[stezie]

i took this data from the panasonic support website these are the speaker details, im confused as the sticker on the front speakers definately said 260w 6 ohm. not 170w... these specs are looking like a foreign language to me now.


So what everyone is saying is that the lower the ohm on the speaker the harder the amp has to work to drive it, and so in turn may cause damage by overheating if it cant drive a 4 ohm speaker? is an 8 ohm speaker ideal to use? so then i should check that the amp can drive a 4 ohm speaker before i plug these speakers in?


[HT870] [Front\speakers\SB-PF921]
Type 2 way, 3 speaker system (Bass reflex)
Speaker unit(s) Impedance 6 ≠
Woofer 6.5 cm Cone type
Woofer 6.5 cm Cone type
Tweeter 6 cm Ring-shaped dome type
Input power (IEC) 170 W§ (Max)
Output sound pressure 83 dB/W (1.0 m)
Cross over frequency 7 kHz
Frequency range 92 Hz–50 kHz (j16 dB)
110 Hz–45 kHz (j10 dB)
Dimensions (WtHtD) 250k1160 (Max)/704 (Min)k247 mm
Speaker height adjustment range 1160–575 mm
[However, the height of the stand is fixed at 704 mm]
Mass 4 kg

[HT870] [Surround\speakers\SB-PS921]
Type 2 way, 2 speaker system (Bass reflex)
Speaker unit(s) Impedance 4 ≠
Woofer 6.5 cm Cone type
Tweeter 6 cm Cone type
Input power (IEC) 70 W (Max)
Output sound pressure 81 dB/W (1.0 m)
Cross over frequency 5 kHz
Frequency range 89 Hz–41 kHz (j16 dB)
100 Hz–40 kHz (j10 dB)
Dimensions (WtHtD) 250k1160 (Max)/704 (Min)k247 mm
Speaker height adjustment range 1160–575 mm
[However, the height of the stand is fixed at 704 mm]
Mass 3.6 kg

[HT870] [Center\speaker\SB-PC920]
Type 2 way, 3 speaker system (Bass reflex)
Speaker unit(s) Impedance 4 ≠
Woofer 6.5 cm Cone type
Woofer 6.5 cm Cone type
Tweeter 6 cm Ring-shaped dome type
Input power (IEC) 270 W§ (Max)
Output sound pressure 82 dB/W (1.0 m)
Cross over frequency 5 kHz
Frequency range 110 Hz–50 kHz (j16 dB)
140 Hz–45 kHz (j10 dB)
Dimensions (WtHtD) 320k97k93 mm
Mass 1.5 kg

[HT870] [Active\subwoofer\SB-WA870]
Type 1 way, 1 speaker system (Bass reflex)
Speaker unit(s) Impedance 4 ≠
Woofer 20 cm Cone type
Output sound pressure 84 dB/W (1.0 m)
Frequency range 34 Hz–220 Hz (j16 dB)
38 Hz–190 Hz (j10 dB)
Dimensions (WtHtD) 248k417k476.6 mm
Mass 16.4 kg