that negates any real need for the kind of impedance switching being commonly employed. The first part is correct, we agree that the impedance changes with pitch/frequency, but it does not change with volume. (A-S701) 4 PHONES jack Connect your headphones. (You must log in or sign up to reply here. The speaker wires are touching each other or shorting out against the rear panel. YAMAHA A-S701 2-Ch x 100 Watts Natural Sound Integrated Amplifier Black Item #: YAMAS701BL-RB Availability: IN STOCK, ships out in 1-2 Business Days. I will be using 2 sets of floorstanding speakers, one JBL and one Athena Technologies. Jun 4, 2021 #3 of 21 batman144144 Agent Joined Oct 2, 2011 Messages 28 Few basic measurements done with Xonar U7 and Focusrite Solo 3. affiliations include, but are not limited to, the eBay Partner Network, and This switch is generally used to safely match the impedance of the speaker to the amplifier to avoid creating a load which will be difficult for the amplifier and also keeps it from overpowering. If problem remains it is in the unit. Well, this Yamaha is less than a month old, I shouldn't think a cleaning is called for ! When turning on the power to the audio system, always turn on the power to the power amplifier LAST. Set the corresponding SPEAKERS selector to A, B or A+B BI-WIRING position. If it goes away then you may have had a short between a pair of speaker connectors. The main difference is, in principle your VFD drive has to be sized large enough for the motor it is driving. Because of liability and the Remove approximately 10 mm of insulation from the end of each speaker cable. 5 SPEAKERS selector Selector Speaker status position OFF Both sets of speakers are off. Insert the power cord plug into the AC outlet that is visible and easily accessible. #1. On low, two 8 Ohm speakers A+B would result in a 4 Ohm load, and that's why it is recommending what you see. Do not place this product in an unstable position or a location subject to vibration. I have driven this amp very hard and it barely gets warm due to very good heatsinks and adequate ventilation. The BASS, TREBLE, BALANCE and LOUDNESS controls do not function while the CD DIRECT AMP function is turned on. We recommend leaving it at the default 8 ohm setting and NEVER changing it. Worth its own thread? 10. This unit turns off suddenly and the power indicator blinks. The PHONO jacks are designed for connecting a turntable with an MM cartridge. Both are fairly efficient. You're confusing things a bit. When turning off the power to the audio system, turn off the power to the power amplifier FIRST. There is a dreaded impedance switch on the back of the A-S801 that reduces the output power of this unit for certification purposes only. Mrtn77, Dec 16, 2020. I'll give it a try. ), Forum Policies, Rules, and Terms of Service. 3. This particular loudspeaker As we can see from In my HT Setup, my base layer of 5 speakers are rated 8ohm, while the Dali Alteco's itself for Atmos duties are 4 ohms speakers. When removing the power cord plug from the product or an outlet, always hold the plug itself and not the cord. Check that the speaker wires are not touching each other and then turn the power of this unit back on. VOLUME controlIncreases or decreases the sound output level.12. You are using an out of date browser. So in other words when the volume changes. A IMPEDANCE SELECTOR switch Do not change the IMPEDANCE SELECTOR switch while the power is turned on, as doing so may damage the unit. Do you hear a click inside the amp when it happens? Front Popular 16 Ohm loudspeakers are non-existent.. I leave mine on HIGH, as my speakers are 8 ohm nominal and I want the most power the amp can deliver. Nothing comes close. BALANCE and LOUDNESS controls does not affect the sound. Use speaker(s) with proper speaker impedance. Noise difference between. Follow the rules of your local authority to dispose of this product and its accessories. And getting better sound as a result. (A-S701) Do not use the following Included accessory with other devices. Otherwise, fire or electrical shock may be caused. I use it the CD input 99 percent of the time, the other percent I use the USB DAC input. The volume level is low while playing a record. The SUBWOOFER OUT jack attenuates signals over 90 Hz.9 AUTO POWER STANDBY switch. JavaScript is disabled. Do you by chance have the auto-shutoff switch engaged at the back of the amp? If the problem persists, the cables may be defective. If the IMPEDANCE SELECTOR switch may not be fully slid to either position, remove the power cable and slide the switch all the way to either position. L' ampli intgr Yamaha A-S701 dveloppe 2x100 watts sous 8 ohms avec un trs bon taux de distorsion harmonique de 0,2 %, sur une plage de frquences raliste, de 40 Hz et 20 kHz. similarly. Yamaha A S701 2021 Check Price on Amazon The back of the amplifier carries all the digital inputs and output of a modern receiver. Effectively 2 sets of 8 ohm speakers in parallel is the 4 ohm load. Set the IMPEDANCE SELECTOR switch according to the impedance of the speakers to be connected (see page 5). Confirm normal sound output from speakers by increasing the volume gradually. Keep the batteries in a location out of reach of children. Thanks everyone ! YAMAHA products are designed and, Yamaha EP-E70A Earphones User Guide - Download, Yamaha Mixing Console MG10XUF User Manual - Optimized PDF Yamaha Mixing Console MG10XUF User Manual - Original PDF, Your email address will not be published. Before turning on the power to or using this product set the volume level to a minimum. Based on the concept of "Natural Sound" for reproducing all music as it really sounds, this amplifier is built with scrupulous care from its circuit design to basic sound production. ), Forum Policies, Rules, and Terms of Service, Drivers: One 1 Aluminum Dome Tweeter, One 5.25 Kevlar Midrange, Two 6.5 Kevlar Woofers. on YAMAHA A-S701,A-S301,A-S501, Integrated Amplifier Owners Manual, Connecting speakers and source components, YAMAHA YHT-5960U Channel Home Theater System with MusicCast User Guide, YAMAHA RM-TT Boundary Microphone Installation Guide. Audio & Visual Hi-Fi Components A-S701 A-S701 Integrated Amplifier Overview Features Specs Downloads Product Information The colors and finishes shown may vary from those on the actual products. You are using an out of date browser. HI I'm new to the forum and needed to ask one question that wasn't asked about this topic. look at the loudspeaker's impedance curve and efficiency to understand how it As a result, specifying a loudspeaker by its DC impedance or voice coil All Rights Reserved. To make sure the drop-out isnt occurring in the DAC, plug it into another input on the Yamaha. Connect the stereo cable for audio units and the speaker wires properly. If any of the following abnormalities occur, immediately shut down the power. Yamaha HTR-6180 [113/152] Advanced setup. Also, on the amplifier parts and schematic, the above two are about the same with the "older brother" A-S700. There is no good reason to bi-wire generally. The manual only states that speaker impedance should be 8 ohms or higher with the switch position at 'low', but does not clarify if that . Its a damned conspiracy! While keeping the Straight button held down, press the Main Zone power button on the front panel. ohm speaker having identical efficiency! Yamaha A-S701 Manual Online: Troubleshooting. are using the advanced setup menu. Switching this to 4 ohm mode limits power supply voltage and output power. The input source indicators light up when the corresponding input sources are selected.The input source names correspond to the names of the connection jacks on the rear panel. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). Despite the YAMAHA A-S701 2-Ch x 100 Watts Natural Sound Integrated Amplifier Silver. Do not place on this product any containers (such as vases or medicine bottles) that contain liquids. Rotate the LOUDNESS control counterclockwise until the desired volume is obtained. Sound has always cut out while using the CD input (source is a Topping DAC). Set the LOUDNESS control to the FLAT position. As for the second hand A-S700, the 254 EUR is a steal. The amp never flinched, not a whisper of distortion and cool as a breeze. Connected both sets of floor standing speakers. Connect the speaker cables properly and press the ch (power) switch again. The amplifier features Yamaha's ToP-ART (Total Purity Audio Reproduction Technology). Do not use different types of batteries (such as alkaline and manganese batteries) together. Impedance swiching is hardly ever implimented in a manner that benefits the audio and is more often than not simply a matter of the manufacturer reducing the rail voltage if the switching is set to the lower impedance option. this can result in this site earning a commission. I replaced the 2SA1694/2SC4467 pairs with 2SA1962/2SC5242 pairs as these are available from Farnell, and the originals only available on Ebay, with the posibility of buying fakes. For more information see: A/V Receiver Impedance Selector Switch Yamaha A-S801 Dynamic Power Test (1kHz, 4 ohm load, 1CH driven) Bi-wire connectionIn the case of speakers supporting the bi-wiring connection, the tweeter/midrange unit and woofer of the speakers can be driven independently through connections shown in the following figure, allowing you to enjoy clear mid-and high-range sounds. Each other or shorting out against the rear panel DVD2500BT, VMHD, B & W FPM6 FPM4... Turn on the power cord plug from the power cord plug from the cord! ( see page 5 ) shock may be caused a S701 2021 check Price on Amazon the back the. Despite the Yamaha A-S701 2-Ch x 100 Watts Natural sound Integrated amplifier Silver 4 ohm mode limits power supply hence... 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