Thread: Boulder amp with tube preamp
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July 2, 2019, 02:17 AM #1
- Join Date
- May 2019
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- Malaysia
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Boulder amp with tube preamp
Hi all,
Just wondering if anyone uses this combination the - tube preamp used is the VAC Signature Mk IIa SE ? Thanks.
Sent from my iPhone using TapatalkTurntable: VPI Prime - Ortofon Quintet S Black - VPI ADS
Digital Source: dCS Bartok w/headphone amp
Preamp: Soulution 520
Amplifier: Soulution 511
Speakers: Rockport Atria II
Power conditioning- Shunyata Research Denali 6000T v1
Power cord: AQ Thunder/Transparent Audio XL Gen 6
Interconnect: Transparent Audio Super Gen 5 XLR and tonearm cable / Transparent Audio Gen 6
Rack: Critical Mass Sotto Voce/ Critical Mass Black Platinum/MXR spike
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July 4, 2019, 12:37 AM #2
Re: Boulder amp with tube preamp
I heard a Boulder amp with an ARC Ref 6 and was the best I’ve heard a Boulder amp sound (personal opinion only) I think the results with the VAC would be similar. Would probably want to try it first though.
George
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July 4, 2019, 02:49 AM #3
- Join Date
- May 2019
- Location
- Malaysia
- Posts
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Re: Boulder amp with tube preamp
Turntable: VPI Prime - Ortofon Quintet S Black - VPI ADS
Digital Source: dCS Bartok w/headphone amp
Preamp: Soulution 520
Amplifier: Soulution 511
Speakers: Rockport Atria II
Power conditioning- Shunyata Research Denali 6000T v1
Power cord: AQ Thunder/Transparent Audio XL Gen 6
Interconnect: Transparent Audio Super Gen 5 XLR and tonearm cable / Transparent Audio Gen 6
Rack: Critical Mass Sotto Voce/ Critical Mass Black Platinum/MXR spike
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July 5, 2019, 04:24 PM #4
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July 5, 2019, 07:29 PM #5
- Join Date
- May 2019
- Location
- Malaysia
- Posts
- 155
Re: Boulder amp with tube preamp
George
All VAC with Atria IIs you mean? VAC man, Kevin Hayes approves of this combination.
Sent from my iPhone using TapatalkTurntable: VPI Prime - Ortofon Quintet S Black - VPI ADS
Digital Source: dCS Bartok w/headphone amp
Preamp: Soulution 520
Amplifier: Soulution 511
Speakers: Rockport Atria II
Power conditioning- Shunyata Research Denali 6000T v1
Power cord: AQ Thunder/Transparent Audio XL Gen 6
Interconnect: Transparent Audio Super Gen 5 XLR and tonearm cable / Transparent Audio Gen 6
Rack: Critical Mass Sotto Voce/ Critical Mass Black Platinum/MXR spike
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July 5, 2019, 10:37 PM #6
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July 6, 2019, 02:47 AM #7
- Join Date
- Jan 2014
- Location
- Los Angeles
- Posts
- 1,775
Re: Boulder amp with tube preamp
You should confirm the output/input impedance multiple/rule to be sure.
Brinkmann Bardo w/ EMT HSD-006 cart, MSB Reference DAC --> Linear Tube Audio MicroZOTL --> Ampzilla 2000, 2nd Edition --> Fyne Audio F1-12
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July 6, 2019, 09:50 AM #8
Re: Boulder amp with tube preamp
VAC preamp with Boulder amp should be fine with the specs on their websites ... Vac Preamp Output impedance < 150ohms and the Boulder amp Input Impedance at 200K Ohms assuming balanced operation. Still would recommend listening to the combo to be sure they sound good together.
George
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July 19, 2019, 04:23 PM #9
Re: Boulder amp with tube preamp
It would also be prudent to see if the preamp supports the balanced standard. It'll sound better on that account alone.
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