A Design Study: the Mark Levinson No.53

Mark Levinson showed a design study for its Reference No.53 monoblock amplifier in its Hilton suite, which will replace the previous flagship, the No.33. Although details are not finalized, Levinson's Walter Schofield suggested that each monoblock chassis will be rated in the neighborhood of 500W into 8 ohms, and will be priced at approximately $20,000.

The No.53 employs an elegant new heatsink design, with curved, smaller fins. As a result, the No.53 is lighter—135 lbs—than the 230 lb '33H monoblock. Those of us who have to lift such heavy metal are celebrating the fact that Levinson has included integral handles under the '53's front and rear top plates.

Richard Diamond's picture

writer needs to correct spelling: replace not replaced

Sid Chak's picture

Internet rumours are suggesting that this new amplifier has a Class D output stage. Any truth to this?

pushpulltriode's picture

Wish it's having Class D output stage, cos it's very tuffy to make an outstanding master piece running in class A/B.Refer to some online review, even the Nuforce Reference 9 SE already surpassed the 33H (the 33H is considered better sounding than the 33)!

BR's picture

. . . See. . this is why getting online and discussing audio SUCKS anymore. There's always one of these guys out there. "pushpulltriode"

joaquin matias's picture

how are the pair being priced? $20,000 per block or for the pair. Also how are you able to deliver 5000w in 8Oohms (doubled) at a reduced weight, does not this weight differential impact the quality of materials?

cafyon's picture

Referring to a recent ad of No.53 in Stereophile, there is a bottom line suggesting something like "...with interleaved power supply".Is "this" interleaved power supply, a switching power source; thus a kind switching (even class-D) amplifier No.53 is?

devus's picture

the power supply is transistorised, kinda like a pc one. very small lite and powerfull..

Marko's picture

I'm wondering how much jitter does switching output stage add to sound. Will all the benefits of low jitter CD and DAC be masked by the swithing output stage? It will surely sound different and may impress you untill some of its aspects start to call your attention.