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1. Unpack ZB550 HSD cabinet, external power supply and AC cord, 

remote control and audio connecting cord.
2. Place cabinet on sturdy surface. Warning: Threaded inserts on bot-

tom of ZB550 HSD are 6mm metric threads.  Unit should face listening 

area. 
3. Connect AC power supply cord to 19V outlet on back panel.

Warning: Don’t plug AC cord into outlet before it is connect-

ed to the power connector on the rear of the unit.

4. There are three ways to connect your TV to the ZVOX ZB550 HSD: 

1) Analog Stereo – labeled Input 1, 2) Digital Coaxial –labeled Coaxial 

and 3) Digital Optical – labeled Optical. 
Analog Stereo (Input 1) is the simplest approach and, with many TVs, 

allows you to control volume with your TV remote. To use it, plug your 

supplied analog connecting cable into the red and white RCA jacks 

labeled “Input 1” on the back of the ZVOX ZB550 HSD.  Then plug  the 

other ends of the audio connecting cord into the “Audio Out” jacks of 

your TV, DVD player, cable box or satellite receiver. 
Setting TV To “Variable Audio Ouput.” If you use the analog stereo 

input (Input 1), push the “MENU” button on your TV remote control 

and then, if you have these options, choose “AUDIO” -- and navigate 

through the menu options to choose “SPEAKER: OFF” and “AUDIO OUT: 

VARIABLE” (sometimes called “AOV” on a TV’s menu). This allows you 

to control the volume of the ZVOX system using your TV’s remote con-

trol. If your TV’s audio output can’t be switched to “VARIABLE,” simply 

control the volume of the ZVOX ZB550 HSD by using the supplied 

remote control. Alternatively, you may be able to program your TV re-

mote, or a programmable/learning remote to control audio levels with 

any of the following codes: Candle 1004, Hisense 1237 or Aiwa 1036.
Coaxial Digital Input. To use the Coaxial Digital input, first acquire a co-

axial digital  connecting cable. Connect one end to the coaxial digital 

ouptut of your TV, cable box or DVD player and connect the other end 

to the “Coaxial” input.
Optical Digital Input. To use the Optical Digital input, first acquire an 

optical digital  connecting cable (sometimes called a TOSLINK cable). 

Connect one end to the optical digital ouptut of your TV, cable box or 

DVD player and connect the other end to the “Optical” input on the 

ZVOX ZB550 HSD.
6. Insert the battery in the ZVOX ZB550 HSD remote control. To do so, 

use a thumbnail to gently pinch in the two small vertical ribs on the 

bottom of the back of the remote -- while at the same time pulling 

out the battery tray, using the horizontal slot. Place the battery in the 

battery tray (with the printed side facing up), and gently push the tray 

back into the remote.
7. Turn on the ZVOX ZB550 by pushing the power button on the 

remote control. A blue LED light should come on. 
NOTE: In normal operation the unit will go into standby mode 2-3 

minutes after it stops receiving an audio signal (for example, when 

you turn off your TV). The front panel light will turn from blue to green 

in standby mode. When the signal returns (after you turn your TV on), 

the light will turn blue again. To defeat this “automatic standby” mode, 

press the “AUTO ON/OFF” button once (the light will blink). To restore 

the setting, press the button again.
8. Adjust volume with the Volume “+” 

and “–” buttons. Note that the blue LED 

light under the grille will flash with every 

push of a button. When you have reached 

maximum (or minimum) volume, the blue 

LED will stop blinking. The LED reacts this 

way for all settings – VOLUME, PHASECUE, 

SUBWOOFER and TREBLE.
9. When “MUTE” button is pushed, and vol-

ume is muted, the blue LED will flash until 

volume is un-muted with a second push of 

the button.
10. PHASECUE buttons control the ZVOX 

virtual surround sound system. There are 

nine (9) levels of PHASECUE adjustment. 

When you turn up the PHASECUE control, 

the audio should sound wider or “bigger.” 

In many cases you will hear sounds from 

places where there are no speakers. This ef-

fect is stronger with live music, live sporting events and well-recorded 

movies and TV programs. With many programs -- especially news 

shows and sitcoms -- PHASECUE will have little effect.
NOTE:  If you find that crowd noises or movie special effects are 

“drowning out” the dialog, try turning down the PHASECUE control. 

This will put more focus on dialog clarity.
11. There are nine (9) levels of SUBWOOFER control. You may need to 

experiment with SUBWOOFER levels because speaker position and 

program material have a big effect on bass.  If the audio sounds thin, 

try turning up the SUBWOOFER control.  If the bass sounds overly 

loud, “boomy” or distorted, turn down the SUBWOOFER control.
12. There are nine (9)  levels of TREBLE control. The adjustment this 

control makes is very subtle. Experiment until you think the sound is 

not too “bright” and not too “dull.” Most people set the treble control 

once and leave the setting in that position. 

•  If you hear a consistent “hiss” or hum when using the Analog Input 

(Input 1), try turning UP the volume of your TV or other audio source, 

and then set the ZVOX volume level LOWER. 

• Please keep in mind that your ZVOX ZB550 is a highly accurate audio 

system that may reveal noise or distortion that other speakers did not 

reproduce.  

• The PhaseCue control adjusts the size of the perceived “sound stage.” 

Feel free to adjust it when playing different kinds of audio. Some 

people prefer slightly more, or less PhaseCue effect. Some people 

prefer higher settings for movies, and slightly lower settings for music. 

The “five” setting (of nine) is the default setting.

A few opportunities for fine-tuning.

 

Installation and Operating Instructions: ZVOX ZB550 HSD Single-Cabinet Surround Sound System

Questions? Email us at info@zvoxaudio.com

• The “Output” jack on the rear panel is for use with an optional exter

-

nal powered subwoofer. This is a “full range” (all frequencies, not just 

bass) monaural connection, and should only be used with a subwoofer 

that has a variable crossover. We suggest you set the subwoofer’s 

crossover at approximately 90 Hz – but you should experiment with 

different settings near there. 

Connecting an external subwoofer.

1 Year Limited Warranty.

To the original purchaser, ZVOX Audio  will warrant the ZVOX 

ZB550 system to be free of defects in material and workmanship 

for a period of one (1) year from date of purchase. With respect 

to defects, ZVOX will, at its option, replace the product or repair 

the defect in the product with no charge to the original purchaser 

for parts or labor. Customer is responsible for shipping charges 

where required.

This warranty does not extend to any defect, malfunction or fail-

ure caused by misuses, abuse, accident, faulty hookup, defective 

associated equipment or use of the system with equipment for 

which it is not intended. 

This warranty is only valid when the system is returned to the re-

tailer that sold the ZVOX ZB550 system to the original purchaser. 

This is the sole and express warranty. This warranty is in lieu of all 

other warranties, expressed or implied, of merchantability, fitness 

for purpose or otherwise. In no event shall ZVOX Audio  LLC be li-

able for incidental or consequential damages or have any liability 

with respect to defects other than the obligations set forth as 

stated. Except as provided herein, ZVOX Audio LLC shall have no 

liability or responsibility to the purchaser or any other person or 

entity with respect to any liability, loss or damage caused directly 

or indirectly by use of the product, including, but not limited to, 

any incidental or consequential damages.

To ensure warranty coverage, it is incumbent upon the original 

purchaser of the ZVOX ZB550 system to inform the retailer of the 

defect within the warranty period. The only acceptable method 

of establishing warranty status is a copy of the original proof of 

purchase indicating customer’s name and purchase date.

ZVOX Audio, LLC,  59 Thomas Road, Swampscott, MA  01907  USA
info@zvoxaudio.com  www.zvoxaudio.com  781-599-5493

ZVOX

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