ROTEL RB-03 Amplifiers

4.75/5 (4 Reviews)


Product Description

  • Damping Factor (8 ohms)
  • Input Impedance/Sensitivity 500)
  • Input Overload Level)
  • Frequency Response 1.0V / 33 kOhms)
  • Power Consumption: 250 watts)
  • Power Requirements:115 volts, 60 Hz)
  • 230 Volts, 50 Hz)
  • Weight (net): 8.1kg / 17.86 lbs)


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Reviews 1 - 4 (4 Reviews Total)

User Reviews

Overall Rating:4
Value Rating:5
Submitted by hyperpsyched a Audio Enthusiast

Date Reviewed: October 11, 2006

Bottom Line:   
I am using two of these in a bridged-mono configuration. Funny thing is that they are rated at 180 watts in mono at 4 ohms and in the manual they state they should not be used for speakers under 8 ohms! Huh? Well I am using a pair of Energy RVS speakers with a minimum impedance of 4.3 ohms (8 ohms nominal). While I cannot say too much about driving loads any lower than this they have NO problem driving my speakers at all, at any volume. As I live in an apartment letting them really go is not an option (not to say I have not cranked them up though, no police at the door yet but I have freaked out my wife a couple of times ;) They reproduce music remarkably well at any volume I have dared to try. At this price point they are hard to fault. Bass is very full and midrange is well articulated. Cymbals and hand-clappiing sound very life-like as well. The amps have been accused of being "bright" but with my Energys they sound perfect as these speakers are anything but sibilant. A nice combination.

My preferred source is a Pro-ject Xpression 2 turntable (stock except for a rubber platter mat) with the AT-95 cartridge and dealer supplied interconnects. Blows my older Pioneer PDS-503 away. Loudspeaker cable is a short run (80 cm) of Lifeline solid core cabling from each amp to speaker. Preamp is a NAD 306 using just the preamp stage. Yes, I just love that wonderful phono pre-amp!

Downsides? Hmmmmm..... None sonically. Technically? The RB-03 amp does not support bi-wiring in mono in the sense that you cannot use a separate run of cable for each of the two frequency ranges though you can find (or make) cable that supports biwiring in this case (looks like a 4 headed snake with two tails). As my speakers do not support biwiring this was not an issue for me. Might pose a problem should I feel the need to upgrade though. Something to think about. Another potential problem for some would be the necessity of removing the amp cover to bridge the channels for mono use. Requires moving three internal jumpers. Dead easy if you feel comfortable with electronic innards but let your dealer do it if you get squeamish at the sight of transistors and capacitors. Lastly there is no protection circuit save for the internal fuses. There is an audible transient pop when the unit are powered up but nothing dramatic and certainly nothing that could damage a driver or tweeter. Hey, what do you expect for 300 bones?

All in all, definately recommended at this price point assuming you have suitable speakers.

Expand full review >>

Used product for:   1 to 3 months

Duration Product Used:   Audio Enthusiast

Product model year:   2006

Price Paid:    $310.00

Purchased At:   new online



Overall Rating:5
Value Rating:5
Submitted by accastil a Audio Enthusiast

Date Reviewed: January 5, 2006

Bottom Line:   
nice physical appearance. very clean, very clear, very balanced, very detailed sound. sounds like a 150W power amp. bass is tremendous. mid/highs are very cool.

Expand full review >>

Used product for:   Less than 1 month

Duration Product Used:   Audio Enthusiast

Price Paid:    $360.00

Purchased At:   sound dimension maka



Overall Rating:5
Value Rating:5
Submitted by robinliebrechts a Audio Enthusiast

Date Reviewed: November 14, 2004

Bottom Line:   
The Rotel RB-03 is a simple but very good power amplifier that drives my 4 ohm Linn Ninka's with ease. The sound is refresingly pure and honest with good bass control, pure highs and good mids. You do not have to pay much more than this Rotel for very good sound. I used it with the Rotel RC-03 preamp. This ia a very good combination.

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Used product for:   More than 1 year

Duration Product Used:   Audio Enthusiast

Product model year:   2002

Price Paid:    $450.00

Purchased At:   Hifi Studio Zwaard



Overall Rating:5
Value Rating:5
Submitted by miduong a AudioPhile

Date Reviewed: September 20, 2004

Bottom Line:   
Hi.
Denon AVR is famous I've used it for many years. It is very hard decision to give up your custom. Denon is very satitified with movie mode but in Music the sound is very poor and weak.
Even the Denon AVR 3802 over 800 USD or something around else is no capable of driving the 4 ohm speakers: denon product is low-current amp.
Good-looking stuffs: denon made it only to sell their products more easily.
After choosing the Dynaudio speakers for music stereo and I look around for a high-current amplifier to drive it ...
The NAD is very lack of details, Arcam is good of seperation but alttle bit week
Marantz SR is warm and easy relax listening but not clean as Rotel
Buying amplifier is not very easy, there are alot of ampli that higher class than rotel such as : Primare, Rega , Krell ..
but under 1000 USD I picked Rotel RC03 and Rb 03
Until now I still don't know where Rotel come from : UK, Japan but their products are all made in China.
Rotel sound may little bright but if you hook it to the B&W DM or CDM series metal tweeter
but with My danish speakers, it just clean and never bright.
The look of the rotel RC RB03 in silver may be a little bit for ladies but I realy love these and I always let the rb 03 seats above rc 03 on my rack and I start to love the look.
Rotel UK choose BW as their dealer but I never like UK speakers because they are weak and over-advertised by their hifi
magazines.

I finally Choose Dynaudio audience.

Expand full review >>

Used product for:   More than 1 year

Duration Product Used:   AudioPhile

Product model year:   2002

Price Paid:    $300.00

Purchased At:   Singapor




Reviews 1 - 4 (4 Reviews Total)

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