ENGLISH FRANÇAIS DEUTSCH ESPAÑOL ITALIANO PORTUGUÊS SVENSKA
TROUBLESHOOTING
PROBLEM |
| CAUSE | SOLUTION |
NO SOUND | • | Power AC lead unplugged or power not | • Check if AC lead is plugged in and power |
|
| switched on | switched on |
|
|
|
|
NO SOUND ON ONE CHANNEL | • | Speaker not properly connected or damaged. | • Check connections and speakers |
| • Input lead disconnected or damaged | • Check leads and connections | |
|
|
|
|
NO SOUND ON SURROUND CHANNELS | • | No surround mode selected | • Select a Surround Mode |
| • | Mono sound source | • Test system with Stereo or Dolby Surround |
|
|
| material |
| • Speakers not properly connected | • Check speakers and connections | |
| • Surround volume level too low | • Increase surround volume level | |
|
|
|
|
NO SOUND ON CENTER CHANNEL | • | Speaker not connected properly | • Check speaker and connection |
| • Center volume level set too low | • Increase center volume level | |
|
|
|
|
WEAK BASS/ DIFFUSE STEREO IMAGE | • | Speakers wired out of phase | • Check connections to all speakers in the system |
|
|
|
|
TEMPORARILY SWITCHES TO STANDBY, THEN | • | Amplifier is running too hot | • Let the amplifier cool down |
SWITCHES BACK ON AUTOMATICALLY |
|
| • Remove the excessive load condition |
|
|
| • Speakers must be greater than 4 Ohms nominal |
SPECIFICATIONS |
|
AMPLIFIER SECTION |
|
CONTINUOUS AVERAGE POWER OUTPUT | > 7 x 140 W (21.5 dBW) |
INTO 8 OHMS OR 4 OHMS |
|
(Minimum power per channel, 20 Hz - 20 kHz, all seven channels driven, with no more than rated distortion)
Rated Distortion |
| < 0.03% |
(THD 20 Hz - 20 kHz) |
|
|
Clipping power |
| > 170 W (22.3 dBW) |
(Maximum continuous power per channel, all seven channels driven) | ||
IHF DYNAMIC POWER |
|
|
(Maximum short term power per channel) |
| |
8 ohms: |
| > 230 W (24 dBW) |
4 ohms: |
| > 390 W (26 dBW) |
2 ohms: |
| > 450 W (26.5 dBW) |
Damping factor |
| > 300 |
(Reference 8 ohms at 50Hz) |
|
|
Input sensitivity (for rated output into 8 ohms) | 1.1V | |
Voltage gain |
| 29 dB |
Frequency response 20 Hz - 20 kHz |
| ±0.2 dB |
|
| - 3dB at 3 Hz and 100 kHz |
Signal / Noise ratio, |
| > 96 dB ref. 1 W |
|
| > 125 dB ref. 140W |
DIMENSIONS AND WEIGHTS |
|
|
Net Weight |
| 68 Ib (31kg) |
Shipping Weight |
| 72 Ib (33kg) |
Dimension (W H D) | Net | 17.1 x 7.1 x 17.7”(435 x 180 x 450mm) |
| Gross* | 17.1 x 7.7 x 19.5”(435 x 195 x 495mm) |
*Gross dimensions include feet, volume knob, power button and extended speaker terminals.
Specifications are subject to change without notice. For updated documentation and features please log onto
www.nadelectronics.com for the latest information about your T975.
10
