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BasX A-400Z

 Features

The BasX A-400Z Zone Distribution Amplifier is an audio distribution amplifier that combines two 

powerful channels of high-quality audio amplification with four separate relay controlled pairs of 

speaker outputs. This makes the A-400Z the ideal choice for driving two pairs of 4 Ohm speakers, 

or up to four pairs of 8 Ohm speakers, in different zones. And, because the A-400Z is designed 

to work with loads as low as 2 Ohms, and is stable into even 1 Ohm loads, it is also the perfect 

amplifier to pair with difficult to drive loads like certain electrostatic loudspeakers. The A-400Z 

also features a built-in 80 Hz high-pass filter, avoiding the need for a separate crossover if you use 

it in a system with a subwoofer. 

 Some of The Features of the BasX A-400Z include: 

•  True audiophile-quality sound 

- As with all of our amplifiers, the BasX A-400Z was designed 

first and foremost to sound superb in a wide variety of audio applications.

•  Great sounding Class A/B output stage 

- ensures smooth detailed sound, and incredibly 

natural imaging, without a trace of harshness or strain.

•  High-current output capability 

- Each channel of the A-400Z is able to drive combined loads 

as low as 2 Ohms, and is stable into loads as low as 1 Ohm, which makes it ideal for driving 

multiple pairs of speakers in different zones, or for driving difficult to drive loads like low-

impedance electrostatic loudspeakers. 

•  Full-sized speaker outputs - 

Four sets of full-sized five-way binding posts, each set 

controlled by its own relay, and operated by convenient front-panel pushbuttons. 

•  Audiophile-grade fault protection

 - entirely transparent under normal conditions, yet 

protects the amp and your other equipment from all common fault conditions. 

•  Buffered line-level output - 

for connecting additional stereo amplifiers or powered 

subwoofers. 

•  Rear panel Master Volume control - 

enables you to set the gain on the A-400Z to match 

your requirements and other equipment.

•  Switchable high-pass filter - 

A switchable 80 Hz high-pass filter allows the A-400Z to operate 

full range, or to work seamlessly with one or more powered subwoofers.

•  Remote trigger input and output

 - allow the A-400Z to be turned on by trigger-enabled 

equipment, and to activate other trigger-enabled equipment.

•  Top quality parts and construction throughout

 - promise years of reliable service.

•  All-metal chassis and faceplate 

- The heavy steel chassis and aluminum faceplate on the 

A-400Z offer both strength and rugged good looks.

•  Universal AC line voltage operation -

 The BasX A-400Z will operate on either 115 VAC or  

230 VAC, at 50 Hz or 60 Hz, and automatically detects and switches to the correct line voltage. 

•  Standard IEC power inlet -

 fits all standard and audiophile IEC power cables.  

•  Fully three year warranty

 - ensures that you’ll be able to enjoy your A-400Z for years to 

come. 

You can find more information about the BasX A-400Z on our website at www.emotiva.com.

Summary of Contents for BasX A-400Z

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Page 3: ...UNIT REFER ALL SERVICE TO QUALIFIED SERVICE PERSONNEL Do not install the A 400Z near or above any heat sources such as radiators heating vents or other apparatus that produce heat Do not block any ven...

Page 4: ...r A 400Z by qualified service personnel if any of the following occur 1 The power supply cord or the plug has been damaged 2 Objects or liquid have fallen or spilled into the vents 3 The unit has been...

Page 5: ...ibution Amplifier 1 Introduction 3 About This Manual 4 Features 5 Unpacking 6 BasX A 400Z Front Panel 7 BasX A 400Z Rear Panel 8 Quick Start 10 Connections 11 Care and Maintenance 12 Specifications 13...

Page 6: ...Page 2 BasX A 400Z...

Page 7: ...tts RMS channel into 8 Ohms 150 watts RMS channel into 4 Ohms and 250 watts RMS channel into 2 Ohms with an extremely low noise floor and vanishingly low distortion The A 400Z has four separate pairs...

Page 8: ...short and direct as possible Even if you re an expert user you will probably find some interesting information and useful suggestions If you re really in a hurry to get started please read the Quick...

Page 9: ...drive loads like low impedance electrostatic loudspeakers Full sized speaker outputs Four sets of full sized five way binding posts each set controlled by its own relay and operated by convenient fron...

Page 10: ...ther issues when you unpack it please contact Emotiva immediately Gently remove your A 400Z from the packing carton and remove all wrappings and shipping material It is important to save the box and a...

Page 11: ...In order for the A 400Z to operate the rear panel AC Power Switch must first be turned On 4 Zone Push Buttons one per output zone Internally the A 400Z is a stereo amplifier capable of driving very lo...

Page 12: ...vel Unbalanced RCA Inputs Connect the stereo audio signal from your source to the stereo unbalanced RCA line level inputs on the A 400Z 4 Speaker Terminals one stereo pair per zone The A 400Z has a se...

Page 13: ...s used in a system with a subwoofer the High Pass Filter switch is typically set to the High Pass position applying an 80 Hz high pass filter to the signal provided to the main speakers by the A 400Z...

Page 14: ...cation for your A 400Z Connect your A 400Z to a signal source Connect one pair of speaker outputs on the A 400Z to a pair of speakers 4 ohm or 8 ohm using reasonably heavy gauge speaker wires at least...

Page 15: ...re to remove the jumpers on the input panel of each speaker Failure to remove these will damage your amplifier Connecting an input source to your A 400Z Connect a stereo input source to the Low Level...

Page 16: ...should be cleaned gently with a soft rag If something sticky gets on the front panel or case of the A 400Z it should be cleaned with a mild cleaning solution applied to a soft rag followed by wiping...

Page 17: ...20 kHz THD 0 2 into 8 Ohms 150 watts RMS channel at 1 kHz THD 0 02 THD into 4 Ohms 150 watts RMS channel from 20 Hz 20 kHz THD 0 2 into 4 Ohms 250 watts RMS channel at 1 kHz THD 0 02 THD into 2 Ohms...

Page 18: ...upply Linear power supply with heavy duty toroidal transformer Power Requirements 115 VAC or 230 VAC at 50 Hz or 60 Hz automatically detected Protection The A 400Z is protected against excessive opera...

Page 19: ...within the Term of the Warranty A claim shall not be valid and Emotiva has no obligation related to the claim if it is not made within the Term and if it is not made in strict compliance with the req...

Page 20: ...controls by user EMOTIVA SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING FROM OR RELATED TO ANY DEFECTS IN OR DAMAGES TO ITS PRODUCTS SOME STATES DO NOT ALLOW THE EXCLUSION OR...

Page 21: ...you do not have the original Emotiva Audio packaging please check with our sales department to purchase replacement shipping cartons How does the Warranty and service apply to international orders Th...

Page 22: ...ate to the best of our knowledge at the time of publication In keeping with our policy of ongoing product improvement we reserve the right to make changes to the design and features of our products wi...

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