F5 Listening Impressions & Discussion

[Nelson Pass]

Originally Posted by bear

One of the interesting aspects is that since there are so few parts involved one might expect that it could be possible to correlate some sort of actual empirical measurement back to the resulting sound - whereas with a complex "modern" amplifier design the number of variables is extremely high.

This is my experience, and is one reason why I find simple
amplifiers so interesting.

[stefan5000]

I've been using F5 with sort of bride of zen preamp and OB with fostex108E+15"Fane drivers .For the time being I think this is my ultimate sound
(see for fow long...he he).anyway,in my modest opinion this amp deserves all the good rewiews it's got.Roben Ford has materialised in my house thanks to this litlle amp and that's what counts in the end.

[Netlist]

F5 power amplifier

I moved the technical posts to the original F5 thread.

/Hugo

[bear]

Originally Posted by Netlist

F5 power amplifier

I moved the technical posts to the original F5 thread.

/Hugo

Ummm... IF "technical posts" relate to or correlate the listening experience to parts or circuit details, I would appreciate it if they stayed here and if appropriate to do so, duplicated (a copy placed) in the main F5 thread...

(I have not looked at what those posts were.)

_-_-bear

[panos29]

Anybody would like to comment on the sound with and without the thermistors? My own findings are very controversial as far as the quality of sound is concerned, meanining that I much prefer by far the amp without the thermistors. Actual thermistors used are epcos (needless to say that in both cases the amplifier worked under same conditions of voltage, current and temperature)

Any input would be realy appreciated

[Netlist]

bear, they were troubleshooting posts. Let me know...

/Hugo

[stefan5000]

Originally Posted by panos29

Anybody would like to comment on the sound with and without the thermistors? My own findings are very controversial as far as the quality of sound is concerned, meanining that I much prefer by far the amp without the thermistors. Actual thermistors used are epcos (needless to say that in both cases the amplifier worked under same conditions of voltage, current and temperature)

Any input would be realy appreciated

I never put them in the first place (too lazy),so I wouldn't know. According to few people sound improves without current limiter.Any specific thoughts in witch way sound changed?

[bobodioulasso]

Sound is free. No obstacle for high transients.
An amp always sounds better without limiters.
The reward for being brave.

[panos29]

Originally Posted by stefan5000

I never put them in the first place (too lazy),so I wouldn't know. According to few people sound improves without current limiter.Any specific thoughts in witch way sound changed?

I did not tried to disconnect the current limiter yet. With the thermistors in place the difference in sound quality is really huge, with the thermistors in the amp becomes uninvolving as a mediocre over counter type of amplifier, while with the thermistors out it is transformed in a real performer in every aspect of audio reproduction.

[bobodioulasso]

With the thermistors in place the difference in sound quality is really huge, with the thermistors in the amp becomes uninvolving as a mediocre over counter type of amplifier

I am far from feeling this.