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Silver Member Username: PolksavagePost Number: 157 Registered: Jun-06 | I want to purchase these speakers http://www.polkaudio.com/homeaudio/specs/lsi7/ Electrical Overall Frequency Response 45Hz - 27kHz Lower -3dB Limit 53Hz Upper -3dB Limit 26kHz Nominal Impedance 4 ohms Recommended Amplifier Power 20 -150 w/channel Efficiency 88 dB Crossover 2.4kHz; HPF 18dB/oct, LPF 12dB/oct. Inputs Dual 5-way binding posts for bi-amp/bi-wire I have this reciever yamaha rxv1300, which can be switched to 4ohm impedence http://www.dealtime.co.uk/xPF-Yamaha-RX-V1300 will it be enough power to run these speakers well? |
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Silver Member Username: PolksavagePost Number: 158 Registered: Jun-06 | heres a link to my reciever http://www.yamaha.co.jp/english/product/av/pdfs/moreinfo/rxv1300.pdf |
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Gold Member Username: Jan_b_vigneDallas, TX Post Number: 9896 Registered: May-04 | . I have a problem with any solid state amplifier that has to tout its Linear Damping circuit and then qualifies its operation to only the front L-R channels. Informing me the master volume control operates all channels simultaneously is another item that makes me go, "Duh!" This sort of hyperbole leaves most veteran audio folk asking just what kind of amplifier section did they design. The blurb states the amplifier section will produce as much as 100 watts, not very inspiring. But it does say this is enough to fill a room with vibrant sound. All that and it doesn't tell you what you really need to know. The speakers in question are rated four Ohm nominal which makes life tough for an amplifier section in a HT receiver. Since speakers do not stay at their nominal impedance, it is a safe bet these speakers dip beneath four Ohms at some point. Depending on the speaker crossover's effect on current demand from the amplifier (which I can't find in any of the information you've provided) this speaker might be asking quite a bit from your amplifier. If it were me, I would be considering eight Ohm nominal speakers and inquiring about how much current is required to drive the speakers satisfactorily. If it is more than a few amps or the salesperson can't supply an answer, look for another speaker. . |
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Silver Member Username: PolksavagePost Number: 159 Registered: Jun-06 | I'm getting the emotiva Ultra Theater Series http://emotiva.com/products.html soon hopefully after customs gets done with it. I was told 2 more weeks. THis should have no probs running those speakers I hope |
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Silver Member Username: StefanomVienna, VA United States Post Number: 409 Registered: Apr-06 | Actually the LSi 7 does not dip below 4 ohms (Stereophile has measurements). However, it still isn't an easy speaker to drive. The Yammy wouldn't be my first choice. |
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Gold Member Username: NuckPost Number: 6086 Registered: Dec-04 | The emotive stuff will be fine. |
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Silver Member Username: GamerdudeOntario Canada Post Number: 426 Registered: Apr-06 | The yamaha could do it but at low-mid volumes settings |
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Gold Member Username: NuckPost Number: 6098 Registered: Dec-04 | Kyle, you are being polite. You know the Yammy sucks. |
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Gold Member Username: NuckPost Number: 6100 Registered: Dec-04 | In answering the OP? No. |