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Guys: I appreciate your helpful responses to my question above. I thought the answer would be simpler as I assumed the science would be clearer on this subject. I will try to solicit some advice from the manufacturer as he'd have the absorption data for my panels. I actually found a youtube...

I also have his SS amps from Sunfire(TGA7401), a 7 channel 400W/Ch amplifier which also sounds great. I'm curious to find out which of his amps you got rid of...

Both will do fine with the Montis but I have the 350W version for my Spires....

Steve: Have you looked at Bob Carver's new tube amplifiers at http://www.bobcarvercorp.com/ I use them on my ML Spires and they sound fantastic and rock plenty with lots of headroom to spare:rocker: They are designed to be used for tough loads such as Xstats or Apogees with impedances down to...

18'X20'... I have 2 sealed subs (SVS SB13 Ultras). I wanted to gauge the bass of the Spires when playing stereo sources only and that's when I found out the bass was lacking and hence the idea for moving them closer to the wall, if warranted. Is it recommended to place room treatments behind...

Hi All: I have ML Spires currently approx. 3 feet from the back wall. The back wall high-frequency room treatments from Ready Acoustics (http://www.readyacoustics.com/acoustic_panels.html) that have an absorption range from 250Hz to 20KHz. Does this mean I can place the Spires closer to the...

Sorry for the late response .... This response was taken from the major listening position, about 13 feet away from the speaker.

Response of Spires with My Carver VTA305M tube-based monoblocks. I have the Carver 305W Monoblocks (Cherry VTA305) with a stated output impedance of 1.6 ohms driving my Spires which use the same panel as the Montis. I plotted the frequency response of my room and noticed a 10dB slope off...

Open the subwoofer plate to check for disconnected wires. If the design has pots, chances are they 'turned' during the move reducing the gain of the amp. In this case return the sub to ML.

^ True indeed

So assuming a primarily 8 ohm load, you'll get a maximum SPL of 89 + (10*log(60)) = 107 dB at 1 meter(!) as the amp produces 60W into 8 ohms. Assuming a primarily 4 ohm load, you'll get a maximum SPL of 89 + (10*log(120)) = 110 dB at 1 meter as the produces 120W into 4 ohms. Assuming a...

Though i have no direct experience with this amplifier, its specs into 8, 4 and 2 ohm loads is impressive indeed, so problem driing ML speakers notorious for difficult loads at high frequencies. Look at the last page 8 of their brochure here at http://archive.anthemav.com/OldSitev1/pdf/mcalit.pdf

What is the rated efficiency of the Aerius?

HQ Music formats sampled at 96KHz and 192KHz via SACD, BD or DVDA is where you'll ever get to meet the harmonics at 20KHz and beyond and at amplitudes much lower than the ones you can actually hear. Movies not so much as the emphasis is on dialog and low frequency special effects. I recently...

I believe its more due to the manufacturing tolerances than intentionally different xover design. A case in point for my Spires is how both speakers with identical bill-of-materials but have different times when they shutoff when there's no audio signal. One shutoff first then about 1-2 minutes...

Rob: IMO, If you ever want to know if an amp is able to drive ML electrostatics is to look at its power rating into 4 and 2 ohms and its stability below 2 ohms as the ESL is a capacitive load whose impedance plunges with increasing frequency with about 0.5-0.8 ohms at 20KHz. If it can handle...

I just did ...read my edited post above ...

OK all... i think i have found the problem. I had removed the front feet of the Spires to make a vertical rake angle for better imaging, which works well. BUT, now that the holes that hold these feet exposed, distorted bass sounds are emitted from within the woofer through these holes. I think...

Not broken indeed but the tonality is different from my main Spires. It seems they claim the StageX is a much better match to Xstats than the tweeter in the Stage.

Gordon: I use the AS-EQ1 bass management system from SVS to phase align my subwoofers(which uses Audessey) plus Anthems ARC system for my D2v pre-pro. The bass is calibrated to be equal with the rest of the mains at 75dB when the volume knob is set to 0dB. I set the volume knob to -15dB for a...