Rti A9 amp choice
ddmathis
Posts: 13
I am new here and just picked up a pair of RTI A9s. I have read a lot about there power needs and all I have at this time is an Onkyo sr806 avr powering them. I was looking in to buying a Marantz mm7025 amp and using it for the low end of the speakers and using my reciever to power the high end. Would this be adequete power for them. The Marantz is rated at 140 WPC/channel. The Onkyo is rated at 130 x 7 I believe. Thanks for the advice. By the way the rest of my system is fxi/a6 surround Rti A3 rear surround Csi A6 center Psw 125 sub and a klipsch rw-10d sub.
Post edited by ddmathis on
Comments
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Budget???
The Adcom 555 would be a nice addition to you a9's. No need to bi-amp, the Adcom with handle both the top and bottom end. The Adcom runs around $300. There's better but it'll cost you more. -
Budget is about 800.
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Sunfire if you can find one. If not Outlaw Audio would be my second choice. Both are nice amps.Shoot the jumper.....................BALLIN.............!!!!!
Home Theater Pics in the Showcase :cool:
http://www.polkaudio.com/forums/showcase/view.php?userid=73580 -
Budget???
The Adcom 555 would be a nice addition to you a9's. No need to bi-amp, the Adcom with handle both the top and bottom end. The Adcom runs around $300. There's better but it'll cost you more.
+1 I just got an Adcom 545 from Mole. Tried it on my Lsi 15's and they sounded great. Its going in my garage setup though.LIVING ROOM:Pioneer PDP-6070HD, Pioneer Elite SC-25, Pioneer Elite BDP-05FD,
Emotiva XPA-5, Emotiva USP-1, Polk LSI15's, Polk LSiC, Velodyne 12", Mirage Nanosat Prestige rears, MIT AVT Speaker Cables, Audioquest King Cobra Interconnects, Panamax M5300pm Surge Protection/ Power ConditioningBEDROOM: VIZIO 32" LCD, Pioneer Elite VSX-23txh, Pioneer Elite BDP-23FD, Parasound HCA-2205A, Mirage Nanosat Prestige Speakers 5.1, Mirage S8 Sub, Monoprice cables, APC Surge Protection. -
Adcom GFA-5802
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Sunfire Grand if you can swing it .
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Onkyo makes a pretty nice stereo amplifier, the M282 I think, that would aesthetically match and rolls out some nice specs....just FYI. It's a solid amp and can be found used as well, under the earlier model number. New it's about $350...but that's just rough street. I've seen them for WAY less.CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
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Also look at Parasound and Rotel. They make great amps but you'll have to spend your entire budget.
http://www.audiogon.com/cgi-bin/cls.pl?ampsmult&1296092107&/Parasound-Amplifier-hca2205A-t -
I am new here and just picked up a pair of RTI A9s. I have read a lot about there power needs and all I have at this time is an Onkyo sr806 avr powering them. I was looking in to buying a Marantz mm7025 amp and using it for the low end of the speakers and using my reciever to power the high end. Would this be adequete power for them. The Marantz is rated at 140 WPC/channel. The Onkyo is rated at 130 x 7 I believe. Thanks for the advice. By the way the rest of my system is fxi/a6 surround Rti A3 rear surround Csi A6 center Psw 125 sub and a klipsch rw-10d sub.
I may be wrong...but I don't think you'd even be able to use an amp to power the lows and still use the receiver to power the highs. In order to use the amp, you'd have to connect it to the front preamp outputs of the receiver, which would most likely disengage those amp channels within the AVR.
In either case, even if it did work, that would most likely sound horrible due to mismatched gain and different timbrel coloration between the amps. The Marantz amp would have significantly more real world output than the Onkyo, and it would be hard to balance the sound between the lows and the highs without using external crossovers and whatnot...which turns it into a far more complicated ordeal(read, waste of time). You'll be far better off simply getting an amp to power your A9's, and not worry about bi-wiring.
Also, for the record...that Onkyo isn't putting out anything close to 130 watts x 7 channels. It's real world power rating is probably more like 130 watts x 2 channels, and more like 55-60 watts x 7.for 800 you can get way better than adcom
I nominate this post for "Most Informative and Helpful Post of the Year".:rolleyes:
What suggestions do you have then?
Have you ever even heard a GFA-5802? For around $800, you'd be hard pressed to find a better amp than the 5802 IMO. It's a splendid sounding amp.The nirvana inducer-
APC H10 Power Conditioner
Marantz UD5005 universal player
Parasound Halo P5 preamp
Parasound HCA-1200II power amp
PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
Audioquest Speaker Cables and IC's -
TOOLFORLIFEFAN wrote: »Sunfire Grand if you can swing it .
The OP could also look at the Emotiva XPA-2 for $709 shipped. This way he would have a new warrantied item if they so choose.
Concealer thought the XPA-2 sounded exactly like a Sunfire along with some others at a recent get together. -
I just ordered one for that price late last night. I am looking forward to comparing it to the NAD C272 that I've been running with SRS 2's for a few years now. Should be interesting.The OP could also look at the Emotiva XPA-2 for $709 shipped. This way he would have a new warrantied item if they so choose.
Concealer thought the XPA-2 sounded exactly like a Sunfire along with some others at a recent get together.
Two Channel Setup:
Speakers: Wharfedale Opus 2-3
Integrated Amp: Krell S-300i
DAC: Arcam irDac
Source: iMac
Remote Control: iPad Mini
3.2 Home Theater Setup:
Fronts: Klipsch RP-160M
Center: Klipsch RP-160M
Subwoofer: SVS PB12NSD (X 2)
AVR: Yamaha Aventage RX-A2030
Blu Ray: Sony BDP-S790
TV Source: DirecTV Genie -
Concealer thought the XPA-2 sounded exactly like a Sunfire along with some others at a recent get together.
For the past year, I have the XPA-5 and a Sunfire Cinema Grand I swap between powering my LSI-15's. They sound nothing alike, the Emo has a dynamic, up front, in your face kind of sound, very well suited to HT. The Sunfire has a mature, laid back, mellow, very detailed sound that is better suited for music.
In my HT rig the Emo is my amp of preference, as it mates well with the laid back nature of the LSI's.
I would suspect that the Emo amp with the A-9's which are more forward than the LSI's could be a bit too "in your face", but for HT that may be exactly what your looking for.
Jimmy -
For the past year, I have the XPA-5 and a Sunfire Cinema Grand I swap between powering my LSI-15's. They sound nothing alike, the Emo has a dynamic, up front, in your face kind of sound, very well suited to HT. The Sunfire has a mature, laid back, mellow, very detailed sound that is better suited for music.
Jimmy
I would agree if the XPA-5 and 2 were of the same design. But the XPA-2 isn't the same amp design wise. Anyways one could always ask Concealer. -
I would agree if the XPA-5 and 2 were of the same design. But the XPA-2 isn't the same amp design wise. Anyways one could always ask Concealer.
Noted. I was just making the comparison between the Sunfire and the XPA-5, as many here use the Emo for their HT rigs. -
Jimmy,
Are you using the Sunfire's Voltage or Current outputs to feed your 15's?
ddm,
According to your manual...The FRONT L/R and SURR BACK L/R terminal posts can provide separate tweeter and woofer feeds for a pair of front speakers that support bi-amping
Seems to like trying this is a logical first step. If you hear an improvement, you likely want to explore further. But before you do...
Unfortunately your manual also says this:If you want to use a more powerful power amplifier and use the AV receiver/AV amplifier as a preamp, connect it to the PRE OUT jacks, and connect all speakers and the subwoofer to the power amplifier.
Reads to me that ComfyCurt is right about using pre-out kills the 806s corresponding amplifier output. Suggest you call Onkyo and check to be sure... IF it turns out that the amp output is not cut off, I second doro's M-282 suggestion. Finding a different Mfg's amp that matches your AVR's internal amps sound is a crapshoot...More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
Jimmy,
Are you using the Sunfire's Voltage or Current outputs to feed your 15's?
I use the voltage source to power the LSI-15's, when using the current source it sounds washed out and too laid back. -
Thanks... I was guessing voltage for the LSi's...
With my SRS's the current outs smooth the old SL2000 tweets while the voltage outs power the MW's... best'o'both worlds.More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
DD, welcome to Club Polk. What you should read and take seriously about the power needs of your excellent new RTiA9s is the official Polk sensitivity rating of a 90dB(quite loud)output for 1 watt of power input. This is at the high end of average for sensitivity of speakers used in the home, and illustrates the common reality that in a given speaker series the largest models are a bit more sensitive and require a little less power than the smaller models.
In short, your 806 amplifier has more than sufficient maximum power capacity to drive your RTiA9s to beyond safe(to your hearing)listening levels, even on brief peaks. There's no need to spend more money on a separate amplifier. Enjoy listening to your present setup first, and don't assume a problem which probably doesn't exist. -
DD, welcome to Club Polk. What you should read and take seriously about the power needs of your excellent new RTiA9s is the official Polk sensitivity rating of a 90dB(quite loud)output for 1 watt of power input. This is at the high end of average for sensitivity of speakers used in the home, and illustrates the common reality that in a given speaker series the largest models are a bit more sensitive and require a little less power than the smaller models.
In short, your 806 amplifier has more than sufficient maximum power capacity to drive your RTiA9s to beyond safe(to your hearing)listening levels, even on brief peaks. There's no need to spend more money on a separate amplifier. Enjoy listening to your present setup first, and don't assume a problem which probably doesn't exist.
Same 'ol MO, pick a new guy and tell him a boat load of lies. :rolleyes:Political Correctness'.........defined
"A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."
President of Club Polk -
for 800 you can get way better than adcom
IDK but the Adcom 5802 & Adcom 585 are some beasts! The Parasound Hca 3500 is another powerful amp. I'd take any of 'em!LIVING ROOM:Pioneer PDP-6070HD, Pioneer Elite SC-25, Pioneer Elite BDP-05FD,
Emotiva XPA-5, Emotiva USP-1, Polk LSI15's, Polk LSiC, Velodyne 12", Mirage Nanosat Prestige rears, MIT AVT Speaker Cables, Audioquest King Cobra Interconnects, Panamax M5300pm Surge Protection/ Power ConditioningBEDROOM: VIZIO 32" LCD, Pioneer Elite VSX-23txh, Pioneer Elite BDP-23FD, Parasound HCA-2205A, Mirage Nanosat Prestige Speakers 5.1, Mirage S8 Sub, Monoprice cables, APC Surge Protection. -
F.y.i.......... anyone selling one of the amps I justed listed, hit me up!LIVING ROOM:Pioneer PDP-6070HD, Pioneer Elite SC-25, Pioneer Elite BDP-05FD,
Emotiva XPA-5, Emotiva USP-1, Polk LSI15's, Polk LSiC, Velodyne 12", Mirage Nanosat Prestige rears, MIT AVT Speaker Cables, Audioquest King Cobra Interconnects, Panamax M5300pm Surge Protection/ Power ConditioningBEDROOM: VIZIO 32" LCD, Pioneer Elite VSX-23txh, Pioneer Elite BDP-23FD, Parasound HCA-2205A, Mirage Nanosat Prestige Speakers 5.1, Mirage S8 Sub, Monoprice cables, APC Surge Protection. -
Won't go quite as far as my good friend, Jessie...Enjoy listening to your present setup first, and don't assume a problem which probably doesn't exist.
Actually agree with not assuming a problem...
But given ddm's AVR's built-in ability to bi-amp, why urge no exploration whatsoever?More later,
Tour...
Vox Copuli
Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb
"Death doesn't come with a Uhaul." - Dennis Gardner
"It's easy to get lost in price vs performance vs ego vs illusion." - doro
"There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD -
It has actually been identified that the RTiA9 presents a tough load to generic electronics.CTC BBQ Amplifier, Sonic Frontiers Line3 Pre-Amplifier and Wadia 581 SACD player. Speakers? Always changing but for now, Mission Argonauts I picked up for $50 bucks, mint.
