Luxman M 700U Brochure

Page 1

M ~ 7 0 0 u STEREO POWER AMPLIFIER

Jan-b? H-zv.
Er mm
=l' ==

Operation switch

Input switch Display switch Power meter

STEREOIBTL selecfion switch Unblanced input terminal Remote inputtenninal

Phase inverter switch Signal ground terminal

SPECIFICATIONS

Rated output l20w v 120w (am/at stereo
210w + zlow (4mlat stereo
420w lam/at monaural

lnstantaneous max output 340w + a40w (l mint stereo
1,680WlZDJ/atmonaural

lnput sensItIvtty 1.1V/120W tan)
GAIN 29 0dB

lnpul Impedance Unbalanced slim
Balanced 34m

Frequency response 20Hz to 20kHz (+0. 70 ldls)

lHZ to 130m: (+0, 73 0 US)

Total harmunlc distortion rate 0 009% or less kHz/[KN
0 1% or less (20Hz to MHz/an)

S/N ralIo (lHFrA) itSdB

AmplmcalIen clrcutt ODNF A 0

Output configuratlcrl Blpolar 4rparallel Dushrpull
Power transrormer El type 550VA

Damping factor 350

Power ccnsumpbon 370w

new (under no slgnal)
0 4w (at standby)
External dlmenslbns MDlW) x 190m) x 4270)) mm
lront slde knob or 2mm and rear sIde
lermlnal or 38 mm Included In deptn

Net weignt 27 5kg

Accessorles Dedicated remote cable
Power cable

Speaker terminal wlcltn or Dart a 14mm or less

Supported leug tennlnal WIdtn or part in 7mm or more

dimension
fit,

~ conneotlon may nol he penonned
dapendrng on the snaps oi the
Valug terminal.

380mm

E
2
m
N
m
Balanced input terminal
Speaker terminal (R) AC inlet (AC IN) Speaker terminal (L)
lnhemal configuration
CONTROL AMPLIFIER
( _ 700 SPECIFICATIONS
_ . ' l l -
lnpul Sensitivlly/ Unbalanced 250mV/4skn . Egzfizgigseosflfixde
lanIl Impedance Balanced 250mV/s7kn , Record My
Output/Input Unbalanced rattng lwgon, max 1lV .Emma. lire-mum
Impedance Balanced ralin lVlSflD ax 11 5V . Line mm . Loudness
Frequency response 20Hz to 20kHz (4 1-18) . Volume upldawn . Mute ~ Zoom
5H: to 120m: (40 '73 13) Power consumption 28W
g... _ Total nannonlc d'lsturtlon Unbalanced 0.007% (ZOHZ to ZDkHz) 2 ow (at standby)
AW External dimenslons 440(wl x laatHl x 430(0) rnnI
S/N ratlc (IHFVA) Unbalanced lZSGB front side knob ol l7rnrn
m Balanced 12265 and rear slde termlnal
Vulume adjustment New LECUAtmm e614 mm Included m depth
) o 0 0 O F r Amplincatlon clrcuit DDNF 4 0 Net welsh! *4 6 kg
Max cnange amount of BAss eBdB at 10qu Accessories Remote control (RAezz)
lane central TREELE gEdE at 10kHz Power cable

LUXMAN

IAG House. 15/14 Glebe Road, Huntlngdon, Cambridgeshlre PEZQ 7DL. UK
Tel: +44 (0) 1480 452551 Fax: +44 to) 1480 4l3103 nttp://wwwl0xman.com

LUXMAN CORPORATlON, 1-3-1 Shinyokohama, Kouhoku-ku, Yokohama-Shh Kanagawa 222-0033, Japan
Tel' +81745747076980 Fax, +81745747076997 http://www.luxrnan.ccm

IAG reserves the right to alter the design and speclflcations without notice All rights reserved lAG Group Ltd
Luxman is a member of the lntemational Audio Group CodeiLN14-LL0004

& Safety Cautions

To ensure correct use of this product,

read the Owners Manual"prior to use.
Failure to follow all safeguards can result
In flre,e|ectric shock,or other accidents.

'Deslgn end spectticaticns are subject to change WItnobl nbttce

20M lZVHE M77000

STEREO POWER AMPLIFIER

M-700u

Page 2

I High-power 4-parallel module.

Longing dream comes true- ODNFamuii,ve.s-m4.o

A powerful drive circuit is necessary to amplify sound

F1 h ' d ' f ' ' d signals from a control amplifier with high fidelity and
ags 1p p e lgr e e 0 e X q L118 11: e S O u n to exploit the performance of various speakers. M-700u
has achieved the output of up to 840 W + 840 W (10)
instantaneously from the rated output of 120 W + 120 W
(80) and 210 W + 210 W (40). Speakers can be driven
with its sufficient power under any load conditions. More-

over, the BLT mode allows the user to use the unit as
a monaural amplifier with the rated output of 420 W
(80). A4-parallel push-pull structure With 3-stage Darl-
ington is used in this circuit to acquire such high power. High-power amplifierwim 4-parallel module,
The latest version. ODNF 4.0 circuit, that has achieved ODNF circuit, version 4.0

primary slew rate speed indicating the startup perfor- M-700u BLOCK DIAGRAM(POWER AMP)
m an in a n E mance by feeding back only distortion components.
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w-mm,
mm,
'2 n ,

u

i i/Z/

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ultra-wide bandwidth. and low level of distortion is
adopted for the amplifier ci uit, which is inherited from

M-900u. our top-end model. Precise reproduction of
a small sound signal has enhanced the elaborate
sound expression and the expressive capability of in ii
tranquillity. Setting up to 6 W With which sound range
can be practically and sufficiently acquired to the
Class A operation range, it has made its high power
consistent with sound expression of high density.

NF Is an abbrevlatlon for "Only Distortlon Negatlve Feedback".

I Large type of needle-type meter
A largerscale needlertype meter is adopted to
provide not only audible but also physical sen-
sation for the lively feeling of the music. The
electric bulb color of the LED illumination is the
result of our persistence in dignity and visibility
This meter can be switched in 3 steps With use
of the switch on the front panel as follows: Ope-
ration ON/Light ON ~> Operation ON/Light
OFF 4' Operation OFF/L'ght OFF' Needle-type meter With electric
power transformer bulb-colored illumination

i Large-capacity
power supply circuit

M-700u is equipped with high-performance El
type power transformer whose rated capacity
is as much as 550 VA with a reputation for its
tone quality full of dynamism including bass ranr
ge perseverance to support overwhelmingly
powerful power supply unit. A high level of reg-
ulation ability that is unshakable by any load
fluctuation has been achieved

M»700u, a power amplifier, is a new middle range model

Large-capacity El-type

that inherits our powerful drive circuit including the latest version, ,
l Low impedance transmission

In order to transmit the powerful drive force gener
rated by the large-scale output circuit without
any loss. super-thick Wires for major current
systems and large-capacity speaker relays with
low resistance in which 4 contacts are connec-
ted in parallel are equipped. Transmission of
thoroughly low impedance has been achieved.
and 350 of the damping factor has been acc-
omplished.

lGraolation cast-iron leg

A loopless chassis structure is used for the
cabinet to eliminate increased ground impe-
dance and the effect of generated magnetic
field Gradation castriron insulator legs are
attached to prevent resonance thanks to its
characteristics of that the metallic structure
becomes smaller from the center to the peri-
phen/ of the leg.

ODNF 4,0 circuit Whose distortion characteristics
and S/N performance have been significantly improved
and with which the top-end model,

M-900u, has been equipped and also including 4-parallel push-pull

structure with 3-stage Darlington to pursue Luxman's development Loeresistance speaker relay Gradation castriron insulator leg

philosophy for power amplifiers, "satisfying both high drivability I Large-capacity I Specially selected custom parts

block condenser
The combination of block capacitor with high-
capacity of 80,000pF (10,000pF x 8) whose
right and left channels are independent and a
power transformer configures highrinertia
power supply that offers both instantaneous
force and a sense of stability. This unit supports
the performance of M-700u from the bottom
and delivers the sound dynamism amazingly

M7700u consists of original custom parts.
considering the sound quality as the first
priority, such as resistances. capacitors,
even all wires, which have been generated
from Luxmans highly advanced know-how
and sensibility accumulated in producing
audio products for a long time. Those parts
have contributed to realizerich tone that

and sound quality of high density".
The output from 120 W/SQ to up to 840 WHO

instantaneously exploits the full potential of

speaker characteristics under any load conditions,

Custom-built large-capacity Lumen has pursued- Original custom parts

M-700u is a new-generation stereo power amplifier that block capacitor

combines richly expressive sound and high power II Beeline construction

The beeline construction is adopted, which makes the internal configuration of the power amplifier reasonable and also
makes the Wiring route shortest. The traditional wiring pattern of the substrate With use of copper foil of approx. 100um
in thickness allows highly pure signal transmission to be achieved.

without losing the music dynamismr