Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

---

[ Follow Ups ] Thread: [ Display  All  Email ] [ Tweakers' Asylum ]

---

[ Alert Moderator ]

---

Re: Too low vol setting bad for dynamics ?

Posted by Jacques (A) on July 25, 2005 at 12:01:16

In Reply to: Re: Too low vol setting bad for dynamics ? posted by zanash on July 24, 2005 at 11:51:18:

>low cost vol pot have all sorts of none linear faults at low levels...
How do you know Trackside's Arcam Delta 60 amp has a cheap vol pot?
Arcam uses good quality components, I own some equipement of them.That said, you're right, and furthermore since they are log pots. The only relevant non-linearity is a tolerance in the curve angle vs pedestal resistance. Such a non-linearity would give balance error between channels, but, once set, cannot degrade the signal. Or I'm missing something (it interests me, since, as a secondary job, I teach electronic components and sensors technology in a MS level engineering school in Marseilles)?

>Also badly designed input and output stages can be overwhelmed...
Same question as above, how do you know Arcam badly designed input and output stages in their Delta 60 amp?

> I belive
I don't. Arcam, as most manufacturers, and all the serious ones, uses the standard consumer input level. The gain is set in order to give the expected steady output power level on a reference impedance (8 ohms) with the standard consumer input level + a headroom. So, as long as the load impedance is not lower than specified (often 3 ohms), and the input level is not higher than the standard level + its headroom, you just cannot overwhelm any design that comply with its specifications.

> Attenuation will help here to
Attenuation will help before the preamp, between the CD reader and the PA, that's were the level mismatch occurs. I agree with the attenuator builder in this matter

>Many to notch preamps have selectable input sensetivites to help overcome this problem.
All of them (at least in high-end) should. It's the best way to manage the two standards, balanced vs unbalanced (you bet I'm a "balanced" afficionado!) and their very different levels.

This post is made possible by the generous support of people like you and our sponsors:

Kimber Kable

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---