Axiom Home Page Forums General Discussion Home Theater Denon 3805 Bi-Amping

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This forum is getting a really bad rep at a lot of places

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If those places are Audio Asylum and Ecoustics and all the places where "anything is possible", then that's a good thing.

Like a Propagandhi album that gives the band a bad rep with the current administration, or an ACLU lobby that doesn't sit well with the Ku Klux Klan, that's pretty much a hallmark of achievement of a goal.

I don't do forums. I was intrigued by the professionals and advanced hobbiests that I first found here.

By the way, I had this argument with my brother tonight, on one hand he has done audio engineering (putting him on the cusp) and he's also a musician (who are mostly voodoo types) and it turned from "can an amp be warm/neutral/forward/bright/Irving" into "how I can force an amp to sound different by ensuring the limiter electronics kick in/selecting radically different gain stages/input sections on each of the two amps"

Bren R.

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he's also a musician (who are mostly voodoo types)

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Being an old guitar player I would agree with that. I had an old Fender amp from the late 70's that I swore up and down sounded better then my 5150 Peavey half stack. In the end I'm fairly sure I was wrong but it took me forever to get my head around it.

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Were they calibrated so they were both playing at the exact same dB level? If not, then of course they sounded different. If you're going to do a conclusive comparison, you have to make sure all your variables are minimized.

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As for people saying all amps sound the same, search out these forums and you will find your answer.

As for my little test. Yes both amps ran at the exact same DB level and both got calibrated. I'm not some kid who just fell off the truck you know! I take a lot of time when I'm playing with stuff and I try and make it as accurate as I know how. I posted awhile back about bi-amping a couple of Carver amps and got some negative reaction from a few. Funny part was soon as I posted that I was bi-amping via the correct method of using separate crossovers etc, everyone shut up. It just proved that a few who piped up that bi-amping doesn't do squat, didn't even know the basics behind doing it correctly. Hell I'm still waiting for somebody to tell me why 2 stereo amps sounded so bad in MONO? I have no idea and I still don't get why.................but anyway, I'm rambling and it's early and I need my Robin's coffee!

NH-that pocket protector thing was rude and an insult.
BrenR-the rosary bit was rude and an insult.

Now will both of you shut up?! GOD I'm sick of this.

Disclaimer-yes, I have played the game before. Yes, I am a hypocrite. Deal.

didnt someone ask something about bi-amping??

bigjohn

Yes, it was bi-amping (tube vs solid state) electrostatic speakers and cable matching for break-in and whether it mattered to use a warm or laid back amp, whether to use program audio from a Browns game in MP3 format or from a CNN report on Al-Queda in Ogg Vorbis format.

Bren R.

i think you almost got 'em all bren..

you didnt mention anything about the wait time..

bigjohn

Actually I never got into the tube vs everything else debate. I stayed clear of that one as I don't know enough about tubes to comment either way! But I have owned enough amps and receivers to have a basis for comparison so..........I speak!

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you didnt mention anything about the wait time..

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The wait time? EVERYONE'S on the same page there - I WANN'EM NOW!!!

Bren R.

Hey..........me again. I still can't get over this Parasound. Forgot the fact that it may or not have a nice warm sound to it but DAM does this thing have power reserves out the ying yang. I picked it up for a little under a grand and I kid you not, this thing has power to burn. I have always been a Parasound fan and this amp made me an even bigger fan. By the time I sold my HALO it was more or less pocket change to pay for the 2205A and what a difference from the HALO. Yes they more or less sound the same but you can sure tell the 2205A is pushing almost twice the power.

I have always been an amps over wattage guy but I'm curious, does the fact that this amp pushes over 60amps peak per channel have anything to do with what I keep calling the warm sound?

In case anyone cares, here are some specs on the amp: (If anyone is looking at going with a 5 channel separate, I strongly suggest giving this one a go!)

Continuous Power Output - Each Channel: 220 watts RMS x 5, 20 Hz - 20 kHz, 8 ohms, all channels driven; 300 watts RMS x 5, 20 Hz - 20 kHz, 4 ohms, all channels driven
Current Capacity: 60 amperes peak per channel
kVA Toroid power transformer with independent secondary windings for each channel, 150,000 µF power supply filter capacitance
Slew Rate: 130 V/µsecond
Power Bandwith: 5 Hz - 100 kHz, +0/-3 dB at 1 watt
Total Harmonic Distortion: < 0.03 % at full power
IM Distortion: < 0.03 %
TIM: unmeasurable
Dynamic Headroom: > 1.5 dB
Interchannel Crosstalk: > 80 dB at 1 kHz; > 60 dB at 20 kHz
Input Sensitivity: 1 V for 28.28 V, THX Reference Level; 1.5 V for full output
Input Impedance: 33 k ohms
S/N Ratio: > 118 dB, full power; > 96 dB, THX Reference
Level Damping Factor: > 1000 at 20 Hz
Power Consumption: 1500 watts
Dimensions: w 19" x h 7" x d 19 1/2", h 7 5/8" with feet
Net Weight: 85 lb.

http://www.parasound.com/products/amplifiers/hca2205atspecs.html