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400M Neo 

Series

 

 

Specifications 

 

Configuration  

 Fully Balanced Differential, Mono 

Power Supply Transformer 

 400VA 

Power Supply Capacitance  

85,000μF 

Class Of Operation 

 A/AB 

Input Impedance 

 47,500

Ω

 

Input Sensitivity    

 800mV  

Output Device Type 

 Bipolar 

Output Power @ 8

Ω

 

 400 Watts 

Output Power @ 4

Ω

  

 650 Watts 

Frequency Response 

 10Hz – 0/-3.0dB 

Output Impedance 

 0.01

Ω

 

Damping Factor   

 > 800 

Gain 

 36dB  

Signal-to-noise Ratio 

 > 106dB @ full power 

Maximum Output Voltage 

 60 Volts 

Slew Rate 

 60V/μs 

Maximum Current – Peak / Continuous 

 56 amperes  / 26 amperes 

Intermodulation Distortion 

 Unmeasureable 

Total Harmonic Distorition  (20Hz-20kHz @ 1W)  

 < 0.02% 

Total Harmonic Distorition  (20Hz-20kHz @ 125W)  < 0.05% 

Power Consumption @ idle 

 36 Watts 

AC Power Requirements 

 120V / 60Hz or 240V / 50Hz 

Shipping Weight 

 33 lb. / 15 Kg. 

Dimensions  (W x H x D, inches / cm.) 

 16.9 x 3.5 x 14.0 / 42.9 x 8.9 x 35.6 

 

Balanced Pin Assignment:

 

Pin 1  

 Ground 

Pin 2  

 Positive 

Pin 3  

 Negative 

 

NOTE:

    If you require the RS-232 codes for your 

Nēo 400M

, please visit the "Contact Us" page 

              and complete the "Information request" form on our website at 

www.simaudio.com

 
 
 
 

 

 

12 

 

Fuse Replacement: 

 120V version uses a 8A fast blow  (3AG) 

 

 230V version uses a 4A  fast blow  (3AG) 

Summary of Contents for 400M Neo Series

Page 1: ...400M Series Mono Power Amplifier Owner s Manual ...

Page 2: ...400M Neo Series ...

Page 3: ...n or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus Unplug mains cord during transportation 11 Only use attachments and accessories specified by the manufacturer 12 Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combin...

Page 4: ...per voltage Both the shipping box and rear panel serial number label will indicate the correct voltage Use of any other voltage will likely damage the unit and void the warranty 3 AC extension cords are NOT recommended for use with this product The mains plug of the power supply cord shall remain readily accessible 4 NEVER use flammable or combustible chemicals for cleaning audio components 5 NEVE...

Page 5: ... 7 Installation Placement 7 Rear Panel Layout 8 Connecting the Nēo 400M 9 Balanced Operation 9 Operating the Nēo 400M 10 Remote Operation 11 Specifications 12 www simaudio com Simaudio Ltd 1345 Newton Road Boucherville Québec J4B 5H2 CANADA Date Code 20150203 ...

Page 6: ...th the goal of faithfully capturing these elusive qualities The information contained in this manual is subject to change without notice The most current version of this manual is available on our official website at http www simaudio com Your Nēo 400M Mono Power Amplifier incorporates many significant design features to achieve its world class level of performance This is an abbreviated list of t...

Page 7: ...umber Installation Placement The Nēo 400M Mono Power Amplifier requires reasonable ventilation to maintain an optimum and consistent operating temperature especially since it will radiate heat when driven hard Consequently it should be placed in a location with empty space around it for proper heat dissipation You should never place another component on top of this integrated amplifier As well it ...

Page 8: ...uired ONLY when using the single ended RCA input When you decide to switch to single ended input mode you must reinstall the XLR jumper between pins 1 and 3 exactly as shown below The left side of the rear panel has a pair of 12 Volt triggers each on a 1 8 mini jack one input and one output the latter for use if you need to daisy chain a second power amplifier on the same trigger circuit Immediate...

Page 9: ... your system 3 Connect the supplied AC power cable to the IEC receptacle located on the amplifier s rear panel Ensure that the AC wall outlet you use has a functioning ground For the best sonic performance it is preferable that you plug your 400M directly into a dedicated AC outlet and avoid using an extension cord If you have the time and willingness consider installing a superior quality AC wall...

Page 10: ...s power up your preamplifier prior to powering up your 400M As well always power down your 400M prior to powering down your preamplifier Troubleshooting Your Nēo 400M Mono Power Amplifier is equipped with a self diagnostic system that will automatically shut itself down when it detects either DC direct current or it enters into thermal protection mode due to overheating When either of these situat...

Page 11: ...gger output on the 350P is connected to the 12V trigger input on the top 400M using a 1 8 mini jack cable The 12V trigger output from this 400M connects to the 12V trigger input on the bottom 400M also using a 1 8 mini jack cable When you turn on the 350P using a remote control or its Standby button both 400M s will turn on automatically The same rule applies when you put the 350P into Standby mod...

Page 12: ...m Current Peak Continuous 56 amperes 26 amperes Intermodulation Distortion Unmeasureable Total Harmonic Distorition 20Hz 20kHz 1W 0 02 Total Harmonic Distorition 20Hz 20kHz 125W 0 05 Power Consumption idle 36 Watts AC Power Requirements 120V 60Hz or 240V 50Hz Shipping Weight 33 lb 15 Kg Dimensions W x H x D inches cm 16 9 x 3 5 x 14 0 42 9 x 8 9 x 35 6 Balanced Pin Assignment Pin 1 Ground Pin 2 Po...

Page 13: ...Owner s Manual 13 ...

Page 14: ...400M Neo Series 14 ...

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