Do I need more UMPH? :D

[njedpx3]

Get an SPL meter

The Def Tech BP6B are very efficient (sensitivity 91dB) and even with only 75 RMS they should sound fairly loud. But as others have said it might be time to upgrade AVRs and get one with pre-outs...then you can always add an external amp for more power.

But you should invest in an SPL meter, Actually the Radio Shack on is pretty good for about $50

either analog
http://www.radioshack.com/product/index.jsp?productId=2103668

or digital ( the one I have)
http://www.radioshack.com/product/index.jsp?productId=2103667

Then let us know what level you are listening at ... it it is above 100dB then you are insane (...Just Kidding but man you like loud music!)


BP6B :Specifications
Dimensions | Metric :7" W x 11" D x 35" H | 17.8 x 27.9 x 88.9 cm
Driver Complement :Two 1” pure aluminum dome tweeters; Two 5.25” high definition bass/midrange drivers
Frequency Response :25 Hz - 30 kHz
Impedance :Compatible with 8 Ohm outputs
Sensitivity :91 dBRecommended Associated Amplifier Power :20 - 175 watts
A/V Receiver Crossover Setting :Large; Full Bandwidth
Inputs :One set of five way binding posts
Accessories :Feet; Isolation Spikes
Weight | Metric :42 lbs | 19.1 kg
Available Finishes iano-Gloss Black
Packaging :One to a carton
Warranty :5 Years


Good Luck and Good Sound,

Forest Man

 

[picture_shooter]

Ok all,

So I went out and did some shopping, and here is what I picked up.

Any good?



http://www.pioneerelectronics.com/ephox/StaticFiles/PUSA/Files/SC-05.pdf

 

[TLS Guy]

Ok all,

So I went out and did some shopping, and here is what I picked up.

Any good?



http://www.pioneerelectronics.com/ephox/StaticFiles/PUSA/Files/SC-05.pdf

That is not a good enough receiver for those speakers. It has Class D ice amp modules, I suspect sourced from Sanyo. They do not like low impedance loads. Your speakers are four ohm and not eight, in fact they dip below four ohm.

If you use that receiver, which is old stock, then you will need to give Emotiva a call.

 

[picture_shooter]

That is not a good enough receiver for those speakers. It has Class D ice amp modules, I suspect sourced from Sanyo. They do not like low impedance loads. Your speakers are four ohm and not eight, in fact they dip below four ohm.

If you use that receiver, which is old stock, then you will need to give Emotiva a call.

The Def Tech's BP6B's states on their website that its Compatible with 8 Ohm outputs, not good enough? really??


BP6B :Specifications


Dimensions | Metric :7" W x 11" D x 35" H | 17.8 x 27.9 x 88.9 cm
Driver Complement :Two 1” pure aluminum dome tweeters; Two 5.25” high definition bass/midrange drivers
Frequency Response :25 Hz - 30 kHz
Impedance :Compatible with 8 Ohm outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :20 - 175 watts
A/V Receiver Crossover Setting :Large; Full Bandwidth
Inputs :One set of five way binding posts
Accessories :Feet; Isolation Spikes
Weight | Metric :42 lbs | 19.1 kg
Available Finishes iano-Gloss Black
Packaging :One to a carton
Warranty :5 Years

 

[picture_shooter]

That is not a good enough receiver for those speakers. It has Class D ice amp modules, I suspect sourced from Sanyo. They do not like low impedance loads. Your speakers are four ohm and not eight, in fact they dip below four ohm.

If you use that receiver, which is old stock, then you will need to give Emotiva a call.

So u think I should go towards with a Yami or Marantz a/v?

 

[GranteedEV]

He probably thinks you should buy an AV7005 Pre/Pro with a Quad Current Dumping Amp or five

Anyways I too have read some "odd" things about the pioneers with the ICE amps. Nothing I can say discretely or out of my own xperience, but it's probably not my first choice.

 

[TLS Guy]

The Def Tech's BP6B's states on their website that its Compatible with 8 Ohm outputs, not good enough? really??


BP6B :Specifications


Dimensions | Metric :7" W x 11" D x 35" H | 17.8 x 27.9 x 88.9 cm
Driver Complement :Two 1” pure aluminum dome tweeters; Two 5.25” high definition bass/midrange drivers
Frequency Response :25 Hz - 30 kHz
Impedance :Compatible with 8 Ohm outputs
Sensitivity :91 dB
Recommended Associated Amplifier Power :20 - 175 watts
A/V Receiver Crossover Setting :Large; Full Bandwidth
Inputs :One set of five way binding posts
Accessories :Feet; Isolation Spikes
Weight | Metric :42 lbs | 19.1 kg
Available Finishes iano-Gloss Black
Packaging :One to a carton
Warranty :5 Years

Def Tech can say what they like, but effectively those speakers are four ohm. Since impedance is not linear but varies greatly with frequency, a manufacturer can rate the impedance of a speaker anything he wants.

The minimum impedance is much closer to the mark. An honest rating is around 10% above the minimum impedance, which for your speakers is just below four ohms.

That is an older receiver and right off the bat after its introduction we had posts about this receiver not driving peoples speakers.

In fact if the speakers were four ohms, Pioneer were not honoring the warrant. They used their list as to what the impedance of a speaker was, and not the speaker manufacturer.

 

[TLS Guy]

So u think I should go towards with a Yami or Marantz a/v?

I would go with the Marantz that was recommended. That did well on a bench test into a four ohm load.

If you want to avoid external amps then you need a different receiver. The Marantz would be a good choice.

 

[GranteedEV]

I would go with the Marantz that was recommended. That did well on a bench test into a four ohm load.

To be clear, I recommended the slight-step-down 5004. The bench tested receiver was a 6004. I trust marantz and I doubt there would be a huge difference (their claimed difference is 20 watts into 8 ohms between the two receivers... which is negligible) but truly and reliably repeating the test results would require the step-up model.

Of course that does bring us back to the whole refurb debate as you're now paying a more notable sum of money for a refurb.

 

[picture_shooter]

TLS & EV -

Thank you both for the honest input.

I will take it back tomorrow and look towards the Marantz.

It was funny you mentioned about the Def Tech guy, because I just called them and the tech their said the BP6B are honestly like 6-ohms, but not 4 or 8.

He told me if I have a receiver that I can select 4, 6 or 8 ohm, he told me to switch it to 6ohm.
So I went and mentioned about this Pioneer I got and he said it would be fine. But I will go w/ my gut and take this back (didnt open it) and get something that is 4-ohm stable.

Many thanks again,

 

[TLS Guy]

TLS & EV -

Thank you both for the honest input.

I will take it back tomorrow and look towards the Marantz.

It was funny you mentioned about the Def Tech guy, because I just called them and the tech their said the BP6B are honestly like 6-ohms, but not 4 or 8.

He told me if I have a receiver that I can select 4, 6 or 8 ohm, he told me to switch it to 6ohm.
So I went and mentioned about this Pioneer I got and he said it would be fine. But I will go w/ my gut and take this back (didnt open it) and get something that is 4-ohm stable.
Many thanks again,

The guy talked out of both sides of his mouth at once. If he told you to use a 6 ohm setting if there was one, he knows there is a problem.

All those ohm switch selectors do is limit the current provided by the amps, so they reduce the power available and lower the odds of the receiver blowing up.

They state on their site that none of their speakers are recommended for entry level receivers. That tells me they know people have run into trouble.

It also tells me you need a receiver that has an MRSP in the vicinity of a grand and known to handle four ohm loads well.

I would actually go with the 6004 since that was the one tested. If power increases into a four ohm load, that is a very encouraging sign and means the amp section has current to spare.

I think that will be fine for you, and you won't have to call Emotiva.

 

[picture_shooter]

What you think about this?

http://www.ultimateavmag.com/content/pioneer-elite-sc-05-av-receiver-measurements

 

[PENG]

What you think about this?

http://www.ultimateavmag.com/content/pioneer-elite-sc-05-av-receiver-measurements

Very impressive output for $1800 listed. Another example of you cannot always go by weight once it gets to 35 lbs or more. This one weighs 40 lbs but is as powerful as those 50 to 55 lbs NAD, HK, Onkyo products. It output for 4 ohm load is also impressive, more so than most NAD models in the 2 to 3K price range.

 

[templemaners]

Have you considered doing something like getting a preout equipped receiver with the features you want and pairing it with a quality pro amp?

 

[picture_shooter]

Very impressive output for $1800 listed. Another example of you cannot always go by weight once it gets to 35 lbs or more. This one weighs 40 lbs but is as powerful as those 50 to 55 lbs NAD, HK, Onkyo products. It output for 4 ohm load is also impressive, more so than most NAD models in the 2 to 3K price range.

No kidding, I think this is a keeper

Into 4 ohms, the amplifier reaches 0.1% distortion at 249.6 watts and 1% distortion at 338.4 watts.

 

[picture_shooter]

Have you considered doing something like getting a preout equipped receiver with the features you want and pairing it with a quality pro amp?

This is why I am considering getting a A/V receiver that has preouts since my Denon 1611 does not

 

[picture_shooter]

That is not a good enough receiver for those speakers. It has Class D ice amp modules, I suspect sourced from Sanyo. They do not like low impedance loads. Your speakers are four ohm and not eight, in fact they dip below four ohm.

If you use that receiver, which is old stock, then you will need to give Emotiva a call.

Didnt get time to open the box and installed the 05 yet, but I decided to read up more and there seems to be a huge post over @ AVS forum.

What is your thoughts about this guys post?

http://www.avsforum.com/avs-vb/showpost.php?p=17682053&postcount=14944

Copy / paste from linky above:

Dang....I go away for a little bit and here you guys go upgrading on me.

Gov, what Panny did you get?

Regarding 4 Ohm speakers with the SC series, I've stated before that I'm running 4-6 Ohm speakers all the way around in my HT (Rockets). I can't even begin to strain my SC 05, and I play mine...ummmm....dynamically.

Previous to the SC 05 I danced for a bit with an Onkyo 805, then an 875, and then a Marantz SR 8002. Comparatively, my speakers sent the 805 into protect mode pretty readily. Got a little better headroom from the 875, but it sounded harsh (clipping?) in doing so. The Marantz SR8002 came closest to the warm articulate sound of the SC 05, but Audyssey set up couldn't equal what I got from MCACC. And, I'd still say on a subjective basis, the SC 05 outmuscled the Marantz, too.

I was coming from an EMOTIVA LPA/UPA separates set up. I'd say the SC series is at least the equal of those separates....surpassing them in the features dept.

Of course, given a different room, with different speakers, the results would change.

Briefly, that's been my experience.