News:
January 30, 2023, 08:41:15 PM
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email
?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Home
Help
Login
Register
Bottlehead Forum
»
Bottlehead Kits
»
BeePre
»
BeeQuiet attenuator
»
Max attenuation not enough?
« previous
next »
Print
Search
Pages: [
1
]
Go Down
Author
Topic: Max attenuation not enough? (Read 2142 times)
0 Members and 1 Guest are viewing this topic.
oltmb
Jr. Member
Posts: 21
Max attenuation not enough?
«
on:
April 17, 2017, 09:26:59 PM »
I have the Beepre/BeeQuiet connected to a NAIM NAP100 poweramp. It has 18K input impedance and 29dB gain. I have added a 10dB attenuator between the pre and power amp but with the BeeQuiet in max attenuation I still have sound coming out of the speakers (around 60dB SPL).
Is my input signal too high? I am just using a regular DAC (Chord 2Qute) and using the RCA inputs.
What can I do to make it completely mute in the lowest position (-52.5 dB) ?
Logged
Main System:
Sonus Faber Olympica III
McIntosh MA7900
iFi iUSB 3.0
Tara Labs Cables
Macbook Pro/Audirvana/Dirac
ISOL-8 Wave Power Conditioner
Second System:
Beepre
NAIM NAP100
Focal Aria 900
Chord 2Qute DAC
Zimmer64
Full Member
Posts: 210
Re: Max attenuation not enough?
«
Reply #1 on:
April 18, 2017, 01:28:44 AM »
Hi,
I don't have a BeePre, but if you've done the wiring correctly,then this should not be the case. I suggest to check your wiring again. You may also want to post a picture of your wiring here.
Kind regards
Michael
Logged
Nelson Pass F5 Turbo V2, Quickie (mod), S.E.X. 2.1, Tubes4hifi SP14, Dynaco VTA ST 70, Tubelab SSE, Vroemen Diva Superiore ER4, Jordan JX92S VTL, 47 labs 0647 CD, Aqvox DAC, Rowen Absolute pre / psu / power amps, BG Neo3 / Betsy / Eminence A15 open baffles
oltmb
Jr. Member
Posts: 21
Re: Max attenuation not enough?
«
Reply #2 on:
April 18, 2017, 09:58:54 AM »
Ok. Will check it and post a picture later if needed. I replaced the tubes to JJ's and that made a difference also.
Logged
Main System:
Sonus Faber Olympica III
McIntosh MA7900
iFi iUSB 3.0
Tara Labs Cables
Macbook Pro/Audirvana/Dirac
ISOL-8 Wave Power Conditioner
Second System:
Beepre
NAIM NAP100
Focal Aria 900
Chord 2Qute DAC
oltmb
Jr. Member
Posts: 21
Re: Max attenuation not enough?
«
Reply #3 on:
April 18, 2017, 09:32:19 PM »
I checked all the wiring and it looks ok. Here is a picture:
(https://image.ibb.co/jW5BJ5/Be_Quiet_oltmb.gif)
Logged
Main System:
Sonus Faber Olympica III
McIntosh MA7900
iFi iUSB 3.0
Tara Labs Cables
Macbook Pro/Audirvana/Dirac
ISOL-8 Wave Power Conditioner
Second System:
Beepre
NAIM NAP100
Focal Aria 900
Chord 2Qute DAC
Doc B.
Administrator
Hero Member
Posts: 9250
Re: Max attenuation not enough?
«
Reply #4 on:
April 19, 2017, 04:23:45 AM »
The lowest level position does not mute, it attenuates -52.5 dB. The way that the attenuator is wired precludes the inclusion of a mute (i.e. signal shorted to ground) setting. If you are finding that the entire range of the volume control is too high, you are on the right track of either lowering the output level of your source or using a larger value attenuator between the BeePre and the amp.
If the listening level range is OK and you just want a mute you can always switch the source selector to a source setting that is not playing. That's what I do in our listening room.
Logged
Dan "Doc B." Schmalle
President For Life
Bottlehead Corp.
Paul Birkeland
Global Moderator
Hero Member
Posts: 17914
Re: Max attenuation not enough?
«
Reply #5 on:
April 20, 2017, 06:12:19 AM »
It may also be helpful to know what speakers the Naim is driving.
If you have an amp with 26dB of gain hooked up to a pair of 100+dB sensitive horn speakers, this kind of problem is bound to arise if you believe that the lowest level setting is well beyond what would be considered a very low listening level.
«
Last Edit: April 21, 2017, 08:09:21 AM by Caucasian Blackplate
»
Logged
Paul "PB" Birkeland
Bottlehead Grunt & The Repro Man
oltmb
Jr. Member
Posts: 21
Re: Max attenuation not enough?
«
Reply #6 on:
April 20, 2017, 07:27:37 AM »
The speakers are Focal Aria 906. Sensitivity: 86.8 dB. So that is not too sensitive I think.
I am happy as it is now. I can mute by rotating the input selector switch to an unused input channel.
Logged
Main System:
Sonus Faber Olympica III
McIntosh MA7900
iFi iUSB 3.0
Tara Labs Cables
Macbook Pro/Audirvana/Dirac
ISOL-8 Wave Power Conditioner
Second System:
Beepre
NAIM NAP100
Focal Aria 900
Chord 2Qute DAC
Print
Search
Pages: [
1
]
Go Up
« previous
next »
Bottlehead Forum
»
Bottlehead Kits
»
BeePre
»
BeeQuiet attenuator
»
Max attenuation not enough?