Denon POA-A1HDCI User Manual download pdf (Page 2)

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Denon POA-A1HDCI

10 Channel Amplifier

Review Summary

Manufacturer: Denon Electronics

performance Rating: 5/5 Stars

Value Rating: 3/5 Stars

MSRP: $7,000

www.usa.denon.com

Pros

• Endlessarrayofconfigurationoptions

• Excellentsoundquality

• Hasnoproblemsdrivinglow

impedance speakers to reference

levels

Cons

• Uberexpensive

• Bulkyandheavy

Set-Up

“It’s got handles,” Jeff Talmadge, Product

Manager of Denon told me. “It should be

a breeze to carry…” what he didn’t tell

me was that the handles were on the back

panel of the unit and that I’d have to upright

row it up my flight of steps into my theater

room. I instead opted to carry it up the old

fashion way – bribing my neighbor with a

cold beer to help me carry it and install into

my Audiav Crystal A/V rack. The handles did

come in handy when pulling it into my rack

while my friend pushed from the front. Make

no mistake this amplifier is a two man install

job unless of course you’re a competitor on

the Strong Man show.

With an almost endless array of

configuration options, I had to really

think which options best suited my needs.

Thus I listed some of the most common

configuration choices highlighting the one I

used for my application.

Common Connection options:

5.1 Main Zone all channels bi-amplified

5.1 Main Zone all channels bridged

for up to 4x power to each channel

5.1 Main Zone, Zone 2 and Zone

3 stereo, with Zone 4 mono

7.1 Main Zone, Zone 2 stereo

and Zone 3 mono

7.1 Main Zone with Front left,

right and center speakers bi-amplified

7.1 Main Zone with Front speakers

bridged and Zone 2 mono

9.1 Main Zone and Zone 2 Mono

• 140wattsx7+50wattsx4into8ohms

(20-20,000 Hz) at 0.04% THD

• PowerOutput:

150wpcx10;8-ohms@0.05%THD+N/

300wpcx10,4-ohms@0.08%THD+N

• Monoblockamplifierconstructionwith

shortened audio signal paths and direct

mechanism grounding scheme

• 4largeE-corepowertransformersand

200,000uF total power supply capacitance

• 3AnalogVUpowermetersassignable

per channel

• AmpConfigurationoptions:fullyconfigurable

channel assignments

• AmplifierOperationalModes:bridgeable,

bi-wireable and bi-ampable

• SpeakerTerminals:highgrade5waybinding

post banana plug

• CompletelyConfigurableAmplifiers

• THXUltra2Certified

• ULRateddownto4-ohms

• LinkControlformatchingAVP-A1HDCI

pre/pro

• Dimensions(HxWxD):

11.1" x 17.1" x 20.9"

• Weight:132lbs

Specifications

Denon POA-A1HDCI

10 Channel Amplifier

Bi-Wire: When using speakers that have independent input terminals for the woofer

and tweeter drivers, this type of connection allows you to connect both terminals to

thesamechanneloftheamplifierviatheSpkAandSpkBWBTconnections.Themain

advantage to bi-wiring is lowering the effective wire gauge. There are minimal benefits

to this connection scheme and we usually recommend going with lower gauge single

wired solutions instead.

Bi-Amp: When using speakers that have independent input terminals for the woofer

and tweeter drivers, this connection outputs one input signal from two amplifiers to

each woofer and tweeter connection. During this mode, the ten channel amplifier

becomes a 5-channel amplifier. This allows for a greater degree of isolation between

thedriversandbetteramplifiercontrol.Ultimatebi-amplifiedinstallationsinvolved

active crossover solutions but we’ve seen and heard benefits of passive bi-amplifying

assuming the amplifiers power supply is capable of such an installation.

Bridge Mode: This connection allows you to use two amplifier channels to output

opposite phase signals generated from one input signal. When you bridge an amplifier,

you effectively double the output voltage with can yield up to 4 times the rated output

power assuming the power supply can deliver that much current. This is a good idea

forapplicationsthat requirelots ofpowertoreachhighSPL’sbutits importantto

note that each amplifier effectively sees ½ the rated impedance of the loudspeaker

so if your speaker system is rated nominally at 4-ohms, be sure the amplifier is stable

for two ohm loads before bridging it. Never bridge an amplifier that isn’t designed

to do so!

Editorial Note on Amplifier Connection Type Definitions

1 2 3 4 5 6 7 8 9 10

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Denon POA-A1HDCI User Manual Page 2

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