Pioneer Stereo System manual Poweramplifiers, Wide-RangeLinear Circuit Amp, Transformer Stabilizer

POWERAMPLIFIERS

■ DIMENSIONS		■ REMOTE CONTROL
M-10X	A-35R

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.

Comparison of Linearity: Bipolar Transistor vs. MOS FET

20
	Hex MOS FET
18	(Ic Max. 28A)

	16		Bipolar Transistor
			(Ic Max. 15A)
	14			Typical MOS FET
	12			(Id Max. 12A)
(A)	10
Id/Ic
	8
	6
	4
	2
-1	0 0	1	2	3	4	5	6	7
				vgs/vbe(V)

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.

LOW FREQUENCY	PRESENCE FIELD
EFFECT
	Front: Forms the basis of a sound field as
Subwoofer: Enhances suspense and psychological	the system's main channels.
tension with low-frequency sound effects.	Center: Clearly localizes dialog and vocals.

SURROUND FIELD

LEFT

SURROUND

BACK FIELDSURROUND FIELD

RIGHT

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

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

Connection Diagram (Conceptual) of

THX Surround EX-Compatible AV Amp

DVD Player	Center
	Subwoofer
Left	Right

AV Receiver with Built-in	Surround	Surround
THX Surround EX Decoder
	Left	Right
Surround Back Output
Additional Amp	Surround Back	Surround Back
for Surround Back

A	108.8 mm	4-5/16"		95 mm		3-3/4"
B	18.6 mm	3/4"		19 mm		3/4"
C	34.3 mm	1-3/8"		40 mm		1-9/16"
D	351.4 mm	13-13/16"	340 mm			13-3/8"
E	3.9 mm	1/8"		20 mm		13/16"
F	289.1 mm	11-3/8"	261 mm			10-1/4"
G	53.3 mm	2-1/8"		54 mm		2-1/8"
H	180.7 mm	7-1/8"	172 mm			6-3/4"
I	54.9 mm	2-3/16"		35 mm		1-3/8"
J	–	–			–		–
K	420 mm	16-9/16"	420 mm			16-9/16"
L	127.4 mm	5"	114 mm			4-1/2"
M	319.1 mm	12-9/16"	307 mm			12-1/16"
N	–	–	ø55 mm			ø2-3/16"
O	–	–			–		–
P	–	–			–		–

A-35R

■REAR PANELS

M-10X

		SPEAKERS	AC IN
INPUT	R		L
L			CONTROL
			IN
R

A-35R

							R	SPEAKERS	L
								B
									AC INLET
PHONO	TUNER	CD	LINE/	TAPE1/CD-R/MD		TAPE2 MONITER
			SURROUND	REC	PLAY	REC	PLAY
			BACK
L							L
									CONTROL
									OUT
R							R
IN	IN	IN	IN	OUT	IN	OUT	R	A	L
							IN

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