Updated Neo-Classic Design! Same wonderful sound, but with an all new chassis design to accommodate those HUGE new transformers. The NEO-Classic 250s are available now.

A reviewer wrote the following words about Manley's 250 Monoblocks: "In triode mode this pair of Manleys 250s produces a remarkably three dimensional soundfield that is both convincing and seductive. When switched into tetrode mode, the Manleys have the brawn to deliver a full symphony orchestra directly into your living room. When I listened through the same track through the triode mode tube amps, I cried. Yup, tears ran down my cheeks while I bounced up and down, waving my arms, physically buffeted by the raw emotion of the music. Emotion. that essential component at the very core of great music. The Manleys deliver that emotional information, in a way that solid-state amps just can't."

Updated Neo-Classic Design! Same wonderful sound, but with an all new chassis design to accommodate those HUGE new transformers. The NEO-Classic 250s are available now.

A reviewer wrote the following words about Manley's 250 Monoblocks: "In triode mode this pair of Manleys 250s produces a remarkably three dimensional soundfield that is both convincing and seductive. When switched into tetrode mode, the Manleys have the brawn to deliver a full symphony orchestra directly into your living room. When I listened through the same track through the triode mode tube amps, I cried. Yup, tears ran down my cheeks while I bounced up and down, waving my arms, physically buffeted by the raw emotion of the music. Emotion. that essential component at the very core of great music. The Manleys deliver that emotional information, in a way that solid-state amps just can't."

The 250 and 500 Watt Monoblocks are the most powerful push-pull production-models made by Manley Labs. Circuit design and choice of selected components has been refined over years of research and development. Dependable reliability combined with musical accuracy and emotional authority is what these amplifiers deliver. They are able to switch operation modes allowing the listener to choose between the sonically seductive qualities of triode and the more powerful tetrode configuration. Manley use big reservoir capacitors in the high voltage supplies giving plenty of instant energy for dynamic performance of transients, those peaks of hi or low frequency are audible with a weight and presence which a solid-state amplifier can rarely if ever match. High voltages are run on the plates of the output tubes but operate them at lower current which will results in longer life and, although each output tube has its own bias-adjust, Manley carefully fit each amplifier with computer-batched tubes for optimum performance. The bias adjustment pots and measuring points are conveniently located behind the oval front panel insert.

To avoid heavy power drain when the amplifier is first switched on, Manley conceived a "Soft-Start" mode which also functions as an "Ever-Warm" position allowing the units to be always warmed up for pleasurable listening. Each amplifier consumes just 30 watts of power in Ever-Warm mode. A blinking green LED reminds you that the amplifier is in warm-up mode because as all the power supplies are at half-voltage, the amplifier will still play tunes (albeit not-so-great-sounding-tunes) when the Ever-Warm mode is engaged.

The front-panel has a mute switch and a new angled rear chassis for easier connection to your signal and speaker and power cables.

Manley's in-house magnetics department completely redesigned all their output transformers in 1998 with a goal to reclaim the luscious rich mid-range of their vintage designs. In 2000 these 250's were completely overhauled once again. Engineers specifically set out to achieve a deeper bottom register at higher power with lower distortion. Countless hours of listening tests, measurements, and fine-tuning brought an exciting and stunning result. We hope you will agree.