Power amplifiers, Advanced direct energy mos fet power amp, Wide-range linear circuit amp – Pioneer Stereo System User Manual

Page 24: Transformer stabilizer

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46

DIMENSIONS

M-10X

A-35R

A

4-5/16"

95 mm

3-3/4"

B

3/4"

19 mm

3/4"

C

1-3/8"

40 mm

1-9/16"

D

13-13/16"

340 mm

13-3/8"

E

1/8"

20 mm

13/16"

F

11-3/8"

261 mm

10-1/4"

G

2-1/8"

54 mm

2-1/8"

H

7-1/8"

172 mm

6-3/4"

I

2-3/16"

35 mm

1-3/8"

J

K

16-9/16"

420 mm

16-9/16"

L

5"

114 mm

4-1/2"

M

108.8 mm

18.6 mm

34.3 mm

351.4 mm

3.9 mm

289.1 mm

53.3 mm

180.7 mm

54.9 mm

420 mm

127.4 mm

319.1 mm

12-9/16"

307 mm

12-1/16"

N

ø55 mm

ø2-3/16"

O

P

A-35R

REMOTE CONTROL

PHONO

TUNER

CD

LINE/

SURROUND

BACK

TAPE1/CD-R/MD

TAPE2 MONITER

REC

PLAY

REC

PLAY

IN

IN

IN

IN

OUT

IN

OUT

IN

L

R

L

R

SPEAKERS

B

R

L

R

L

A

CONTROL

OUT

AC INLET

INPUT

L

R

R

L

SPEAKERS

CONTROL

IN

AC IN

REAR PANELS

A-35R

M-10X

Advanced Direct Energy MOS FET Power Amp

Advanced Direct Energy MOS FETs are simply high-
performance devices. Working with Pioneer's Wide-Range
Linear Circuit technology, they feature reduced power
consumption without sacrificing power output. Moreover,
Pioneer's MOS FETs help achieve a flat damping factor across a
wide audio spectrum, a wide frequency range, and a higher
accuracy at ultra high frequencies while improving power
linearity.

Wide-Range Linear Circuit Amp

The Wide-Range Linear Circuit features a superior open-loop
gain response. This means that, with the use of only a nominal
amount of feedback and a simple one-pole filter, the circuit
applies NFB (Negative Feedback) at high stability for
frequencies over a wide range, in order to minimize distortion.
Moreover, since its output impedance is flat and low over an
extended range, the circuit's rejection of external noise is
improved.

Transformer Stabilizer

The heavy, high-capacitance power transformer is doubly
secured to the chassis — by a stabilizer and an additional frame.
This elaborate construction improves the dynamic stability,
rigidity and insulation characteristics of the chassis, leading to
improved sound quality.

SB (Surround Back) Mode (M-10X/A-35R) and
MR/MS Capability (A-35R)

Pioneer Elite receivers feature 7.1-channel THX Surround EX
and Dolby Digital Surround EX. But even if your Pioneer
Surround EX receiver comes with amplifiers for 5.1 channels,
it's simple to upgrade it to the full glory of 7.1-channel sound.
Just connect the M-10X to your receiver to drive the SBL and
SBR (Surround Back Left and Right) channels. You can
remotely turn on and off the M-10X as you do so with the
receiver by using SR connections.

The A-35R is functionally flexible. It can be used in a

Surround EX system to drive SBL and SBR channels, as part of
a Multi-Room/Multi-Source Remote Control system, or as the
center unit of a secondary hi-fi system that includes a source
player such as a CD player.

Comparison of Linearity: Bipolar Transistor vs. MOS FET

-1

0

1

2

3

4

5

6

7

0

2

4

6

8

10

12

14

16

18

20

Id/Ic (A)

Bipolar Transistor
(Ic Max. 15A)

Typical MOS FET
(Id Max. 12A)

Hex MOS FET
(Ic Max. 28A)

vgs/vbe(V)

SURROUND
BACK FIELD

LOW FREQUENCY

EFFECT

SURROUND FIELD

LEFT

PRESENCE FIELD

Front: Forms the basis of a sound field as
the system's main channels.
Center: Clearly localizes dialog and vocals.

Surround Back: Ensures continuity of surround sound,
adding depth to the soundstage.

SURROUND FIELD

RIGHT

Subwoofer: Enhances suspense and psychological
tension with low-frequency sound effects.

Surround: Enhances surround sound by adding depth to
the sound field and emphasizing the sense of motion.

Center

Subwoofer

Right

Left

Surround Back

Surround Back

Surround
Left

Surround

Right

DVD Player

AV Receiver with Built-in

THX Surround EX Decoder

Surround Back Output

Additional Amp

for Surround Back

Connection Diagram (Conceptual) of

THX Surround EX-Compatible AV Amp

POWER AMPLIFIERS

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