imhififan
Responses from imhififan
| Broke key guide on 6sn7 how to keep using tube You can use a keyway replacement from Tube Depot, https://www.tubedepot.com/products/octal-tube-keyway-replacement The filament pins of 6sn7 are 7 and 8, you can use a DMM ( digital multimeter ) to identify the filament pins by using ohm m... | |
| Amp switcher with tube amp protection The most simple way to protect your tube amplifier output transformer is connect a 5Watt 100Ω - 150Ω resistor across the "+" and "-" speaker output binding posts of your tube amp, either 4Ω or 8Ω tap is OK, it will provide some load to t... | |
| Tracking error or ?? I had similar problem on one of my LP, A long long time by Linda Ronstadt, I play it with different table, same problem, found out the problem is a worn out track... | |
| Should the sound level in Triode mode be lower than in Tetrode it all depends on load. Both Mack truck and Honda Civic can cruise at 50mph, but the load is what makes it different. Yes, if you connect a 100dB sensitivity speaker to the 100 Watts amplifier and a 86dB sensitivity speaker to the 250 Watts amplif... | |
| Duntech PCL-3 on-wall will xover at 80hz make easier to drive if I add a sub and crossover the speakers at 80hz, how much does that ease the amp strain? Yes, it definitely helps, in your case, simply set the front speakers to "small" on your Marantz NR1510. | |
| Should the sound level in Triode mode be lower than in Tetrode I can connect left channel output of the preamp to a 100 watts power amp and the right channel to 250 watts one, and expect both the left and right speakers sound with the same volume just delivering a different headroom quality? Yes, if the gain... | |
| testing a crossover Lower than expected dcr for 0.22uH inductor; from what I can tell, a nominal dc resistance for that inductor is about 0.21 ohms. Are you refer to the 0.22mH inductor across the tweeter? https://ucarecdn.audiogon.com/a89e98dd-d4a0-4acf-9f74-934... | |
| testing a crossover I just recently learned that iron core inductors are suppose to be better than air core for the bass driver due to the lower dc resistance in many cases. @fiesta75 If replace a cored inductor with air core, I think it is important to use the same... | |
| testing a crossover Tell you what,you guys have put so much time and effort into this,this weekend i am going to clean everything up and start again,i will take variuos readings on crossovers,re-assemble the whole two speakers and do it all again and then i will ... | |
| testing a crossover Please look at this photo: https://ucarecdn.audiogon.com/32d4343f-f8e2-4de2-95f7-2e0766972c94/-/autorotate/yes/ If that is a short, for bi-amping, it will connect two amplifier output together through the 3.5mH inductor and the 3.3Ω resistor. Ther... | |
| testing a crossover I don’t know it’s can be of any help, you can find the xover schematic here: https://ucarecdn.audiogon.com/a89e98dd-d4a0-4acf-9f74-934683ea9b70/-/autorotate/yes/ | |
| Gain and linestage he's in business because he enjoys doing audio. @atmasphere +1111111111111111 | |
| Chained speakers signal connected in series @fiesta75, I think it was 7 or 8 years ago, my friend use Hornresp (http://www.hornresp.net/) did a simulation on his speakers and found that connect two speakers in series the low pass filter cutoff frequency get lowered, our conclusion was the... | |
| Chained speakers signal connected in series @fiesta75, Can we agree that Rt equals 16ohms in series? YesCan we agree that Lt = L1 + L2 in series? No, IMO, the first woofer will see the voice coil of second woofer as an inductor in series, same for the second woofer, it will see the voice ... | |
| Chained speakers signal connected in series I disagree with imhififan’s opinion that the crossover points will change. I believe the Tannoy SGM 10B has parallel crossover, if connect two speakers in series, the LF section will be #1 speaker low pass inductor --> #1 speaker woofer --&g... |