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Re: Amplifiers
#94561 05/22/05 07:46 PM
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I was interested until I saw the MSRP.

Re: Amplifiers
#94562 05/22/05 08:10 PM
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MSRP is high. That's why I'm waiting to hear about sames chassis with fewer blocks in it.

Also interesting from Audioholics review above.

<<Signal to Noise Ratio (SNR) Measurements
Measuring the Signal to Noise ratio of this amplifier proved to be quite challenging due to the lack of proper LPF for limiting the bandwidth to below the switching frequency.

By applying A-weighting response curve, I was able to achieve partially reasonable measurements of 82dBA (A-wt) at 1 watt or about 102dBA at 270wpc.

From Emotiva Engineering Labs:We perform my signal to noise ratio test a little different than you do. We base our measurement strictly on the rms voltage as measured on the AP with a <10Hz to 30Hz bandwidth selected. No other weighting is applied. The amplifier is connecting to a purely resistive load, in this case 4 ohms. We measured a noise floor voltage of 268uV using the balanced output of the AP with a 50 ohm output impedance - generator selected to off to terminate the input to the amplifier. From this starting point we let the AP do all the work. We select the output level from which I want the S/N ratio to be referenced at and call that the 0dB point. Below are some measurements we have taken:

102dB ref 300W
101dB ref 270W
87 dB ref 10W
77dB ref 1W
These numbers should be more consistent with what you are hearing from the amplifier. Also, we believe these numbers represent a best case scenario because we are using the balanced input. The key to this test is the noise floor of the amplifier. This can change significantly if power cables are inducing 60Hz into signal, other equipment could be radiating noise, etc.

In any event, the 77dB @ 1 watt number isn’t flattering to say the least, but given the unique amplifier topology, I suspect the out of band switching noise is producing a non representative number since noise was never an audible issue in real world listening tests. When using the Yamaha RX-V2500 as the preamp for the Emotiva MPS-1, the set-up was dead quiet and sounded as silent as other amps I have measured with significantly lower noise floors. >>

I was looking for watts and dB chart earlier.


Re: Amplifiers
#94563 05/22/05 10:08 PM
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Well the MSRP is certainly out of my range, but the reviewer said "my jaw nearly dropped off when I learned of the meager $2k asking price - especially considering the build quality, internal components and potential the product appeared to have." He apparently feels the cost to performance ratio to be outstanding. Again, It's not in my future.

I WILL be receiving it's little brother the Emotiva Ultra-Lite LPA-1 Seven Channel Amplifier sometime this summer. It's too early to tell if it will measure up, but I sure hope so. AND, it's much more reasonably priced.


Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton
Re: Amplifiers
#94564 05/23/05 02:06 AM
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bug: why do you think that your Denon 3805 is not good enough to go with the M80s?


The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV
Re: Amplifiers
#94565 05/23/05 02:11 AM
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That amp looks to be in the same price class as the big, 5 channel Rotel.


The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV
Re: Amplifiers
#94566 05/23/05 02:59 AM
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Rat,

I am happy with 3805. I want to find out if these guys are right about the amp giving better sound quality. I think it worth shipping back an unwanted unit to do a side by side. I'm going to do the same with 60's and 80's.

Yes, it is in the range of the Rotel 5 channel. But again but i'm intrigued by the monoblocks with separate power supplies and the fact that you can add monoblocks as you go. I'm alson considering the Outlaw monoblock.

Last edited by bugbitten; 05/23/05 03:04 AM.
Re: Amplifiers
#94567 05/23/05 03:20 AM
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bug: I would be most interested to see what you post as your findings. I am interested in some new HT gear, but am not sure what to do at this point in time. I'm sure that I will, however, figure it out in due process.

I went to some of the various websites this evening and they all look more or less the same. All the same grand and glorious comments. Maybe some of the folks who read this thread can comment on performance, warranty and customer service. Rotel has a five year warranty which is the longest that I have seen, thus far.

I went to ubid and they did have a Denon 3805 for sale, but it only had a 90 day warranty. Last time I looked there, I thought that it was a year warranty. I'm not exactly sure that I fully understand how they do business. They may be using multiple business models.

Do you actually bid on a unit like on ebay?


The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV
Re: Amplifiers
#94568 05/23/05 03:54 AM
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Ubid is buy for price listed. No auction. 90 day Denon warranty. This place Dakmart charges more but offers inhouse 1 year warranty NOT Denon.

When I bought mine it was available on just about all Denon authorized sites. Denon list . I just checked and it's not now. But who knows, might change tommorrow.

Mine was 699 on Ubid. I think it is worth the gamble if you intend to use it daily like my son and I. Hopefully it won't break. I have found in my buying habits that if my electronics work for 90 days, then it will probably last.

Re: Amplifiers
#94569 05/23/05 03:45 PM
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In reply to:

Rotel has a five year warranty which is the longest that I have seen, thus far




If warranty is a concern, look no farther then Bryston. They have had the best warranty for years and they back it.

Also, if the Emotiva line works as good as it looks and they hold the price, they will give Outlaw a run for their money and then some. $599.00 for that amp Ajax posted........that is a good deal to say the least. The pre pro is only $699.00. So for $1300.00 and change you get what appears to be some very nice stuff.

Re: Amplifiers
#94570 05/24/05 03:29 AM
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Emotiva will be available as a starter unit with 2 blocks for 1099, additional blocks 249.

May take that model out of the running.

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