Denon Pma-2500ne User manual

PMA-2500NE

INTEGRATED AMPLIFIER

Owner’s Manual

You can print more than one page of a PDF onto a single sheet of paper.

Contents Connections Playback Settings Tips Appendix

Front panel Rear panel

Remote control

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Index

Accessories 4

Inserting the batteries 5

Operating range of the remote control unit 5

Features 6

High quality sound 6

High performance 6

Part names and functions 7

Front panel 7

Rear panel 10

Remote control unit 12

Connections

Connecting speakers 15

Speaker connection 17

Bi-wiring connection 18

Connecting a playback device 19

Connecting a recording device 20

Connecting to a device with digital audio output connectors 21

Connecting a pre-amplifier 22

Connecting a PC or Mac 23

Connecting the power cord 24

Playback

Turning the power on 26

Selecting the input source 27

Adjusting the volume 27

Turning off the sound temporarily (Muting) 27

Adjusting the tone 27

Switching the display’s brightness 28

Playing CDs 29

Connecting and playing back from a computer (USB-DAC) 30

Connect and playback from a digital device (Coaxial/Optical) 39

Recording 40

Settings

Setting the Auto Standby mode 41

Turning Auto Standby mode off 41

Turning Auto Standby mode on 41

Contents Connections Playback Settings Tips Appendix

Contents

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Index

Tips

Tips 43

Troubleshooting 44

Appendix

D/A converter 50

Explanation of terms 50

Trademark information 52

Specifications 53

Index 56

Contents Connections Playback Settings Tips Appendix

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Thank you for purchasing this Denon product. To ensure proper operation, please read this owner’s manual carefully before using the product.

After reading this manual, be sure to keep it for future reference.

Accessories

Check that the following parts are supplied with the product.

Quick Start Guide CD-ROM

(Owner’s Manual)

Safety Instructions Power cord

Remote control unit

(RC-1207)

R03/AAA batteries

Contents Connections Playback Settings Tips Appendix

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Inserting the batteries

1Remove the rear lid in the direction of the arrow and

remove it.

2Insert two batteries correctly into the battery

compartment as indicated.

R03/AAA batteries

3Put the rear cover back on.

NOTE

0To prevent damage or leakage of battery fluid:

0Do not use a new battery together with an old one.

0Do not use two different types of batteries.

0Remove the batteries from the remote control unit if it will not be in use for long

periods.

0If the battery fluid should leak, carefully wipe the fluid off the inside of the battery

compartment and insert new batteries.

Operating range of the remote control

unit

Point the remote control unit at the remote sensor when operating it.

30°

Approx. 7 m

30°

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Features

High quality sound

0Advanced UHC-MOS Single Push-pull Circuit

The UHC-MOS FET is employed for the power amplifier output stage.

The steady current is 70 A and the instantaneous current is 210 A. The

operation stability affected by the temperature fluctuation is improved by

using the dual FET selected first stage for the voltage amplifier stage.

Furthermore, the phase property is stabilized up to the high range by

using the cascade bootstrap circuit.

0Power Supply

To make the most of the Advanced UHC-MOS Single Push–pull Circuit,

this powerful power supply consists of a LC mount twin transformer,

schottky barrier diodes that have high current capacity, and a custom

block type capacitor that is tuned for high-quality sound.

0Mechanical Ground

A chassis that has 6 discrete blocks shielded for each signal level and a

foot made of high density materials pursue the Mechanical Ground

concept, eliminating the influences caused by external vibration and

preventing vibration of the transformer, the internal vibration source,

from being transmitted to the amplifier circuit.

High performance

0Equipped with a USB-DAC function to support playback of high-

resolution sound sources

This unit supports the playback of high resolution audio formats such as

DSD (2.8/5.6/11.2 MHz) and PCM files up to 384 kHz/32 bits. It

provides high quality playback of high resolution files into this unit from a

computer via USB-B connection.

0DIGITAL AUDIO IN connectors (COAXIAL/OPTICAL)

You can play back PCM signals up to 192 kHz/24 bits by inputting digital

audio signals from an external device into this unit.

0Phono Equalizer

Even a user who is particular about analog records is satisfied because

the Phono Equalizer circuit for the FET input supports MM/MC.

0External Pre-amplifier Input

A EXT.PRE IN (External Pre-amplifier input) that can also be used for a

standalone power amplifier is equipped, useful for combining with the

audio system and home theater system, etc.

Contents Connections Playback Settings Tips Appendix

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Part names and functions

Front panel

ru Q0eqw

APower operation button (X)

This turns the power on/off. (v p. 26)

BPower indicator

This is lit as follows according to the power status:

0Power on : Green

0Standby : Off

0Power off : Off

0When the protection circuit is activated : Red (blinking)

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ru Q0e io

CRemote control sensor

This receives signals from the remote control unit. (v p. 5)

DANALOG MODE button

This turns the ANALOG MODE 1/2 on/off. (v p. 29)

EANALOG MODE indicator

This is lit as follows according to the ANALOG MODE status:

0ANALOG MODE 1/2 on: Green

0ANALOG MODE off: Off

FSOURCE DIRECT indicator

This is lit as follows according to the SOURCE DIRECT status:

0SOURCE DIRECT mode on: Green

0SOURCE DIRECT mode off: Off

GSOURCE DIRECT button

This turns SOURCE DIRECT mode on/off. (v p. 29)

HVOLUME knob

These adjust the volume level. (v p. 27)

IDisplay

This displays information such as the input source name, type of digital

audio signal and sampling frequency.

JInput source select knob (INPUT SELECTOR)

This selects the input source. (v p. 27)

NOTE

0When you set this unit’s input source to “EXT.PRE”, the main unit outputs at

maximum volume. Also adjustment of the volume balance and tone on the

main unit has no effect. Adjust the volume on the inputting devices before

playback.

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KHeadphones jack (PHONES)

Used to connect headphones.

Turn off speaker output when using headphones.

NOTE

0To prevent hearing loss, do not raise the volume level excessively when using

headphones.

LBASS control knob

This setting adjusts the volume level for the bass. (v p. 27)

MTREBLE control knob

This setting adjusts the volume level for the treble. (v p. 27)

NBALANCE control knob

This adjusts the balance of the volume output from the left and right

speakers. (v p. 27)

0b, c and d can be adjusted when 7 is off (SOURCE DIRECT mode is off).

Contents Connections Playback Settings Tips Appendix

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Rear panel

uio

tyerqw

AAnalog audio connectors (AUDIO IN)

Used to connect devices equipped with analog audio connectors.

0“Connecting a playback device” (v p. 19)

0“Connecting a recording device” (v p. 20)

BCARTRIDGE selection switch

Set this switch to MM or MC according to the type of cartridge used on

your turntable.

Contents Connections Playback Settings Tips Appendix

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tyer

uio

CSIGNAL GND terminal

Used to connect a turntable. (v p. 19)

DEXT.PRE IN connectors

Used to connect a pre-amplifier when this unit is used as a power

amplifier. (v p. 22)

The volume should be adjusted on the connected device.

ESpeaker terminals (SPEAKERS)

Used to connect speakers. (v p. 15)

FAC inlet (AC IN)

Used to connect the power cord. (v p. 24)

GAUDIO OUT connectors (RECORDER)

Used to connect the input connector of a recorder. (v p. 20)

HDIGITAL AUDIO IN connectors

Used to connect devices equipped with digital audio output connectors

and PC.

0“Connecting to a device with digital audio output

connectors” (v p. 21)

0“Connecting a PC or Mac” (v p. 23)

IIR control input/output connectors (IR CONTROL IN/OUT)

Used to connect Denon network audio players with an IR controller.

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Remote control unit

oOperating this unit

APower operation button (AMPLIFIER X)

This turns the power on/off (standby). (v p. 26)

BDIMMER button

This switches the brightness of the display. (v p. 28)

CANALOG MODE button

This turns the ANALOG MODE on/off. (v p. 29)

DMUTE button

This mutes the output audio. (v p. 27)

EVOLUME buttons (df)

These adjust the volume level. (v p. 27)

FINPUT SELECT buttons

This selects the input source. (v p. 27)

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oCD player operations

A Denon CD player can be operated.

APower operation button (X)

BDISC LAYER button

CCursor buttons (uio p)

DENTER button

ENumber buttons (0 – 9, +10)

FRANDOM button

GREPEAT button

HSystem buttons

0Skip buttons (8 / 9)

0Play/pause button (1 / 3)

0Fast-reverse/Fast-forward buttons (6 / 7)

0Stop button (n)

IDIMMER button

JMODE button

KCLEAR button

LPROGRAM button

MInformation button (INFO)

Contents Connections Playback Settings Tips Appendix

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oContents

Connecting speakers 15

Connecting a playback device 19

Connecting a recording device 20

Connecting to a device with digital audio output connectors 21

Connecting a pre-amplifier 22

Connecting a PC or Mac 23

Connecting the power cord 24

NOTE

0Do not plug in the power cord until all connections have been completed.

0Do not bundle power cords together with connection cables. Doing so can result in

humming or noise.

oCables used for connections

Provide necessary cables according to the devices you want to

connect.

Speaker cable

Audio cable

Optical cable

Coaxial digital cable

USB cable

Contents Connections Playback Settings Tips Appendix

Connections

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Connecting speakers

NOTE

0Disconnect this unit’s power plug from the power outlet before connecting the

speakers.

0Connect so that the speaker cable core wires do not protrude from the speaker

terminal. The protection circuit may be activated if the core wires touch the rear

panel or if the + and - sides touch each other. (“Protection circuit” (v p. 51))

0Never touch the speaker terminals while the power cord is connected. Doing so

could result in electric shock.

0Use speakers with impedances within the ranges shown below to suit how they

are used.

Speaker terminals

used on this unit

No. of connected

speakers

Speaker

Impedance

SPEAKERS A

(Standard

connection)

2 (one set) 4 – 16 Ω/ohms

SPEAKERS B 2 (one set) 4 – 16 Ω/ohms

SPEAKERS A and

SPEAKERS B 4 (two sets) 8 – 16 Ω/ohms

SPEAKERS A and

SPEAKERS B

(Bi-wiring

connection)

2 (one set) 4 – 16 Ω/ohms

oConnecting the speaker cables

Carefully check the left (L) and right (R) channels and + (red) and -

(white) polarities on the speakers being connected to this unit, and be

sure to connect the channels and polarities correctly.

Peel off about 10 mm of sheathing from the tip of the speaker

cable, then either twist the core wire tightly or terminate it.

Turn the speaker terminal counterclockwise to loosen it.

3Insert the speaker cable’s core wire to all the way into

the speaker terminal.

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4Turn the speaker terminal clockwise to tighten it.

Speaker terminal dimensions

8mm

5mm

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Speaker connection

This unit is equipped with two sets of speaker terminals (SPEAKER A and SPEAKER B). One set of speakers can be connected to each set of terminals,

and a total of two sets of speakers can be connected.

The same signal is output from the SPEAKERS A and SPEAKERS B terminals.

When only one set of speakers is to be connected, use either the SPEAKERS A or SPEAKERS B terminals.

wqwq

(R)(L)

wqwq

(R)(L)

SPEAKERS A SPEAKERS B

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Bi-wiring connection

This connection limits the effects of signal interference between the high range speakers (tweeters) and low range speakers (woofers), allowing you to

enjoy high quality playback.

When bi-wiring with bi-wireable speakers, connect the mid and high range terminals to SPEAKERS A (or SPEAKERS B), the low range terminals to

SPEAKERS B (or SPEAKERS A).

HIGH

LOW

HIGH

LOW

Speaker

(R)

Speaker

(L)

Remove shorting bar Remove shorting bar Remove shorting barRemove shorting bar

Contents Connections Playback Settings Tips Appendix

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Connecting a playback device

You can connect turntables, tuners, CD players and network audio players to this unit.

If you set this unit’s input source to “PHONO” and you accidentally increase the volume without having a turntable connected, you may hear a hum noise

from the speakers.

NOTE

0The earth terminal (SIGNAL GND) of this unit is not for safety grounding

purposes. If this terminal is connected when there is a lot of noise, the noise can

be reduced. Note that depending on the turntable, connecting the ground line may

have the reverse effect of increasing noise. In this case, it is not necessary to

connect the ground line.

0The PHONO input terminals are equipped with a short pin-plug. Remove this plug

to connect a record player. Store the removed short pin-plug in a safe place so as

not to lose it.

GND

AUDIO