32140PWR

The NGTC-32140PWR is a DanteTM enabled network power amplifier for the nexgentec™ audio distribution solution

Key Features

32 x 140 Watt @ 8 Ohm / 280 Watt @ 4 Ohm
LAN control protocol
only 2RU high

Control API

This section describes the communication protocol between the control system and the 32140PWR


Connection	TCP/HTTP (NGTC-32140PWR is HTTP server), Port 80
Command Format	`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=`action`&`param`=`value`

Multiple parameters and values must be sent like: …?action=21&channel=1&name=MySpeaker

Caution

All commands must be sent as standard HTTP requests including headers, the server responds with a reply header and a JSON data table
Server will close the connection once replied, to keep the connection open set the keep-alive flag in the request header

Info

Use any browser to test the communication"

Example

Communication	Action	Example
Request	0
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=0
Reply	{“version”: “1.0.0”, “api-version”: “N3”,“fpga-version”: “2.2.0-d51c0cc4-#1040”,
	“serial”: “240818000117”,“type”: 1,“type-string”: “32140PWR”,“channel”: 32}

General

Get device info

Communication	Action	Example
Request	0
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=0
Reply	{“version”: “1.0.0”, “api-version”: “N3”,“fpga-version”: “2.2.0-d51c0cc4-#1040”,
	“serial”: “240818000117”,“type”: 1,“type-string”: “32140PWR”,“channel”: 32}

Get host name

Communication	Action	Example
Request	1
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=1
Reply	{“hostname”: “My Amp”}

Set host name

Communication	Action	Example
Request	2
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=2&hostname=“MyAmp”
Reply	{“hostname”: “MyAmp”}

Get IP configuration

Communication	Action	Example
Request	3
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=3
Reply	{“type”: “dhcp”,“ip”: “10.77.178.237”,“subnet”: “255.255.0.0”,“gateway”: “10.77.178.1”}

Set IP configuration

Communication	Action	Parameter	Example
Request	4
		type=static/dhcp/auto
		ip=x.x.x.x
		netmask=x.x.x.x
		gateway=x.x.x.x
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=4&type=static&ip=10.77.178.10&subnet=255.255.0.0&gateway=10.77.178.1
Reply	{“type”: “dhcp”,“ip”: “10.77.178.237”,“subnet”: “255.255.0.0”,“gateway”: “10.77.178.1”}

Get mains voltage

Communication	Action	Example
Request	5
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=5
Reply	{“value”: 230}

Set mains voltage

Communication	Action	Parameter	Example
Request	6
		value=90-240V
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=6&value=110
Reply	{“value”: 110}

Audio

Get master volume

Communication	Action	Example
Request	7
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=7
Reply	{“volume”: 0.0}

Set master volume

Communication	Action	Parameter	Example
Request	8
		volume=-100.0 - 24.0
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=6&volume=0
Reply	{“volume”: 0.0}

Get master mute

Communication	Action	Example
Request	9
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=9
Reply	{“mute”: 1}

Set master mute

Communication	Action	Parameter	Example
Request	10
		mute=0/1
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=10&mute=1
Reply	{“mute”: 1}

Get PSU gain reduction

Communication	Action	Example
Request	11
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=11
Reply	{“reduction”: -0.0}

Get channel name

Communication	Action	Parameter	Example
Request	20
		channel=1-MAX Channel Number
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=20&channel=1
Reply	{“channel”:1,“name”: “Ch 1”}

Set channel name

Communication	Action	Parameter	Example
Request	21
		channel=1-MAX Channel Number
		name=MAX 30 Chars
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=21&channel=1&name=MySpeaker
Reply	{“channel”:1,“name”: “MySpeaker”}

Get channel enable

Communication	Action	Parameter	Example
Request	22
		channel=1-MAX Channel Number
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=22&channel=1
Reply	{“channel”:1,“enable”: 1}

Set channel enable

Communication	Action	Parameter	Example
Request	23
		channel=1-MAX Channel Number, comma seperated if multiple
		enable=1/0
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=23&channel=1,2,3,4,5&enable=1
Reply	{“channel”: [1,2,3,4,5],“enable”: 0}

Get channel volume

Communication	Action	Parameter	Example
Request	24
		channel=1-MAX Channel Number
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=24&channel=1
Reply	{“channel”:1,“volume”: 0.0}

Set channel volume

Communication	Action	Parameter	Example
Request	25
		channel=1-MAX Channel Number
		volume=-72.0 - 24.0
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=25&channel=1&volume=1
Reply	{“channel”:1,“volume”: 1.0}

Get channel level

Communication	Action	Parameter	Example
Request	30
		channel=1-MAX Channel Number
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=30&channel=1
Reply	{“channel”:1,“peak”: -11.1,“hold”: -9.7,“clip”: 0}

Get channel status

Communication	Action	Parameter	Example
Request	31
		channel=1-MAX Channel Number
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=31&channel=1
Reply	{“channel”:1,“status”: 0,“status_text”: “OFF”,“temp”: 38.5}

Get all channel level

Communication	Action	Example
Request	40
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=40
Reply	{“level”: [{
	“peak”: -10.0,“hold”: -9.3,“clip”: 0},
	{“peak”: -12.0,“hold”: -11.4,“clip”: 0},
	… ]}

Get overview status data

Communication	Action	Example
Request	41
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=41
Reply	{“overview”: [
	{ “status”: 0,“status_text”: “OFF”,“temp”: 38.5,“enable”: 0,“volume”: 1.0,“name”: “MySpeaker”},
	{ “status”: 1,“status_text”: “OK”,“temp”: 38.5,“enable”: 1,“volume”: 0.0,“name”: “Ch 2”},
	… ]}

Syslog

Get get attached syslog server address

Communication	Action	Example
Request	50
		`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=50
Reply	{“syslog_ip”: “192.168.1.1”,“syslog_port”: “555”}

Set set syslog server address

Communication	Action	Parameter	Example
Request	51
		syslog_ip=x.x.x.x
		syslog_port=x
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=action=51 &syslog_ip=192.168.1.1&syslog_port=555
Reply	{“syslog_ip”: “192.168.1.1”,“syslog_port”: “555”}

Get number of syslog messages

Communication	Action	Parameter	Example
Request	52
		number=x
			`IP`/0CXQRB2XQ3KD7XB/nexgentec.fcgi?action=52&number=1
Reply	{“log”: [“Jan 1 01:42:37 32140PWR-000117user.info root: Amp is ok”]}

Firmware

Updates

Firmware updates can be downloaded directly with the updater tool. If on site no internet is available do not forget to download previously

Update Tool

ndfm-1.6.0.exe (52 MB)

How to update

Download updater
Disable Windows Firewall on the interface which connects to the same network as the amp
Start update software
Select Firmware.
Click on the row for each device to display the firmwares available

Hit Download to download the desired version or just download the latest one.

Once the firmware desired is downloaded go back to Devices If the devide is not listed it can be added using +DEVICE NOT IN LIST. If the device is shown already skip the next 2 steps

Click on the row which shows the network card of your computer that is in the same network as the device. BASE ADDRESS will be autofilled with the corresponding network address.
Now do a FULL NETWOR SCAN
Alternatively add the device by typing its IP adress into IP ADDRESS and press ADD DEVICE

Once the device is listed selet UPDATE MANAGER

Select which version the device should be updated to and hit UPDATE

Wait for the update to finish. It can take several minutes.

Specification


Digital Audio Input
Type	32 channels, full range
Format	Dante™, Aes67
Audio Performance
Output Power @4Ω	280W/CH
Output Power @8Ω	140W/CH
Bridge Mode	No
Distortion	0.005% 20hZ < f < 20kHz. Pout = 1W
Output Noise	40 µV
Power Bandwidth	20Hz - 35kHz
Freuquency Response	10Hz - 48kHz +0/-3dB. All loads
Network Port P1
Physical Level	Standard Ethernet
Connector	Single RJ-45
Cable Quality	CAT-5/6/7
Transmission Speed	10/100/1000 Mbps Full Duplex
Configuration	Switched, Redundant, Independent (see below)
Network Port P2
Physical Level	Standard Ethernet
Connector	Single RJ-45
Cable Quality	CAT-5/6/7
Transmission Speed	10/100/1000 Mbps Full Duplex
Configuration	Switched, Redundant, Independent (see below)
General
Mains Voltage	230V/115V, 50–60 Hz
Compliance	CE, ROHS
Power Consumption	@100–240VAC,47/63Hz 10A
Heat Dissipation	Idle 333 BTU/h, 1/8 power @4Ohm 1066 BTU/h
Operating temp	5°C – 30°C
Dimensions	L: 482mm, W: 392mm, H:88mm (2RU)
Weight	15kg

Network Port Configurations

Step files

NGTC-32140pwr_complete.step (18 MB)