Mosconi AS100.4 Vs. Stereo Integrity SIQ75x4

[Doxquzme Premium Member]

I am considering replacing my Helix B FOUR and have an opportunity to purchase either the Mosconi or the Stereo Integrity 4 channel amplifiers. These will power dome mids and tweeters in my front stage, lower end midbass powered by Focal FDP 4.600, all are active using existing AudioControl DSP DM810. Close output specs, same S/n specs, similar in performance.

I am active so onboard x-overs not important (unless reselling comes into play). I'm leaning towards the Si for a couple of reasons.

Si SIQ75.4
Pure, uncluttered signal path, straight SQ, minimaL processing from the amplifier.
More than enough power for two Kappa 203s domes and CDT ES-1200is tweeters
The aesthetics - can't deny the "WOW" factor of the build!
Bipolar mosfets
Made in America (okay, cool but not the decisive factor)

SIQ 125.4 (Class A/B) – StereoIntegrity.com

Hi-Fi class A/B and class D amplifiers are back with our SIQ amplifiers. Full bandwidth, zero filters, discrete gain knob per channel, zero crossovers, zero EQ. Purity at its finest. Being avid audiophiles for over 25 years we have always appreciated the finer performing amplifiers in mobile...

stereointegrity.com

On the other hand...

While the Mosconi has features that I won't use, the resale aspect (full electronic features, x-overs and such)make the resale potential appealing.
The price is outstanding, someone that needs to move some gear.
More power than I will need
Stellar reputation
Probably equal in SQ to the Si

AS 100.4 Mosconi America / Gladen Audio America

Hi-End Audio Equipment made in Italy and Germany

mosconi-america.com

Arghhh, such a dilemma!

What sayeth you and why!

Click to read more...

 

[spokey9 5,000+ posts]

DI550.4 Full-Range Class-D 4-Channel Car Audio Amplifier, 1,040 Watts, 2-4 Ohm Stable, Mosfet Power Supply, Bridgeable – Recoil Audio

www.recoilaudio.com

 

[winkychevelle 10+ year member]

I am considering replacing my Helix B FOUR and have an opportunity to purchase either the Mosconi or the Stereo Integrity 4 channel amplifiers. These will power dome mids and tweeters in my front stage, lower end midbass powered by Focal FDP 4.600, all are active using existing AudioControl DSP DM810. Close output specs, same S/n specs, similar in performance.

I am active so onboard x-overs not important (unless reselling comes into play). I'm leaning towards the Si for a couple of reasons.

Si SIQ75.4
Pure, uncluttered signal path, straight SQ, minimaL processing from the amplifier.
More than enough power for two Kappa 203s domes and CDT ES-1200is tweeters
The aesthetics - can't deny the "WOW" factor of the build!
Bipolar mosfets
Made in America (okay, cool but not the decisive factor)

SIQ 125.4 (Class A/B) – StereoIntegrity.com

Hi-Fi class A/B and class D amplifiers are back with our SIQ amplifiers. Full bandwidth, zero filters, discrete gain knob per channel, zero crossovers, zero EQ. Purity at its finest. Being avid audiophiles for over 25 years we have always appreciated the finer performing amplifiers in mobile...

stereointegrity.com

On the other hand...

While the Mosconi has features that I won't use, the resale aspect (full electronic features, x-overs and such)make the resale potential appealing.
The price is outstanding, someone that needs to move some gear.
More power than I will need
Stellar reputation
Probably equal in SQ to the Si

AS 100.4 Mosconi America / Gladen Audio America

Hi-End Audio Equipment made in Italy and Germany

mosconi-america.com

Arghhh, such a dilemma!

What sayeth you and why!

I don't think the stereo integrity are American made infact I'm quite certain they are made in Korean. Stereo integrity has no production capabilities and really only the ability to assemble subs from parts suppliers.

This isn't really an issue since Nick sources good products and usually has pretty good QC.

The mosconi has been a solid product for a while but I'd be looking for a used 4|10 over the as line.

And your helix isn't a slouch either and I really don't know what you plan to gain from the swap.

 

[Doxquzme Premium Member]

I don't think the stereo integrity are American made infact I'm quite certain they are made in Korean. Stereo integrity has no production capabilities and really only the ability to assemble subs from parts suppliers.

This isn't really an issue since Nick sources good products and usually has pretty good QC.

The mosconi has been a solid product for a while but I'd be looking for a used 4|10 over the as line.

And your helix isn't a slouch either and I really don't know what you plan to gain from the swap.

Appreciate it.

If for no other reason, to be able to open the hatch and say to friends and myself, look at that!

Kind of old-school when it comes to mids/highs, like A/B and the Helix is great. I love that the Si has a direct signal path too. Could always keep the Helix around as a backup.

Still, can't deny that the Si is a thing of beauty for sure...

 

[Doxquzme Premium Member]

Additionally I am considering putting the Helix in my brothers 68 Chevelle SS rest-O-mod build. A little spruce up to the GM-D8604 he's currently using.

 

[1aespinoza Premium Member]

What sayeth you and why!

The SI because it has pouty lips and a button nose.