Denon PMA-2000 IV R

[gus6464]

I just heard this thing at a store hooked up to some gigantic Phase Tech towers and it was a beast. It is a 2ch integrated that weighs 52lbs. The chassis on this thing makes it feel like a tank. The specs say it only outputs 80Wx2 @8ohms but it has to do more than that by the shier weight of the power supply.

 

[dpnaugle]

Why do you make me read this. Do you mean like 160w@4ohms

 

[gus6464]

Why do you make me read this. Do you mean like 160w@4ohms

It does do 160w@4ohms. The point is that wattage rating is most likely very conservative by the shear weight of it.

 

[Seth=L]

I am surpised they didn't use toroids.

I do like how they make it mainly an amplifier. A large portion of the inside is dedicated to output amplification unlike many other integrated amplifiers.

 

[gus6464]

I am surpised they didn't use toroids.

I do like how they make it mainly an amplifier. A large portion of the inside is dedicated to output amplification unlike many other integrated amplifiers.

Seth,

How much wattage do you think this thing can put out in the real world? I mean it weighed more than most 7.1 receivers but it is still rated at 80Wx2@8ohms. Ohh yeah the sales guy also told me that denon is releasing a new line of 2ch separates this year for the value sector. He told me to expect same build quality as this one but at a lower price. I guess they want to compete with emotiva and outlaw?

 

[Seth=L]

That I cannot say, since the amplifier's power cannot be determined by weight alone. If I had to make an estimation, if say a typical 25 pound 100 watt x 5 receiver was rated on the same basis as the Integrated amplifier you would have specifications that more closely resemble that of H/K. If you used typical receiver ratings, this thing would be rated for 150 watts per channel more than likely (all best guess).

Another strange thing, is this a true dual mono design, because I only see 2 capacitors. Is this thing Class A/B or Class A?

 

[gus6464]

That I cannot say, since the amplifier's power cannot be determined by weight alone. If I had to make an estimation, if say a typical 25 pound 100 watt x 5 receiver was rated on the same basis as the Integrated amplifier you would have specifications that more closely resemble that of H/K. If you used typical receiver ratings, this thing would be rated for 150 watts per channel more than likely (all best guess).

Another strange thing, is this a true dual mono design, because I only see 2 capacitors. Is this thing Class A/B or Class A?

I have no idea. These are the specs from their site.

Power Amplifier Section
Rated Output Power.......80W + 80W (8ohms, 20Hz, - 20kHz, THD 0.07 %)
160W + 160W (4ohms, DIN, 1kHz, THD 0.7 %)
Total harmonic distortion 0.01% (-3dB at rated output 8ohms)
Input sensitivity/input inpedence
P. DIRECT....................0.9 V/ 47 kohms
Amplifier factor.............29dB

http://usa.denon.com/PMA-2000IVRLit.pdf

Edit: I found this at the crutchfield website and it looks like it is a dual mono design.

To ensure consistently stellar sound, Denon's engineers have poured meticulous care into every aspect of the PMA-2000IVR's design and construction. First and foremost, an ultra-high-current UHC-MOS single push-pull circuit amplifies your music with a perfect balance of power and precision. It's capable of conveying the most delicate musical nuances while delivering 3 to 10 times the peak current of conventional MOSFET amplifiers. The amplifier block's twin monaural configuration prevents any possible interference between the left and right channels.