Another question, when they specify details like:
Output Power at 1%THD+N
– 465 W / 3 Ω PBTL Mono Configuration
– 240 W / 6 Ω BTL Stereo Configuration
– 180 W / 8 Ω BTL Stereo Configuration
so does it means that at 8ohms, the output will be 90W per channel?
180W into 8 Ohms BTL Stereo is at 10% THD+N.
The more relevant figure for home users is:
Advanced Integrated Feedback Design with High-speedGate Driver Error Correction
(PurePath™ Ultra-HD)
We won't be using more than 20W or so for driving speakers with nominal efficiencies of 86-88 dB. At such power levels the distortion figures will be vanishingly low. My TPA3118 PBTL is rated for 60W/10%. I've never heard clipping or distortion when driving my 86 dB speakers to very loud SPLs. So the 3255 will have lots and lots of headroom. I would conservatively estimate it will have a very clean 75W (3 dB down for the 1% THD+N figure of 150W/8Ohms).
- Signal Bandwidth up to 100 kHz for High Frequency Content From HDSources
- Ultra Low 0.006% THD+N at 1 W into 4 Ω and <0.01% THD+N toClipping
- >65 dB PSRR (BTL, 1 kHz, No Input Signal)
- <85 µV(A-Weighted) Output Noise
- >111 dB (A Weighted) SNR
Discounted price is $75 after you register with TI and log in.
I am registered on Ti, still it shows $149180W into 8 Ohms BTL Stereo is at 10% THD+N.
The more relevant figure for home users is:
Advanced Integrated Feedback Design with High-speedGate Driver Error Correction
(PurePath™ Ultra-HD)
We won't be using more than 20W or so for driving speakers with nominal efficiencies of 86-88 dB. At such power levels the distortion figures will be vanishingly low. My TPA3118 PBTL is rated for 60W/10%. I've never heard clipping or distortion when driving my 86 dB speakers to very loud SPLs. So the 3255 will have lots and lots of headroom. I would conservatively estimate it will have a very clean 75W (3 dB down for the 1% THD+N figure of 150W/8Ohms).
- Signal Bandwidth up to 100 kHz for High Frequency Content From HDSources
- Ultra Low 0.006% THD+N at 1 W into 4 Ω and <0.01% THD+N toClipping
- >65 dB PSRR (BTL, 1 kHz, No Input Signal)
- <85 µV(A-Weighted) Output Noise
- >111 dB (A Weighted) SNR
Discounted price is $75 after you register with TI and log in.
customs no issue, someone is arriving from USA. Only thing is the discount.Do add shipping cost of about $18 too.
Customs is a shot in the dark, a Russian Roulette, etc
Also, the wattages mentioned in the spec sheet are all per channel output figures so no need to halve them.
I am registered on Ti, still it shows $149
Thanks, it works. Also, using the code, shipping is free within US.Discount code "highpoweraudio" at checkout.
Regarding the power requirements/utility. If i use a pair of tweeter rated 15-30 W & Woofers rated 60-85 W, what should be the power of the amp I would need?
welcomealso new one here
I think this really depends on whether or not you plan to push the drivers hard. The general wisdom is one should not send clipped signal from amp to speakers as a clipped signal can damage drivers, especially tweeters. One can go easy on the volume knob and keep the amplification chain well within its linear range to avoid clipping, OR use amplifier with sufficient headroom and push the drivers hard to their maximum capability. The second scenario is very unlikely because our ears will give up long before the drivers give up.
To answer your question, buy a high powered amp if you'll be playing sustained high SPLs. Otherwise many here would testify that their 40-50W amps can more than drive their speakers to stupidly loud SPLs. Of course how good/bad am amp sounds is hardly correlated to its output power.
thankswelcome
I am using this 3251 chip to drive my Paradigm Monitor towers which are 8 ohms.
Though I haven't measured, this chip produces quite a loud sound. I have had to put a restriction of 70% volume on the Volumio player software !!