Audio Precision System 22 with burst generator
Audio Precision AUX-000025 Switching Amplifier Measurement Filter
Valhalla 2301 Digital Power Analyzer
Tektronix 2465B scope
8 x 1500W 8 ohm non inductive load resistors
Powerstat 50A variac
Topaz 5KVA ultra-isolating transformer
50A 120/208VAC mains
|
MAKE |
MODEL |
SHORT TERM
POWER WATTS/OHM
SEC |
MEDIUM
TERM POWER WATTS/OHM
SEC |
LONG TERM
POWER UNTIL THERMAL WATTS/OHM |
NOTES |
|
SPEAKERPOWER |
SP1-2400 |
2400W/4 5S
40HZ |
2400W/4 5S |
1250W/4 |
HIGH
EFFICENCY >90% |
|
|
SP1-4000 |
4000W/2 6S |
4000W/2 6S |
2250W/2 |
|
|
|
SP1-3200 |
3200W/4 3S |
3200W/4 3S |
1125W/4 |
|
|
|
SP1-6000 |
6000W/2 4S |
6000W/2 4S |
2300W/2 |
|
|
|
|
|
|
|
|
|
LAB
GRUPPEN |
FP14000 |
4800W/2
0.080 S 3000W/4
0.200 S 2400W/8
0.200 S ALL AT
50HZ |
1500W/2
0.250 S 1500W/4 0.500S 1500W/8 0.800 S |
1500W/2 1500W/4 1500W/8 |
RAPID
THERMAL MUTE ON/OFF AT 2/5/6 MIN FROM COLD. FAN SLOWER WHEN SIGNAL APPLIED!
LONG TERM THERMALLY LIMTED POWER 500W/2/CH |
|
|
|
|
|
|
|
|
PASCAL |
X-PRO3 CH1 |
1400W/4 2S
1KHZ 1400W/8 2S
1KHZ 730W/4
40HZ >10S 576W/4
30HZ >10S 230W/4
20HZ >10S |
1400W/4 2S
1KHZ 1400W/8 2S
1KHZ 730W/4
40HZ >10S 576W/4
30HZ >10S 230W/4
20HZ >10S |
223W/4 850W/8 |
CRUDE LF
CLIPPER SEVERELY LIMITS UNDISTORTED POWER AT LF. PSU COLLAPSE TAKES >10S
TO RECOVER. LOW EFFICIENCY FOR CLASS D 60%. |
|
|
|
|
|
|
|
|
POWERSOFT |
2000HV |
542W/8
3.5S |
542W/8
3.5S |
230W/8 |
MUST BE
OFF FOR 7 SECONDS FOR PSU TO RECOVER AND GIVE FULL SHORT TERM POWER AGAIN.
HIGH IDLE 32W. EFFICIENCY 80% |
|
|
|
|
|
|
|
|
QSC |
PL380 |
2900W/2 2S 2000W/4 4S 1390W/8
16S |
2900W/2 2S 2000W/4 4S 1390W/8
16S |
980W/2 7S 1050W/4 8S 1100W/8 |
CUTS BACK,
BUT NEVER THERMALS OFF. 2 &4 OHM POWER WOULD HAVE BEEN HIGHER BUT AC
SERVICE WAS LOW B/C HOT DAY. |
|
|
|
|
|
|
|
|
CROWN
12000HD |
12000HD |
3450W/4 2S 1650W/8 |
3450W/4 2S 1650W/8 |
3000W/4 1650W/8 |
LOW
EFFICIENCY FOR CLASS D 60% COULD NOT TEST 2 OHMS, DRAWS TOO MUCH POWER! HIGH
IDLE 38W. 2 FANS EACH DRAWS 100W! A REAL SCREAMER |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
