There are a large number of professional amplifiers that are convection
cooled, so they have no fans. In these applications it is not just the
noise people worry about, it is that they may be located in an equipment
rack away from people. Were they fan cooled, the fan could fail or the
air cooling path clogged by dust without anyone noticing until it was
From: Association for Recorded Sound Discussion List
[mailto:[log in to unmask]] On Behalf Of David Lennick
Sent: Monday, August 29, 2005 10:54 AM
To: [log in to unmask]
Subject: Re: [ARSCLIST] fan noise in yamaha rx-v740
Unbelievable. I don't suppose it would help to suggest playing only
quartets in E Major (Haydn, Tchaikovsky, Dvorak, Paganini)?
Michael Ridderbusch wrote:
> Perhaps someone knows the answer to this.
> I recently purchased a top of the line receiver by yamaha, the
> rx-v740, only to discover that its fan produces an audible e below
> middle c which makes it useless to me when listening to chamber music,
> or any music where amplitude has peaks and valleys.
> Is it normal for the fan to be audible?
> Is this a design trend, or are there superlative amplifiers out there
> without fans, or at least without noisy fans?
> If a fan is noiseless, will it get noisier with age?