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Operation

7. Operation

Once all connections have been made and configuration 
options selected, PowerZone Connect amplifiers are 
ready for use. If an input signal above -60dB is present 
on any input, the front panel Input and  Standby 
indicators will illuminate green to indicate normal 
amplifier operation. Audio will be heard from any 
connected speakers.

Note: PowerZone Connect amplifiers will not switch on from 
Standby Mode unless an input signal is present, a network ‘ON’ 
command is received, or an external standby switch (or 12V trigger) 
is operated. Standby behaviour can be  configured via the Power 
Management menu of the Settings Tab.

Amplifier outputs will mute if no input signal is present for 5 
minutes, and the amplifier will switch automatically to Standby 
Mode if no signal is present on any input for more than 15 
minutes. Alternative standby and mute delay times can selected 
via the Settings Tab. Amplifier cooling fan speed is temperature 
controlled. The fan will switch off when the amplifier enters 
standby mode.

7.1 Front Panel Indicators

PowerZone Connect amplifier front panel indicators illuminate 
to indicate the following operational states:

Status: 

Off – Mains power disconnected. 

 

Green – Amplifier operational. 

 

Pulse Green – Standby Mode. 

 

Amber – GPIO triggered Standby Mode

Input: 

 Off – No input signal present. 
Green – Signal present on one or more inputs. 
Amber – Signal limiting/clipping on one or more 
inputs.

Output:   Off – No output signal present. 

Green – Signal present on one or more outputs. 
Amber – Signal limiting/clipping on one or more 
outputs. 
Red – One or more channel pair is in  
overload/protection mode.

Network:  Off – No Ethernet network detected. 
 

Green – Ethernet network detected.

WiFi: 

Off – WiFi disabled. 

 

Green – WiFi enabled. 

7.2 Automatic Power Sharing

PowerZone Connect amplifiers incorporate a power sharing 
feature that automatically shares the total power available 
from the amplifier’s internal power supply across each pair of 
output channels. If one channel temporarily demands more 
than the amplifier’s continuous power rating while other 
channel is demanding less, the excess power available from the 
internal power supply is automatically made available to the 
over-power channel. Power sharing optimises the amplifier’s 
ability to deliver maximum power into dynamic loudspeaker 
loads when playing music programme material.

7.3 Default Reset

PowerZone Connect amplifiers can be returned to their default 
settings via either the Control Web App Settings Tab or the 
hardware reset pinhole button. The reset pinhole button is 
located on the underside panel of the amplifier. 

To reset the amplifier using the pinhole button, follow the steps 
below:

 

• Disconnect the amplifier from mains power.

 

•  Use an appropriate tool to press and hold the reset 

pinhole button while simultaneously reconnecting mains 
power. 

 

•  Continue to hold the reset pinhole button for 3 to 5 

seconds as the amplifier restarts.

The amplifier will restart with all settings at their default state. 
Any previously configured settings will be deleted.

Summary of Contents for PowerZone Connect 122

Page 1: ...INSTALLATION GUIDE USER MANUAL PowerZone Connect 122 PowerZone Connect 252 PowerZone Connect 254 PowerZone Connect 504 ...

Page 2: ...evel of performance and in good operating condition Any damage to or unsatisfactory performance from these amplifiers caused by inadequate or failed input or output ancillaries may invalidate support warranty or guarantees of performance 6 These amplifiers are intended to be installed and operated indoor in a controlled environment pollution degree PD2 within an ambient temperature range of 0 C to...

Page 3: ... particularly at plugs convenience receptacles and the point where they exit from the apparatus 14 Do not unplug the unit by pulling on the cord use the plug 15 Only use attachments accessories specified by the manufacturer 16 Unplug this apparatus during lightning storms or when unused for long periods of time 17 Refer all servicing to qualified service personnel Servicing is required when the ap...

Page 4: ...nd 504 amplifiers are half rack width 1U format power amplifiers that can drive both conventional low impedance Lo Z 4Ω to 16Ω loudspeakers and high impedance Hi Z 70V 100V transformer coupled loudspeakers They provide four analog inputs one stereo S PDIF digital input and either two or four outputs Lo Z mode or one or two outputs Hi Z mode PowerZone Connect amplifiers also incorporate automatic p...

Page 5: ...rily intended for installation in an equipment rack but can also be under desk or wall mounted or used free standing They are fan cooled and must be installed such that ventilation apertures are not obstructed 2 4 Firmware This manual describes the features functions and user interface of PowerZone Connect amplifiers running Firmware Version 1 2 0 It is strongly recommended that the firmware versi...

Page 6: ... Shaded area defines ventilation space Diagram 1a PowerZone Connect two channel amplifier dimensions Shaded area defines ventilation space 44 mm 1 7 in 44 mm 1 7 in 220 mm 8 7 in 220 mm 8 7 in 213 mm 8 4 in 80 mm 3 1 in 80 mm 3 1 in 319 mm 12 6 in 25 mm 1 0 in 25 mm 1 0 in ...

Page 7: ... at all times Ventilation apertures are also located on the rear panel of the amplifier and must not be obstructed It is important to retain at least 80 mm 3 1 in free space for airflow behind the amplifier rear panel In addition to rack mount ears optional rack mount rear support hardware is available and can be attached to the amplifier Rear support hardware may be appropriate if the amplifier i...

Page 8: ...esks or wall mounted using connecting plate hardware The adhesive rubber feet should also be used in these circumstances to minimise the possibility of vibration between the amplifier and mounting surface Wall and desk mounting is illustrated in Diagrams 4a and 4b It is important in any free standing installation that airflow through the amplifier s side panel mounted fans and rear panel ventilati...

Page 9: ...rZone Connect amplifier default LAN IP address is 192 168 64 100 Configure the laptop or desktop computer for a fixed IP address in the same IP range eg 192 168 64 10 with Subnet mask of 255 255 255 0 or prefix 24 and set the Gateway to 192 168 64 1 4 Open a laptop or desktop web browser and enter the address http 192 168 64 100 The PowerZone Control Web App interface will open to enable amplifier...

Page 10: ...y option Adjust input gain Adjust zone volume Adjust zone volume Note When adjusting input gain the input level display should remain green If it displays red the input gain should be reduced 5 3 Configuration Menus Opening a web browser that is network connected to a PowerZone Connect amplifier initially displays the PowerZone Control Web App Dashboard illustrated in Diagram 5a The Dashboard is t...

Page 11: ...enus For all Output Tab menus the amplifier output under configuration is selected by highlighting one of the output identifiers 1 2 3 or 4 at the top of the display The Output Tab also enables Speaker Preset configurations to be created exported imported or cleared Diagram 5d illustrates the Output Tab Note The number of individual outputs available for configuration will depend on the PowerZone ...

Page 12: ...s are available for download from the Blaze website www blaze audio com 2 Select the appropriate zcp format speaker preset data file to import from either a Library or a computer folder The preset data will be applied to the selected amplifier output as soon as the file import is complete 3 If the Speaker Preset data requires modification it can be customized by selecting the CUSTOMIZE PRESET opti...

Page 13: ...parameters adjust automatically in response to Crossover Gain high pass filter settings The Output Mode preset menu enables individual amplifier outputs to be switched off or configured for Lo Z or Hi Z modes In Hi Z modes a high pass filter can also be configured and applied to the output The number of outputs available will depend on the amplifier model input setup and zone setup For example a t...

Page 14: ...mplifier configuration data to be downloaded to an external archive and enables previously saved configuration files to be uploaded and adopted by the currently connected amplifier The Speaker Library menu enables management of speaker preset libraries Existing libraries of speaker preset files zcl can be created or imported and existing libraries edited or fully deleted Diagram 5j illustrates the...

Page 15: ...n Trim Gain Trim Gain Trim Input Sensitivity Input Gain Input Gain Input Selection Input Setup Zone Setup Routing Output Setup Output 1 Output 2 Output 3 Output 4 Zone Adjustment Parameters Speaker Preset Parameters 5 4 Setup and Signal Routing Thanks to their network based configuration features PowerZone Connect amplifiers offer considerable versatility in terms of sources signal routing install...

Page 16: ...ect the zone to be configured The number of zones available and their channel format stereo or mono will depend on the amplifier model input setup and output mode Lo Z or Hi Z For example a two output amplifier can have the following zone configurations 1 x stereo Lo Z zone 2 x mono Lo Z zones 1 x mono Hi Z zone A four output amplifier can have the following zones configured 2 x stereo Lo Z zones ...

Page 17: ...IO Pin 8 has a low output impedance and is able to supply a maximum current of 10mA Note GPIO Pin 1 and Pin 3 both offer ground connections Pin 1 is connected directly to the amplifier chassis Pin 3 is connected to the chassis via a 220 Ohm resistor The soft ground connection of Pin 3 is potentially useful for managing ground loops that may cause audible hum Diagram 5l GPIO Settings Menu Diagram 5...

Page 18: ...one Connect rear panel connections Note Two output amplifier model connection sockets differ only in the deletion of channel 3 and channel 4 output connectors Digital Inputs PowerZone Connect S PDIF stereo digital audio input connections are made via a single RCA Phono socket The S PDIF input is connected by default to amplifier installation Zones A left and B right Digital Outputs PowerZone Conne...

Page 19: ...onnecting PowerZone Connect amplifiers to a TCP IP network is described in Section 5 of this manual Cable Gauge Table Lo Z installations 0 5dB attenuation 4 Ω 8 Ω loads Cable Gauge Table 70V Hi Z installations 1 0dB attenuation 20 speakers evenly distributed Cable Gauge Table 100V Hi Z installations 1 0dB attenuation 20 speakers evenly distributed Cable Cross Section mm2 Cable Gauge AWG Max Cable ...

Page 20: ...he exclamation point printed next to the output terminals of the amplifiers is in addition to the CLASS 2 WIRING text intended to alert users to the risk of hazardous voltages Output connectors that could pose a risk are marked with the exclamation point Do not touch the output terminals while the amplifier is switched on Make all connections with the amplifier switched off ...

Page 21: ...nputs Output Off No output signal present Green Signal present on one or more outputs Amber Signal limiting clipping on one or more outputs Red One or more channel pair is in overload protection mode Network Off No Ethernet network detected Green Ethernet network detected WiFi Off WiFi disabled Green WiFi enabled 7 2 Automatic Power Sharing PowerZone Connect amplifiers incorporate a power sharing ...

Page 22: ...lbs 2 8kg 6 2 lbs 2 8kg 6 2 lbs Output Circuitry UMAC Class D full bandwidth PWM modulator with ultra low distortion Output Voltage 70Vp 140Vpp unloaded Bridged 140Vp 280 Vpp unloaded Signal To Noise Ratio 106dB A weighted 20Hz 20kHz 8Ω load THD N typical 0 05 20Hz 20kHz 8Ω load 3dB below rated power Frequency Response 20Hz 20kHz 0 0 25dB 8Ω load 3dB below rated power Protection Circuits Short cir...

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