Author Topic: Rotel AV Receivers/Amplifiers (Read 135372 times)

KEN · « **Reply #210 on:** Jan 25, 2006 at 11:32 PM »

hi,

paki post naman price for RB03, and RA 1062

TIA

bumblebee · « **Reply #211 on:** Jan 26, 2006 at 08:59 AM »

Unlike NADs, Rotel integrateds don't have Main-In's.

moks · « **Reply #212 on:** Jan 26, 2006 at 01:12 PM »

according to the stereophile 2006 buyers guide the rotel ra-1062 integrated amplifier is classified as a class b amp while the ra-03 integrated amp is classified as a class ab amp. what is the difference between a class b amp and a class ab?

bumblebee · « **Reply #213 on:** Jan 26, 2006 at 01:28 PM »

Quote from: moks on Jan 26, 2006 at 01:12 PM

according to the stereophile 2006 buyers guide the rotel ra-1062 integrated amplifier is classified as a class b amp while the ra-03 integrated amp is classified as a class ab amp. what is the difference between a class b amp and a class ab?

http://sound.westhost.com/class-a.htm

av_phile1 · « **Reply #214 on:** Jan 26, 2006 at 02:12 PM »

Quote from: moks on Jan 26, 2006 at 01:12 PM

according to the stereophile 2006 buyers guide the rotel ra-1062 integrated amplifier is classified as a class b amp while the ra-03 integrated amp is classified as a class ab amp. what is the difference between a class b amp and a class ab?

That's strange, As far as I know there are no class B amp among hi-fidelity gears, precisely because of their inherent crossover distortion. It's always either class A or class AB. With subwoofers in the class D topography.

MAtZTER · « **Reply #215 on:** Feb 06, 2006 at 02:45 PM »

I am trying to acquire a Rotel rb980B (not BX) from a friend. I cant seem to find pictures or data of this older model.

Is it a 5 channel x 100w amp or an integrated amp?

Is this model a good buy? How old is this model?

ronjet · « **Reply #216 on:** Feb 11, 2006 at 03:37 PM »

pa-update po... if more into HT, ano po maganda na power amp? (sorry, di po ako familiar sa power/integrated amp po) don't know pa po kung ano talaga kailangan sa dalawa and kung ano differences. thanks in advance

nephilim · « **Reply #217 on:** Feb 12, 2006 at 01:32 PM »

For pure HT, best to just get a decent A/V receiver. All you'll need are the speakers and the dvd player and you're ready to go.

MAtZTER · « **Reply #218 on:** Feb 13, 2006 at 11:04 AM »

Quote from: MAtZTER on Feb 06, 2006 at 02:45 PM

I am trying to acquire a Rotel rb980B (not BX) from a friend. I cant seem to find pictures or data of this older model.

I got the amp already, I posted the wrong model. Its a RB985 5x100w THX amp. Its very powerful and it works great.

In the future I will just get mid-level receivers with pre outs as upgrades and retain this amp.

ATJr. · « **Reply #219 on:** Feb 13, 2006 at 02:11 PM »

Quote

Input Sensitivity: 375mV for 50w at 8ohms

this means that your amp has a closed loop gain of x 53 or 34db, wonder how it sounds at a lower gain...say x25.

juvinyl · « **Reply #220 on:** Feb 14, 2006 at 08:49 PM »

Hey guys,

Does anyone here using rotel rb-1080 with b&w speakers? How's does it sound? Because, at present i'm using ra-03 with b&w 705 and it seems that my 705 has not reach its maximum potential. I know this speaker is power hungry and I believe going for a higher wattage amp, like the 1080 (200 wpc) will further improve the sound in all respects.

I would appreciate reviews for those who have used or have auditioned this amp. Your opinions will surely help me firm my plan in going to a higher setup, e.g., use my ra-03 as preamp and rb-1080 for the separate amp. This is also in preparation to upgrading my 705 to 800 series speakers. Maybe not in the near future, but let's say in 1-2 years. $:-\$

Thanks.

Juvinyl

PS. Sorry if there are previous topics similar to this that I've missed.

classicman · « **Reply #221 on:** Feb 14, 2006 at 09:01 PM »

hmmnnnn.......bai juvinyl, i can definitely smell an upgrade, hehehe

ZEPHYR · « **Reply #222 on:** Feb 14, 2006 at 11:37 PM »

Quote from: MAtZTER on Feb 13, 2006 at 11:04 AM

I got the amp already, I posted the wrong model. Its a RB985 5x100w THX amp. Its very powerful and it works great.

In the future I will just get mid-level receivers with pre outs as upgrades and retain this amp.

Bro ito ba iyan

o ito

I have the RB-985 power amp (first picture above) and I agree that at 100wpc (5 channels) this is very powerful. This is currently connected to a Denon AVD-2000 digital processor - DTS decoding comes from my Philips 5500S DVD players thru the Denon 5.1 analog input.

- The RB-985s high headroom and state of the art signal-to-noise measurements ensure unsullied reproduction of the most dynamic as well as the most delicate sonic nuances
- Complete with gold plated RCA and DB-25 input connectors, the RB-985 is ideally suited for either home theatre applications or bi-amped systems optimised for music reproduction

ricky · « **Reply #223 on:** Feb 15, 2006 at 12:52 AM »

Zephyr yeah first picture is the rb985 and the second one is the later generation which is rb 985mkII,yung may heat sink na.

MAtZTER · « **Reply #224 on:** Feb 15, 2006 at 10:55 AM »

Quote from: ZEPHYR on Feb 14, 2006 at 11:37 PM

Bro ito ba iyan

- The RB-985s high headroom and state of the art signal-to-noise measurements ensure unsullied reproduction of the most dynamic as well as the most delicate sonic nuances
- Complete with gold plated RCA and DB-25 input connectors, the RB-985 is ideally suited for either home theatre applications or bi-amped systems optimised for music reproduction

Thanks for the info! I have been looking for any write ups on this.

Yep, I am using the one in the first picture. And its a great amp.

I am using it for bi-amping and the sound is just awesome in both music and HT. I am only using 3 channels for now though.

mYKi · « **Reply #225 on:** Feb 15, 2006 at 04:11 PM »

Guys, I just want to share an experience...

I wanted to sell my RMB-1075 because I wasn't watching DVDs or listening to CDs much. I'm using a Marantz SR-5500 as a pre-processor so I thought I can do without the Rotel amp.

When I had a buyer already, I removed the amp to pack it. I then hooked up the speakers to the receiver. When I listened to a CD, I wasn't satisfied with the sound anymore. It really lacked much. I then realized I can't live without the amp so I had to pull-out the sale.

Anyway, since I've took out everything already from the shelf, I decided to vacuum my receiver. I then opened my Marantz SR-5500 receiver and carefully vacuumed the insides. I then saw the amplifier section and it was a separate vertical motherboard with huge heatsinks. Hmmmmm.... since I'm going to use the SR-5500 as a pre-processor only, maybe I can disconnect the amp section. This will save electricity, reduce interference, and eliminate the heat coming from the built-in amps.

So i did!!! I disconnected the power cables leading to the amp section. I then put back the cover, connected everything, and viola! I now have a pre-processor! The SR-5500 is now cool to the touch. Hehehehe.

Don't try this at home.

I guess I just remembered some things from my Electronics class in High School where we assembled our own amps.

Myki

iceman90a · « **Reply #226 on:** Feb 15, 2006 at 09:56 PM »

sayang - inaabangan ko pa naman sana yung AP interconnects mo

ZEPHYR · « **Reply #227 on:** Feb 16, 2006 at 11:42 PM »

Quote from: MAtZTER on Feb 15, 2006 at 10:55 AM

Thanks for the info! I have been looking for any write ups on this.

Yep, I am using the one in the first picture. And its a great amp.

I am using it for bi-amping and the sound is just awesome in both music and HT. I am only using 3 channels for now though.

Bro have you read this review on the RB985

http://www.homecinemachoice.com/reviews/hccreviews/PowerAmps/Rotel/RotelRB985.php?action=setwidth&NewSiteWidth=

Thanks

MAtZTER · « **Reply #228 on:** Feb 17, 2006 at 10:51 AM »

Thanks for the link

Yep, the binding posts are indeed the only thing I would complain about.

But when its powering my floorstanding speakers, all I can say is "WOW"

ZEPHYR · « **Reply #229 on:** Feb 18, 2006 at 10:37 AM »

Quote from: MAtZTER on Feb 17, 2006 at 10:51 AM

Thanks for the link

Yep, the binding posts are indeed the only thing I would complain about.

But when its powering my floorstanding speakers, all I can say is "WOW"

Well mine's already been replaced when I bought it. The original owner had it changed already due the said review and now Im enjoying it as my HT set-up geared for any (I hope

) future upgrade in the HT systems

juvinyl · « **Reply #230 on:** Feb 23, 2006 at 09:37 PM »

Mukha yatang I won't be able to get opinions in this thread. Meaning to say, no user or interested of rb-1080?

Narayan · « **Reply #231 on:** Feb 23, 2006 at 10:11 PM »

hi juvinyl,

am using a rotel rb-1080 power amp driving a pair of mordaunt short ms 914s with an onkyo integra as pre-amp. if you want to find out how the 1080 will sound with your B & W speakers, you may come over to my place with your gears

pm me if interested so i can provide my home address details

juvinyl · « **Reply #232 on:** Feb 24, 2006 at 04:09 PM »

Thanks for your response Narayan. I think I won't be able to come b/c...I'm from Cebu

. Anayway, ask lang ako kung mainitinan ba talaga ang amp na to? I've heard reviews from other forums that says it is.

Narayan · « **Reply #233 on:** Feb 24, 2006 at 05:44 PM »

Quote from: juvinyl on Feb 24, 2006 at 04:09 PM

Thanks for your response Narayan. I think I won't be able to come b/c...I'm from Cebu . Anayway, ask lang ako kung mainitinan ba talaga ang amp na to? I've heard reviews from other forums that says it is.

if what you mean is the unit easily getting warm during use, hindi naman. just normal (not hot) for a solid state amp. this amp btw is also thx ultra certified na

ricky · « **Reply #234 on:** Feb 24, 2006 at 05:57 PM »

pasali din,before i bought my rotel 985 (5x100) ang review din ng marami ay nag iinit sya and may warning pa sa site ako nabasa na mabilis sya uminit so they suggest not to put in a tight space,but i have tried using mine for around 8hrs straight on weekends and it did not even became hot to the touch,its just warm enough but never hot . ;)and i watch in high volume levels pa

hope this helps you.

juvinyl · « **Reply #235 on:** Feb 24, 2006 at 07:17 PM »

Thanks for your post. Seguro, what the guy claims that it was hot, might be true and not normal for this amp. Maybe what he got is a factory defect and this happens even in a tight quality control imposed by manufacturers.

BTw, I am now in the selection between rb-1070 and 1080 and I am evaluating the possibility of speaker upgrade in the future. I'm looking at b&w 803s or 804s. which is better between the 2 amps that can give the best wattage per pesos?

ricky · « **Reply #236 on:** Feb 24, 2006 at 09:04 PM »

Hi again juv, rb1070 is just 2x130w but bridgeable to 360w mono(for further future upgrades of mono-mono

) while rb1080 is already 2x200w(imho is really enough to power a decent floorstanders of any brand and upgrade proof na din naman ).But Its really up to you how far you're willing to go and spend

1080 would be expensive compared to 1070 but its just a one time purchase lang naman unlike if you will buy the 1070 now and later on realize that you're not yet satisfied with the power then you need to buy another unit and end up with 2x360w

Another option you can consider is to just get the rmb 1075(5x120w) or rmb 1095(5x200w) and use the 4channel to bi-amped your front speakers

juvinyl · « **Reply #237 on:** Feb 25, 2006 at 07:28 PM »

Thanks Ricky for your nice presentation of options and it really widens my idea on how my future setup would be. What is good for separates like this is their flexibility of setups.

ricky · « **Reply #238 on:** Feb 26, 2006 at 12:42 AM »

Glad to be of help bro, and another thing nice about separates is that you can really plan your purchases esp with rotels na halos ang tagal bago new models are introduced

It really is a wise investment lalo na kung masaya ka sa basic functions lang.Who needs a lot of dsp choices when the best is the direct mode

synchro_01 · « **Reply #239 on:** Feb 26, 2006 at 03:52 AM »

juvinyl

presently have the RA-1070 mated with a B&W 805 Nautilus speakers (on top orig Nautilus stands). its only 100watts x 2 (conservatively rated) but it can make the 805's really sing out loud. I do agree that the marriage between Rotel electronics and B&W speakers is one combo that is hard to beat. Midrange quality is top notch and so realistic.

BTW, I have a spare Classe CA70 power amplifier that I am not using. Havent tried it yet with the Nautilus but it used to power a set of Dynaudio A50's to very respectable SPL's....sound quality is very neutral. send me a PM if interested.