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CONTROL AMPLIFIER C-700u

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5.   External pre-input terminal  

(EXT PRE IN)

RCA terminal to input output signals from an external 
pre-amplifier or an AV amplifier
This terminal is connected to unbalanced output terminal 
directly and outputs the signal connected to ext pre in.
External pre-input signals are not affected by the volume 
control of this unit.

6.   Remote output terminals  

(REMOTE OUT)

If a power amplifier (e.g. M-700u) equipped with a dedicat-
ed remote input terminal is connected to this remote output 
terminal with a dedicated remote cable, the power of the 
power amplifier provided the signal can be turned on and 
off by the operation switch of this unit.
ON signals from the remote output terminals are transmit-
ted in a certain period of time after pressing the operation 
switch of this unit. Therefore, the power amplifier provided 
the signal is activated after the time elapsed that consists of 
the muting time of the power amplifier and this transmission 
delay time.
The remote output terminals 1 and 2 can turn on and off 2 
units of power amplifiers at the same time.
Refer to the owner’s manual of a signal-receiving power 
amplifier for available operation settings of the signal-receiv-
ing power amplifier.

7.   AC inlet (AC IN)

Connects the accessory power cable.
The power shall be supplied from a household wall socket.

8.   Main power switch (MAIN POWER)

Turns this unit to the standby state.
When this switch is set to ON, the standby indicator on the 
front panel lights up and shows that this unit turns to the 
standby state.
When this switch is set to OFF, the standby indicator on the 
front panel turns off to show that the main power is turned 
off.

9.   Balanced output terminals/OUTPUTS 

(BAL LINE-1, BAL LINE-2)

XLR connector terminal to output balanced audio signals 
from this unit
Connect these terminals to a balanced input of an output 
device such as a power amplifier with a balanced cable.
Audio output signals are selected with the output mode se-
lection switch.
BAL LINE-1 and BAL LINE-2 are equivalent in quality.
Factory default output mode: Unbalanced (UNBAL)

10.  Signal ground (ground terminal) 

(SIGNAL GROUND)

Ground terminal for devices to be connected to this unit.
This terminal is used not for safety but for noise reduction 
when other devices are connected.

11.  Balanced input terminals/INPUTS 

(BAL LINE-1, BAL LINE-2)

XLR connector input terminal to receive balanced audio sig-
nals of a line level.
Connect these terminals to a balanced output of an input 
device such as a CD player with a balanced cable.
Incoming audio signals are selected with the input selector 
and delivered.
BAL LINE-1 and BAL LINE-2 are equivalent in quality.

Summary of Contents for C-700u

Page 1: ...Owner sManual CONTROL AMPLIFIER C 700u...

Page 2: ...Contents Precautions 1 Features of This Unit 2 Names and Functions 4 Connections 12 Operations 16 How to use Remote Control 18 Block Diagram 24 Specifications 27 Before Asking for Repair Services 28...

Page 3: ...equately connected noises including hum may be generated resulting in an adverse S N ratio The sound is not generated shortly after the power supply is turned on This amplifier is equipped with a time...

Page 4: ...the first stage is 4 parallelized and the second stage is con nected with Darlington Due to these improvements the low impedance and high S N ratio of the transmission circuit have become possible In...

Page 5: ...minal manufactured by Neutrik allows even a high perfor mance line cable with large plug to be connected Remote control RA 22 The remote control is encased in aluminum Tactile switches will satisfy us...

Page 6: ...ich are located on the rear panel Input transition by rotating clockwise LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 BAL LINE 1 BAL LINE 2 LINE 1 Input transition by rotating counterclockwise LINE 1 BAL LINE 2...

Page 7: ...pre amplifier or the like equipped with the sound volume adjustment function After checking the sound through the speakers with volume lowered adjust the volume to your favorite level When changing t...

Page 8: ...makes the low frequency range enhanced and rotating this control counterclockwise makes the low frequency range attenuated This control does not function when the line straight switch is set to ON 12...

Page 9: ...CONTROL AMPLIFIER C 700u 7...

Page 10: ...on the remote control is set to ON 4 Balance indicator BAL Lights up when the balanced output terminal is selected for the output mode 5 Standby indicator STAND BY Lights up when the main power switc...

Page 11: ...n the external pre switch is set to ON 11 Line straight indicator LINE STRAIGHT Lights up when the line straight switch is set to ON When the line straight switch is set to ON the loudness function ca...

Page 12: ...function volume control function or LR balance function This output terminal can be toggled on and off with use of the preset function of the remote control Factory default Rec out on 3 Monitor input...

Page 13: ...AC inlet AC IN Connects the accessory power cable The power shall be supplied from a household wall socket 8 Main power switch MAIN POWER Turns this unit to the standby state When this switch is set...

Page 14: ...12 Connections Normal stereo playback CD SACD PLAYER L R L R L R L R L R POWER AMP 1 POWER AMP 2 L R L R L R L R SPEAKER SYSTEM 1 L R SPEAKER SYSTEM 2 L R REMOTE REMOTE CD SACD PLAYER RECORDER L R...

Page 15: ...lifier Connect the remote input terminal of a power amplifier such as Luxman M 700u to the remote output terminal of this unit with the dedicated remote cable no polarity attached to the power amplifi...

Page 16: ...14 Connections External pre playback L R POWER AMP 1 POWER AMP 2 SPEAKER SYSTEM 1 L R SPEAKER SYSTEM 2 L R REMOTE REMOTE AV AMP PRE AMP L R L R...

Page 17: ...alization of sound images is deteriorated and proper play back is not acquired If the ground side of pin plug cable is floating it may cause generation of noises like hum deterioration of S N ratio Be...

Page 18: ...ntrol is set to the center position How to operate the tone control This unit has the tone control function for the low frequency and high frequency ranges The low frequency range type works in the 30...

Page 19: ...r 5 seconds or more and press the dimmer switch once while holding down the operation switch That s all for memory reset Factory default Item Default INPUT LINE 1 OUTPUT MODE UNBALANCE BAL PHASE INPUT...

Page 20: ...erating state turns the unit to the standby state 2 Input selector LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 BAL 1 BAL 2 Selects the unbalanced input terminal or balanced input ter minal both of which are lo...

Page 21: ...nit will be on mute 6 External pre switch EXTERNAL PRE Input selector switch to select the external pre input termi nal EXT PRE on the rear panel ON Outputs sound signals connected to EXT Pre terminal...

Page 22: ...nced output and the display turns to 3 and 2 7th line of A Press or again to turn the phase setting back to 3 and 2 8 Press the ENTER switch to set the step back to the step 2 to enable the BAL LINE 1...

Page 23: ...CONTROL AMPLIFIER C 700u 21 PRESET ENTER ENTER ENTER PRESET PRESET ENTER ENTER PRESET PRESET ENTER PRESET ENTER ENTER PRESET PRESET PRESET PRESET PRESET...

Page 24: ...ghts up when the loudness switch is on When the line straight switch is set to ON this switch does not function 12 Line straight switch LINE STRAIGHT This switch is used to increase the purity of the...

Page 25: ...s shown in the illus tration on the battery case in consideration of the polarity and 3 In the reverse order of battery cover removal put the battery cover back to the opening of the remote control an...

Page 26: ...R 1 2 3 1 2 3 1 2 3 1 2 3 INPUT SELECTOR STRAIGHT MONITOR STRAIGHT L R L R L R TONE CONTROL TONE CONTROL L R BAL UNBAL UNBAL BAL PHASE INVERT XLR IN LECUA 1 LECUA 2 LECUA 1 LECUA 2 ODNF 1 ODNF 2 REG R...

Page 27: ...10dB FROM INPUT SEMICONDUCTOR SWITCH SEMICONDUCTOR SWITCH 0dB TO OUTPUT DIFFRENTIAL AMP ATTENUATOR CONSTRUCTION ATTENUATOR CONTROL B1 LECUA1000 ATTENUATOR AMP EACH CHANNEL REG ODNF INPUT MUTE B2 11dB...

Page 28: ...26 Block Diagram REGULATOR FOR AMP FROM POWER SUPPLY POWER SUPPLY B B FROM POWER SUPPLY RECTIFIER RECTIFIER RECTIFIER FOR AUDIO FOR ACCESSORIES FOR MICROCOMPUTER GND GND...

Page 29: ...LINE 0 0 1 dB 1 V output 20 Hz 20 kHz load 50 k 0 3 0 dB 1 V output 5 Hz 120 kHz load 50 k BAL LINE 0 0 2 dB 1 V output 20 Hz 20 kHz load 100 k 0 3 0 dB 1 V output 5 Hz 80 kHz load 100 k LINE BAL LIN...

Page 30: ...of the power amplifier to adjust the sound vol ume The input selector is not set to the source to played back Set the input selector to the source to played back The connected output terminal does no...

Page 31: ...straight switch is set to ON Set the line straight switch to OFF The external pre switch does not work To prevent malfunction holding down for approximately 1 second shall be required for switching b...

Page 32: ...LUXMAN CORPORATION JAPAN AG00987E34A Printed in China...

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