General SQ General discussion of Sound Quality related issues.

Simplifying - amps onboard digital processors

Old Mar 27, 2005 | 07:37 AM
  #22  
Mr. Marco's Avatar
1000 Watt CAFz'r
iTrader: (19)
 
Joined: May 2001
Posts: 1,221
Post

if its who i'm thinking about, yeppers... seen his kicks Adam? i think they are worth more than my car!
Old Mar 27, 2005 | 05:55 PM
  #23  
geolemon's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Oct 2003
Posts: 113
Post

Originally posted by Mr. Marco:
...you might want to look into an alpine deck to match with the H700 since many a people have mentioned the clear difference from using the digital input capability of the H700...
I've got an Alpine deck currently - and I wasn't looking to swap it out (I've got the same deck in my Pathfinder). It's a 7894, and it doesn't have any digital outputs.
As a matter of fact... while I'm no expert on this year's line... I believe it used to be that there was only one model - the F#1 deck - that had digital outputs anyway?
MDXman lives 15 minutes from me.. he's got that deck, and the PXA-H900. Nice setup, but pretty bad on a bang-for-the-buck standpoint... and not important for competition, but the deck didn't do MP3's either... and my whole punk rock collection that I used to have on cassette tapes when I was a kid I burned to MP3 discs so I wouldn't lose them.
Originally posted by Mr. Marco:
further there have been noise issues reported from using the analog inputs.
Of the H701, you are saying?
I haven't heard that... but obviously I do need a silent car (which I don't have right now).
Noise is usually one of those things that is not caused by your componentry, however.. so I am a bit skeptical about claims like this.
In other words, lots of people buy "high end" gear, and expect that to solve all their problems... and are disappointed when they still have noise from their shadetree install, etc. [img]graemlins/freak.gif[/img]
Originally posted by Mr. Marco:
another piece you might look at which has its ups and downs is the Altomobile Drive30...if you hook it up to a laptop, this thing is incredible! after playing with both the H700 and the Drive 30, i prefered the set-up of the Drive30 (lots of parmametric EQ, time alignment, flexible Xovers, the works... and it tunes alot easier than the menu driven H700.
Very interesting suggestion!
No one sells Altomobile around here... unless you know someone in Southern Ontario, reasonably close to the US border / peace bridge at the end of the QEW?
As I mentioned before, this is going to be a sponsored car... and this shop is looking to expand into some very high-end offerings (I'll keep the board updated with the uber-high-end listening room going in... Audison Thesis amps, Utopia Be components, etc. ).
I've got some pull as to what lines... I'll have to suggest this one.
I grabbed their lit at CES this year, and I've always been intrigued by their flat piston sub (check out the rear suspension on that sub... find it? ).
Anyway...
Originally posted by Mr. Marco:
As for simplicity and price, you can set up a well tuned system with the dsp in the SX amps without external processing... seems like that was your original goal. if you find that you need more control at a future point, the H700 should be an easy addition and would not detract from the functionality of the remainder of the install, so why not have the H700 and the SX amps (i find it very hard to justify paying $3000 for a Tru amp... don't get me wrong, i wouldn't kick it out of my car.)
hummmm
True.
SX amps now... H700 later if justified.
Or Altomobile later if justified.

My only hesitation is that I really haven't had any time at all with any SX amps at all... to say nothing of hearing them in a high-end SQ car.

It's difficult to audition amps to begin with... because there's SO much in the signal chain that can detract from the sound.
In auditioning, you can't ever hear a bad install and blame it on the amps.. you just dont' know.
All you can know is if you do hear a stellar install, you know that amplifier wasn't a bottleneck... and that's a good thing.
But a pain in the butt for auditioning.

I'm still leaning towards the SX's fundamentally, from a practicality standpoint.
Biggest bang-for-the-buck for sure.
Old Mar 27, 2005 | 06:03 PM
  #24  
geolemon's Avatar
Thread Starter
50 Watt CAFz'r
 
Joined: Oct 2003
Posts: 113
Post

Originally posted by PLOW:
hi geolemon
marco told me about your problem today.
I’m using h701 right now, thing is amazing, very flexible with the crossover, parametric eq, time alignment. You cannot compare this kind of processor with onboard amp processor; I think is worth it to spend money on processor.
For amplifier marco and me already compared butler td475 vs c7, and we both agree there is a big different in the soundstage, c7 are more focus, detailed and higher soundstage. About tonality we still not sure if we can both amps sound the same with eq.
That’s why in 1-2 week depending on when my vrx coming, marco, me and chinaman will make a blind test (the listener will not know what amp is installed).
We will compare tru c7, audison vrx4.300, dls a3, brax x1000 and marco will bring his mcintosh and kicker sx.
If you interested you can come and compare it yourself.
Sounds like fun...
How are you doing the testing?
I have an oscilliscope I could bring to aid in setting gain adjustments uniformly.

The only thing is, you only have high-end amps here.
I'd hope you wouldn't here any differences... if so, that speaks poorly for one of them.

It would be interesting to compare a more modest amplifier - or one that wouldn't be expected to be decent.
For example, last year I picked up an Earthquake PHD2 to play with... and a matching PH2.5 (a 2 channel amp from the same series).
While the PHD2 sounds like mud as you might expect, what I didn't expect was that this PH2.5 sounds really nice.

What might be even more interesting would be to compare something really cheap... a Profile amp, for example.
Let me know, if you are interested, I can grab something from our inventory... that would add an interesting aspect to the testing, I think.

Regardless, I'm definitely interested in seeing how well the SX amp compares to the VRx amp - that being the one I'm most familiar with (after Audison's SRx line).
Tru and DLS we haven't gotten our hands on yet, so while their reputation preceeds them... devil's advocacy is too much in my blood to even think about committing to something purely on reputation.
Old Mar 27, 2005 | 08:21 PM
  #25  
Mr. Marco's Avatar
1000 Watt CAFz'r
iTrader: (19)
 
Joined: May 2001
Posts: 1,221
Post

As for the testing, we can throw some 'other' stuff in there... i have a crunch amp, Plow has a hifonics and an Xtant laying around, i'm sure Eddy has a couple other amps too... lots to play around with. btw i also feel your pain on the comparison... i'd hate to see the look on plow's face when eh can't tell which amp his Tru is or he chooses some other amp as sounding better than his!!
both Eddy and Plow have osciloscopes... but would you have access to an RTA? i have the Altomobile and Plow has the H700... oh boy oh boy oh boy! i'm getting a hard on!
Old Mar 27, 2005 | 08:44 PM
  #26  
PEI330Ci's Avatar
1000 Watt CAFz'r
 
Joined: Oct 2003
Posts: 1,783
Post

When is this test Mr.Marco?
Old Mar 28, 2005 | 06:14 AM
  #29  
Mr. Marco's Avatar
1000 Watt CAFz'r
iTrader: (19)
 
Joined: May 2001
Posts: 1,221
Post

tentatively for April 2nd but most likely for the 9th so there is more time to organise.

Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:45 AM.