RTi12 Prodigious Bass Output

XJRGUY

Ok,

I've owned RTi12 speakers for a couple years now and have thought they've been good, but not "GREAT" in terms of bass output. I've also read a couple reports of people not getting the low freq. output out of these speakers.

I've powered these things with:

Sony STR-DA777ES built in amps.

Soundcraftsmen Pro Power 10 amps (configured in two channel @ 600 wpc)

Stack of Sony TA-N9000's in "BTL Mode" running 400 watts per R + L RTi12 passively bi-amped. Sounded way better than the Soundcraftsmens. I was shocked after I auditioned the Sony Amps thinking it was going to be a downgrade. I was stunned.

And I finally picked up a real beaut of an amp with a brand new Sunfire TGA-7401.

I've got the Sunfire feeding four channels of power into each of the "monoliths", still passively bi-amped.

They are hooked up to the TGA-7401 as follows:

Current source for the top of the cabinet, and voltage source for the woofers. Seems to take the bright edge off of the RTi's tweeter.

These speakers absolutely CAME ALIVE and those six seven inch drivers, not to mention the midrange cones simply dance with the music now.

In two channel listening I listen in "direct" mode without my subs and these things play very clean, loud and low. It's not fatiguing at all either.


I'm "re-amazed" with my speakers all over again.

The Sunfire just really lit a match under my system and the power savings are phenomenal too.

Sitting idle, my three Sony TA-N9000ES amps would draw 350 watts, with no program material fed into them.

Contrast the one Sunfire, which has the potential to dwarf the three Sony's output in one box at only 40 watts idle.

Unbelievable.

I've had the Sunfire for over a month and I am just loving it.

FYI, I don't EQ my music nor mess with the tone controls Everything is flat.

thsmith

Like I have heard here before, synergy. Congrats

Ern Dog

I love it when that happens. Congrats. I had Rti10's and there were great speakers.

XJRGUY

Yeah it's pretty crazy.

This amp has a death grip over these speakers in terms of driver control.

I think it's pretty overboard the way I have it wired.

Last night I had the system cranked listening to these albums and it sounds fantastic:

Everything but the Girl : Amplified Heart (entire album, superb)

Sarah McLachlan : Surfacing (especially the track "Black and White")

City of Angels Sountrack (the Paula Cole track on that disc that is really sultry)

Pretty Woman Soundtrack (not the entire thing, just one of the female tracks that is jazzy, forget the artist)

I'll take some pics of how I have the wiring done on the speakers and the amp.

I'm also the crazy guy that uses an RTi12 as a center speaker (and TV stand LOL), and have that passively biamped as well.

kcoc321

But would someone explain:

"They are hooked up to the TGA-7401 as follows:

Current source for the top of the cabinet, and voltage source for the woofers. Seems to take the bright edge off of the RTi's tweeter."

Current source vs voltage source? :eek:
Is this something just with the Sunfire amp?
Thanks

XJRGUY

Yeah it's a Sunfire (Carver) thing.

Here is a quick review of the TGA-7401.

It explains briefly what the wiring options mean.

To some it's a gimmick, but I figured I'd give it a shot this way.

http://hometheaterreview.com/sunfire-tga-7401-multi-channel-amplifier-reviewed/

kcoc321

I am 'getting into' the separates/ bi-amping route and am comparing/ absorbing the plethora of options...... always on the lookout for more information.......

though no even a tickle of the scale most of you are at.

F1nut

Mustang Sally has returned.

Sherardp

Congrats on what is a very nice amp.

danz1906

Congrats on your system.

AudioGenics

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