Lab.gruppen C Series 88:4 - Manual (Page 35)

6. Appendix
28
C Series C 88:4, C 68:4, C 48:4, C 28:4 and C 16:4 Operation Manual rev 2.2.3
Q: How can I be sure that no protection circuits or safety functions interfere with the output signal?
A: If no Clip or Warning LEDs on the front-panel light up, you can be fully confident that the rated maximum
output power in the full frequency range is available for your speakers. No limiting or gain-reduction takes place
without a warning or fault indication.
6.3 Additional documentation
In case you didn’t find what you were looking for in this Operation Manual, check out the website at
www.labgruppen.com, where you can find a multitude of additional documentation for C Series.
6.4 Current Draw and Thermal Dissipation specification
The following tables contain information on measured current consumption as well as calculated heat dissipa-
tion during normal operation(1/8 rated power); and during extreme heavy duty operation (1/4 rated power).
C 88:4
Level Load Rated power Line Current *2) Watt *1) Thermal Dissipation
115 VAC 230 VAC In Out Dissipated BTU/hr kCal/hr
Standby with remote power off via NomadLink 0 0 0 0 0
Powered on, idling. 139 0 139 475 120
Amp (I) Watt
Pink noise (1/8
rated power) 8 Ω / Ch. 1250 x 4
17.6 8.8 1177 625 552 1884 475
16 Ω / Bridged 2500 x 2
4 Ω / Ch. 2100 x 4
27 13.5 1914 1050 864 2949 743
8 Ω / Bridged 4200 x 2
2 Ω / Ch. *4) 2200 x 4
33.6 16.8 2221 1150 1071 3655 921
4 Ω / Bridged *4) 4400 x 2
100 V / Ch. 2000 x 4
26.2 13.1 1838 1000 838 2860 721
200 V / Bridged N/R
Pink noise
(max power)
*3) 8 Ω / Ch. 1250 x 4
30.0 16.0 2006/2140 1145/1221 860/918 2935/3133 739/789
16 Ω / Bridged 2500 x 2
4 Ω / Ch. 2100 x 4
30.0 16.0 2127/2268 1230/1312 896/956 3058/3263 770/822
8 Ω / Bridged 4200 x 2
2 Ω / Ch. 2300 x 4
30.0 16.0 1983/2115 1016/1084 966/1031 3297/3519 831/886
4 Ω / Bridged 4600 x 2
100 V / Ch. 2000 x 4
30.0 16.0 5992/2236 3467/1294 883/942 3014/3216 759/810
200 V / Bridged 4000 x 2
Mains connector, 230 V CE version 16 A, CEE7
Mains connector, 115 V ETL version 30A Twist Lock
*1) The amplifi er’s PSU operates as a non-resistive load, so the calculation “Volts x Amps = Watts” would not be correct. Instead, measured and
specifi ed here is what is known as the “Active Power” in the amplifi er providing useful, real-world values of power consumption and heat dissipation.
*2) Current draw fi gures measured at 230 V. 115 V fi gures are 230 V fi gures multiplied by two.
*3) Figures measured at maximum sustainable power without tripping the mains fuse. Listed separately for 30 A/115 V and 16 A/230 V operation. Note
that the max. power condition is very extreme and will not occur during normal operation. Also note that the mains breaker will not be tripped even if
operation is momentarily in excess of max. ratings.
*4) Italics used for conditions that, if sustained over long time periods, may trigger the mains breaker. Therefore these measurements should not be used
when calculating cooling requirements as they cannot be sustained by the mains breaker over time.
Table 8.4a: C 88:4 Current Draw and Thermal Dissipation specifications