Elektroniikka ja soitinrakennus ›

Kiitos vielä kaikille keskusteluun osallistuneille. En malttanut olla tiedustelematta asiaa eräältä jenkkiläiseltä Fenderforumiin aktiivisesti kirjoittavalta vahvistingurulta. Tässä hänen vastauksensa kysymykseeni:
 
Oletko esim. Mikko samaa mieltä näistä neuvoista?
 
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My theory is that the EXT SPEAKER Jack, was ment to be used, but at lower volumes to avoid straining Output Transformer.
 
The current belief is that a vintage Fender Output Transformer will go 2X either way. This means you could go with 2 Ohms to 8 Ohms. That being said, the MOST POWER will be developed at 4 Ohms.
 
I suggest this: replace your 8 Ohm speakers with 4 Ohm or 16 Ohm units. Wire the 4 Ohms in series for 8 Ohms, or the 16 Ohms in parallel for 8 Ohms. As you don't need MAX power for a small club this should cover it.
 
Make your Extension Cab 8 Ohms, so that the amp is loaded at 4 Ohms when you are playing it loud and it will deliver all the power it can.
 
This solution seems the best you can do, and minimizes the risk of damaging the amp.

...I suggest this: replace your 8 Ohm speakers with 4 Ohm or 16 Ohm units...
 
Siis ei mitään järkeä koko reiässä...

My theory is that the EXT SPEAKER Jack, was ment to be used, but at lower volumes to avoid straining Output Transformer.
 
Kuulostaa oudolta suunnittelutavalta. Onko manuualissa mainittu että käytä vaan mutta älä soito kovin kovaa.-)
 
The current belief is that a vintage Fender Output Transformer will go 2X either way. This means you could go with 2 Ohms to 8 Ohms. That being said, the MOST POWER will be developed at 4 Ohms.
 
Samaa mieltä.
 
I suggest this: replace your 8 Ohm speakers with 4 Ohm or 16 Ohm units. Wire the 4 Ohms in series for 8 Ohms, or the 16 Ohms in parallel for 8 Ohms. As you don't need MAX power for a small club this should cover it.
 
Make your Extension Cab 8 Ohms, so that the amp is loaded at 4 Ohms when you are playing it loud and it will deliver all the power it can.
 
This solution seems the best you can do, and minimizes the risk of damaging the amp.
 
Ehkä samaan vaivaan voi tehdä sellaisen lisäkaapin, joka yksinään antaa tarpeeksi hökää, vaikka 2*12 herkillä elementeillä...
 
t,
Mikko