Axiom Home Page Forums General Discussion Home Theater Bi-amping Denon 3805 in 5.1 to L/R(240watts@8ohms)

Look a new Bren.

Yeah, yeah... me wearing a ClearCom. Figured I was due for an update.

Bren R.

Bren,

What's a ClearCom? That thing on your head? And don't ask me to update my picture!

Regards,

Yes.... a communications headset.

It's gonna take some time to get used to the new photo. In this one you look almost benign. No more satanic evil look. Could this indicate a kinder, gentler Bren? NAH!

In reply to:

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What's a ClearCom? That thing on your head? And don't ask me to update my picture!

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Brand name for the ubiquitous "broadcast party line communications device"... I believe my right hand is molded exactly to the shape of the RS-501 beltpack:

And I have a permanent dent from wearing their CC-95 single muff headset:

And yes, I do have my own headset for working on road crews. Something pretty unhygienic about wearing a silk sock on your ear for 6 hours at a time. Makes you question who wore it before you.

Bren R.

Not realizing our emails would turn into public domain, I thought I would come in here and offer a response to this inquiry.

First off, we never claimed biamping would yield total output of 240wpc but instead said that the LP and HP portions of each speaker would receive 120wpc each, thus the amp had the potential of delivering a grand total of 240wpc to each main speaker. This is not the same as bridging where you would double the total power to the entire speaker load.

In reality you don’t see a 3dB gain in headroom with biamping like you would with bridging and I apologize if I caused confusion in my quick email reply. However, biamping can improve the sound quality of the system since each amp is delivering bandwidth limited amplification to their respected loads also reducing the potential of back EMF ingress from the other drivers that are now being amplified independently. Of course the true benefits of biamping cannot be realized without replacing the passive crossovers with actives, but that doesn’t mean no benefits exist for passive biamping.

In the case of a receiver amp with finite output impedance, this could be an advantage assuming the power supply is up to task for delivering full power into 4 channels instead of just two. The AVR-3805 is capable in this respect. Don’t forget that the HP portion of the speaker system usually consumes far less power than the LP portion so in a two way system the tweeter will at best consume a few watts since music above 8kHz is harmonic in nature. We have found that passive biamping of tower speakers with receivers does improve system bass control, which is likely to do more with the output impedance of the amps than actually furnishing additional power. We plan on doing more testing in the future to confirm our subjective listening assessments. Stay tuned…

Thanks very much for your clarification.

Just to clarify your statement; "Not realizing our emails would turn into public domain".

Only the "technical information" and "system parameters" were mentioned. This information was brought forward to clarify the earlier information request I sought. I required verification from the very knowledgable folks on this site who up to now have been very helpful. I am not as knowledgable about these things, as many here are.

The end result is to aid myself and others in correctly purchasing HT systems, whether speakers and receiver and/or amplifier and processor equipment to match my/our needs. As I am about to spend a fairly large amount of money on this purchase, I need to know how these particular electronics components will work together.

The technical information and system parameters that I brought back to this site were brought forward to correct the inaccurate information I had posted earlier in regards to the Denon 3805.

With your help and theirs I possibly avoided purchasing equipment that would not have matched my expectations. I would like to thank all those who provided their input in this matter.

Thanks,
Troy "winterpeg"