NHB-18NS preamp with Burmester 911 amps?

[joeinid]

Does anyone have experience with this combo? Thanks!

Output impedance for the NHB-18NS: 50 ohms for BNC, < 100 ohms for RCA, 600 ohms for XLR

Burmester 911mk3 input impedance: 22.9kOhms Unbalanced, 1.88kOhms Balanced

 

[wizard]

From Stereophile
18NS output impedance:
unbalanced - 20Hz/1kHz 155 ohm, 20kHz 410ohm.
balanced - 20Hz/1kHz 2500ohm, 20kHz 3080 ohm.

I-Fidelity
911 input impedance 12k

 

[AudioExplorations]

wizard where do you get the 911 input impedance info from? thanks.

 

[joeinid]

I'm so confused.

 

[wizard]

wizard where do you get the 911 input impedance info from? thanks.

From this German review

 

[AudioExplorations]

The 911 input impedance remains a mystery.

Burmester manual: 1.88 kOhm (balanced), 22.9 kOhm (unbalanced)
i-fidelity.net measurement: 12 kOhm (connection type not specified)
My personal measurement: 2.05 kOhm (balanced), 1.01 kOhm (unbalanced)

 

[joeinid]

The 911 input impedance remains a mystery.

Burmester manual: 1.88 kOhm (balanced), 22.9 kOhm (unbalanced)
i-fidelity.net measurement: 12 kOhm (connection type not specified)
My personal measurement: 2.05 kOhm (balanced), 1.01 kOhm (unbalanced)

This is one personal pet peeve of mine and Burmester, their lack of published credible information. Just look at the internal fuse misinformation.

 

[wizard]

The Swedish magazine Hifi&Musik measure the balanced input impedance to 1,5k.

And the output power to: 8/4/2/1ohm 195/344/545/723watts.


18NS connected to 911 using the unbalanced input should be no problem, also no problem if the 911 unbalanced input impedance is 12k.

 

[AudioExplorations]

Well, a few others on this forum run ARC and concert fidelity preamps into the 911 balanced without issues, so the 1:10 impedance rule may not be the determining factor after all.

 

[Rocco I.]

I'm so confused.

Dear Joe,

I thought that from very long time!

Sorry for the frankness of opinion!

 

[joeinid]

Dear Joe,

I thought that from very long time!

Sorry for the frankness of opinion!

That you are confused or I am confused I'm kidding, Don't be sorry, I appreciate your frankness dearly.

 

[Rocco I.]

That you are confused or I am confused I'm kidding, Don't be sorry, I appreciate your frankness dearly.

You're confused ...

What you need in your systems is a top digital source because you've already in your hands reference amps (burmester and dartzeel).

Of course this is my opinion.

 

[MylesBAstor]

You're confused ...

What you need in your systems is a top digital source because you've already in your hands reference amps (burmester and dartzeel).

Of course this is my opinion.

Rocco: have you heard the Audio Logic DAC? Jerry Ozment, now deceased, was a damn good digital designer and flew under the radar to most people.

 

[joeinid]

Rocco: have you heard the Audio Logic DAC? Jerry Ozment, now deceased, was a damn good digital designer and flew under the radar to most people.

Myles,

Not very many people know how good my Audio Logic dac sounds. I've had that dac 9 years and it was upgraded by Jerry once to the 24MXL. Can anyone name a piece of year they have been using that long, especially digital?

 

[Thf99]

Myles,

Not very many people know how good my Audio Logic dac sounds. I've had that dac 9 years and it was upgraded by Jerry once to the 24MXL. Can anyone name a piece of year they have been using that long, especially digital?

Joe,
I had mine (Audio Space) for about 10 years if I remember correctly. I had it modified extensively by changing all the capacitors to blackgates and by replacing all the wiring to a much higher grade one. The connectors were also all upgraded. To this day, it still serves me well.

 

[joeinid]

Hi Thf99,

Excellent. Sometimes us "audiophiles" do hold onto great gear, despite out best efforts.

 

[MarinJim]

I had a highly modded Conrad Johnson Premier 9 dac designed by Jerry. To this day I am sorry I sold it. May he R.I.P.

 

[Rocco I.]

Rocco: have you heard the Audio Logic DAC? Jerry Ozment, now deceased, was a damn good digital designer and flew under the radar to most people.

Sorry no experience with that dac.