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Thread: Is my reciever powerful enough................ |
    
Silver Member Username: Polksavage
Post Number: 157
Registered: Jun-06
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| Posted on Thursday, March 01, 2007 - 01:58 pm: |
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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: Polksavage
Post Number: 158
Registered: Jun-06
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| Posted on Thursday, March 01, 2007 - 02:25 pm: |
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heres a link to my reciever
http://www.yamaha.co.jp/english/product/av/pdfs/moreinfo/rxv1300.pdf |
Gold Member Username: Jan_b_vigne
Dallas,
TX
Post Number: 9896
Registered: May-04
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| Posted on Thursday, March 01, 2007 - 03:32 pm: |
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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: Polksavage
Post Number: 159
Registered: Jun-06
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| Posted on Thursday, March 01, 2007 - 03:42 pm: |
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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 |
Silver Member Username: Stefanom
Vienna,
VA
United States
Post Number: 409
Registered: Apr-06
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| Posted on Thursday, March 01, 2007 - 04:24 pm: |
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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. |
Gold Member Username: Nuck
Post Number: 6086
Registered: Dec-04
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| Posted on Thursday, March 01, 2007 - 09:43 pm: |
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The emotive stuff will be fine. |
Silver Member Username: Gamerdude
Ontario
Canada
Post Number: 426
Registered: Apr-06
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| Posted on Friday, March 02, 2007 - 12:38 pm: |
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The yamaha could do it but at low-mid volumes settings |
Gold Member Username: Nuck
Post Number: 6098
Registered: Dec-04
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| Posted on Friday, March 02, 2007 - 09:43 pm: |
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Kyle, you are being polite. You know the Yammy sucks. |
Gold Member Username: Nuck
Post Number: 6100
Registered: Dec-04
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| Posted on Friday, March 02, 2007 - 09:47 pm: |
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In answering the OP?
No. |
