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Naim 62 service
2017-09-30, 22:12 (This post was last modified: 2017-09-30 22:13 by chrisk09.)
Post: #1
Naim 62 service
Hi Everyone,

I recently got my Lingo 1 and Nain 62 preamp serviced and recapped at ClassA in Sheefied. Having had them back for a few weeks now I am finding that I am unable to turn the preamp up past quarter volume as the volume is so loud. I have notice a big improvement in dynamics and clarity since the work was done but I am unsure that there should be so much difference in volume.

it is definitely the preamp as I an experiencing similar on other sources (eg. My Cambridge Audio streamer).
Any ideas?

LP12/Cirkus/Tranquility/Kore/Trampolinn 2, Lingo 1, Ekos 1, DV-10x5, iFi iPhono, Naim 62/140 HiCap, Shahinian Arcs, Cambridge CNX Streamer (and a now redundant Naim CD3!)
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2017-09-30, 22:15
Post: #2
RE: Naim 62 service
Try the Naim forum?

Main: AK/0/D; AEDSM; MeiCord AExaktbox10; Silvers 2x A4200/1; K400 NSL Exakt dual-mono PMC Twenty.26; Twenty.C; Blacks AV5125 PMC Twenty.21
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2017-10-01, 11:44 (This post was last modified: 2017-10-01 12:07 by What You See and Hear.)
Post: #3
RE: Naim 62 service
(2017-09-30 22:12)chrisk09 Wrote:  Hi Everyone,

I recently got my Lingo 1 and Nain 62 preamp serviced and recapped at ClassA in Sheefied. Having had them back for a few weeks now I am finding that I am unable to turn the preamp up past quarter volume as the volume is so loud. I have notice a big improvement in dynamics and clarity since the work was done but I am unsure that there should be so much difference in volume.

it is definitely the preamp as I an experiencing similar on other sources (eg. My Cambridge Audio streamer).
Any ideas?

Hi

To save having to join the Naim forum just to ask one question I can tell you this is absolutely normal on a healthy old style Naim Pre-Amp.

Any 2 volt input like a CD player or streamer will be very loud at 9 o'clock on the volume control. If the volume control is properly aligned on it's stub volume zero start point is at 7 o'clock, and maximum gain wih huge distortion, blowing up your system and ears is at 5 o'clock. This span on the control is correct and the stop points should be at 7 o'clock min and 5 o'clock max.

A turntable with MM or MC cartridge with the correct cards in a pre-amp like 42, 42.5, 32, 32.5, 62, 72 will only become loud at about 2 o'clock on the volume control. This disparity is normal and although in the 1980's it may have been possible to slug the line level inputs to lower the sensitivity this would have compromised transparency.

Naim did make an adjustable filter card for their pre-amps when CD first came out in 1980's with a potentiometer and this also had some high frequency filtering to tame the nasty CD players at the time. It was made for people who wanted convenience over performance but when digital started to improve later Naim's designers like Julian Vereker and Guy Lamotte didn't recommend as the boards sounded worse hence the 9 o'clock and 2.00 disparity.

It was called the 328 board and probably crops up secondhand now and again but from memory can only be used as a substitute for the NAC 62 turntable phono cards. If one had a NAC 32, NAC 32.5 or NAC 72 then you could use both the turntable phono and 328 boards using phono 1 for the turntable and phono 2 for the CD player. This can align CD volume with the turntable provided the owner doesen't mind lower performance.

Regards

Colin Macey. WYSAH Beaconsfield.

www.whatyouseeandhear.com
www.wysah.com
01494 681300.
email colin@wysah.com
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2017-10-01, 13:31
Post: #4
RE: Naim 62 service
(2017-10-01 11:44)What You See and Hear Wrote:  
(2017-09-30 22:12)chrisk09 Wrote:  Hi Everyone,

I recently got my Lingo 1 and Nain 62 preamp serviced and recapped at ClassA in Sheefied. Having had them back for a few weeks now I am finding that I am unable to turn the preamp up past quarter volume as the volume is so loud. I have notice a big improvement in dynamics and clarity since the work was done but I am unsure that there should be so much difference in volume.

it is definitely the preamp as I an experiencing similar on other sources (eg. My Cambridge Audio streamer).
Any ideas?

Hi

To save having to join the Naim forum just to ask one question I can tell you this is absolutely normal on a healthy old style Naim Pre-Amp.

Any 2 volt input like a CD player or streamer will be very loud at 9 o'clock on the volume control. If the volume control is properly aligned on it's stub volume zero start point is at 7 o'clock, and maximum gain wih huge distortion, blowing up your system and ears is at 5 o'clock. This span on the control is correct and the stop points should be at 7 o'clock min and 5 o'clock max.

A turntable with MM or MC cartridge with the correct cards in a pre-amp like 42, 42.5, 32, 32.5, 62, 72 will only become loud at about 2 o'clock on the volume control. This disparity is normal and although in the 1980's it may have been possible to slug the line level inputs to lower the sensitivity this would have compromised transparency.

Naim did make an adjustable filter card for their pre-amps when CD first came out in 1980's with a potentiometer and this also had some high frequency filtering to tame the nasty CD players at the time. It was made for people who wanted convenience over performance but when digital started to improve later Naim's designers like Julian Vereker and Guy Lamotte didn't recommend as the boards sounded worse hence the 9 o'clock and 2.00 disparity.

It was called the 328 board and probably crops up secondhand now and again but from memory can only be used as a substitute for the NAC 62 turntable phono cards. If one had a NAC 32, NAC 32.5 or NAC 72 then you could use both the turntable phono and 328 boards using phono 1 for the turntable and phono 2 for the CD player. This can align CD volume with the turntable provided the owner doesen't mind lower performance.

Regards

Sorry I forgot to say I am running my LP12 through the AUX input via a ifi iphono1 phono amp. the cartridge is a DV10X5 at 40db gain. This is the same as before the Naim 62 preamp service... I am not using the Naim phono board which is for MC (Arkiv)
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2017-10-01, 14:16 (This post was last modified: 2017-10-01 14:16 by What You See and Hear.)
Post: #5
RE: Naim 62 service
(2017-10-01 13:31)chrisk09 Wrote:  
(2017-10-01 11:44)What You See and Hear Wrote:  [quote='chrisk09' pid='452289' dateline='1506805925']

Hi

This is absolutely normal on a healthy old style Naim Pre-Amp.

Any 2 volt input like a CD player or streamer will be very loud at 9 o'clock on the volume control. If the volume control is properly aligned on it's stub volume zero start point is at 7 o'clock, and maximum gain wih huge distortion, blowing up your system and ears is at 5 o'clock. This span on the control is correct and the stop points should be at 7 o'clock min and 5 o'clock max.

Regards

Sorry I forgot to say I am running my LP12 through the AUX input via a ifi iphono1 phono amp. the cartridge is a DV10X5 at 40db gain. This is the same as before the Naim 62 preamp service... I am not using the Naim phono board which is for MC (Arkiv)

Hi

I have just edited so the relevant part for you is left. Any 2 volt input, (the iPnono will have RIAA'd the cartridge and amplifiied to this level) will be loud at 9.00 on the pre-amps mentioned. Possible your own pre-amp was so old before service. (25+ years) that it was no longer functioning correctly and had lost gain due to worn capacitors, hence the difference. Darren is excellent at his work and your pre-amp will be functioning with "as new" performance.

As someone who once owned Naim 42.5 and 32.5 pre-amps and sold Naim amplifiers and many makes of Compact Disc player since CD was launched 1983 I know this is normal on a pre-amp working properly.

Regards.

Colin Macey. WYSAH Beaconsfield.

www.whatyouseeandhear.com
www.wysah.com
01494 681300.
email colin@wysah.com
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2017-10-01, 16:52
Post: #6
RE: Naim 62 service
Yup, entirely normal but fortunately easy to live with as the Naim volume control is easy to adjust to just the right level.

CJ

Main: Michell Orbe/SME V/Lyra Delos/CA 640p Oppo105 Marantz AV8801 Linn 5125 Dynamik Focal Diablo Utopia III Komponent106 Komponent104

Profession: Owner of Krescendo HiFi - Specialist in second hand Linn and Naim
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2017-10-01, 19:55
Post: #7
RE: Naim 62 service
(2017-10-01 14:16)What You See and Hear Wrote:  
(2017-10-01 13:31)chrisk09 Wrote:  
(2017-10-01 11:44)What You See and Hear Wrote:  [quote='chrisk09' pid='452289' dateline='1506805925']

Hi

This is absolutely normal on a healthy old style Naim Pre-Amp.

Any 2 volt input like a CD player or streamer will be very loud at 9 o'clock on the volume control. If the volume control is properly aligned on it's stub volume zero start point is at 7 o'clock, and maximum gain wih huge distortion, blowing up your system and ears is at 5 o'clock. This span on the control is correct and the stop points should be at 7 o'clock min and 5 o'clock max.

Regards

Sorry I forgot to say I am running my LP12 through the AUX input via a ifi iphono1 phono amp. the cartridge is a DV10X5 at 40db gain. This is the same as before the Naim 62 preamp service... I am not using the Naim phono board which is for MC (Arkiv)

Hi

I have just edited so the relevant part for you is left. Any 2 volt input, (the iPnono will have RIAA'd the cartridge and amplifiied to this level) will be loud at 9.00 on the pre-amps mentioned. Possible your own pre-amp was so old before service. (25+ years) that it was no longer functioning correctly and had lost gain due to worn capacitors, hence the difference. Darren is excellent at his work and your pre-amp will be functioning with "as new" performance.

As someone who once owned Naim 42.5 and 32.5 pre-amps and sold Naim amplifiers and many makes of Compact Disc player since CD was launched 1983 I know this is normal on a pre-amp working properly.

Regards.

Thanks Colin, understand your drift now. I am not complaining as my system now sounds stunning compared with before Darren's work was done. Just do dynamic, detailed and musical..

LP12/Cirkus/Tranquility/Kore/Trampolinn 2, Lingo 1, Ekos 1, DV-10x5, iFi iPhono, Naim 62/140 HiCap, Shahinian Arcs, Cambridge CNX Streamer (and a now redundant Naim CD3!)
Find all posts by this user
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