If you want to get serious about active and don’t care about analog then get a mini dsp nano digi, two DACs and two stereo amps or four monos. The nano digi is only digital in and digital out, thereby not tying you to inbuilt DACs or amps of substandard quality.
Altec Lansing’s Voice of the Theatre Speakers - What You Need to Know
A design by John Hilliard, Altec Lansing Voice of the Theatre systems originally targeted movie theaters. The entire series was gradually expanded for use in general sound reinforcement and later converted in extreme high-end audio segments for hi-fi home use. Dorsey knows cinema sound inside...audioxpress.com
After reading the above article, I had decided to go for active bi amplification without using internal network.
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I use Lyngdorf 2170 which has speaker output, analog output and digital output with highpass or lowpass options.
I set the highpass at 500hz on digital output and going through my dac and integrated amp to drive treble horn.
Initially, I had tried to use speaker output of Lyngdorf 2170 with lowpass at 500hz to drive bass unit of Altec A7.
But bass sound is lagging behind the sound from treble horn.
Thus I had used analog output with lowpass at 500hz to Crown XLS 2502 which drive
bass unit of Altec A7.
But bass sound is still lagging behind the sound from treble horn.
Then I had used analog output with lowpass at 500hz to Rogue Cronus Magnum II which drive
bass unit of Altec A7.
Now it is working fine with treble horn.
Many people may think that SS amp sounds faster than tube amp but it is on the contrary.
I had used Telefuken ECC 83 and Amperex ECC 82 in Rogue, but after replacing Amperex with GE 12bh7a tubes, Rogue sound more robust on bass.
After getting rid of internal network, Altec A7 sounds more transparent with clean details.
Since I am happy with sound out of Altec A7 after active bi amping, I retired Lansche 4.1 to attic on the third floor.
Please note that I had been using Lansche 4.1 since 2006 after buying it new at 50k$.
P. S. ticking noise is from my chair while I reord the music sitting in the sofa.
Modern speakers vs Vintage speakers
- Thread starter thomask
- Start date
The little box on the floor left is the nano digi. Two DACs, a Metrum Octave mkii and Monarchy M24 are for the mid/bass and mid/high, respectively. The bass amp is the Ayon Spark and the mid/high horn is driven by the 300b monos (LD+ 91 monos).
A nelson pass active analog xover, i think a good option for A7
www.pureaudioproject.com
PAP-C1, Custom Active Analog Crossover for Open Baffle - PureAudioProject
www.pureaudioproject.com
I put Denafris Gaia DDC between Lyngdorf 2170 and Dac(EmmLab Dac 2, Chord Dave and Mscaler) for digital signal of 500hz and up.
Line Magnetic 508 seems to work better with Emmlab Dac 2 while Cayin 300b pp works well with Dave.
I will also put Cayin 3oob pp back into rack after further organization.
The bass amplifier(Rogue Cronus Magnum II) is driven by Lyngdorf 2170 analog output which is pretty good for 500 hz and down.
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ThanksA nelson pass active analog xover, i think a good option for A7
PAP-C1, Custom Active Analog Crossover for Open Baffle - PureAudioProject
I will go into more details of the product.
The only advantage of a digital xover is that you can change the frequency response without changing the phase. in all other matters it is worse. You have to work with at least 24 bit so that you have at least 16 bit resolution at low volume.
a common problem with digital xover and digital volume control i'm not a fan of it
a common problem with digital xover and digital volume control i'm not a fan of it
Lyngdorf 2170 appears to work at 24 bit resolution.
It is much better quality than Mini DSP.
So far it seems to work well judging from the actual sound.
And this Heifetz interpretation is recorded from a Lenco and Shure, straight from the phono into a Tascam
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“Here's the Tchaikovsky 3rd movement with David Oistrakh and Kondrashin”
Errrrr … thats not exactly coming across well at all , whether the original media recording or the recording of the recording on that particular system I’m unsure tho I suspect the latter.
Errrrr … thats not exactly coming across well at all , whether the original media recording or the recording of the recording on that particular system I’m unsure tho I suspect the latter.
I think the match between the Lyngdorf amp and a tube amp for the horn will cause integration issues...I have found the amps either need to be identical or of the same type (SET, triode PP etc.) for all drivers. That is why I recommended something digital that allows yOu to do that without it’s own analog electronics... Another one that does it is a DBX but one of the upper models...the basic driverack is only analog out. The Accuphase F25 is good if you can find one for an analog xover. Accuphase has nice digital xovers as well...there the quality of the analog output is not much in question.
The system recording is poor...exactly the kind of argument a solidstate with Magico guy would make for what is wrong with tubes, analog and horns. Very colored and overall low resolution.
The recording direct to TASCAM is quite good and shows you don't need a super high end analog rig to get a great sound from vinyl.
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