Neo-Classic 250 Monoblocks

                                      Manley Neo-Classic 250 Watt Monoblocks

                              10 x EL34 monoblock 125 Watts Triode250 Watts Tetrode

                                      Boxes & Manuels and biasing meter as new.

                              Low hours on tubes bias and hold bias exceptionally well.

                                            NO LOW OFFERS CONSIDERED:

              

   http://www.stereophile.com/tubepoweramps/670/#3I1O2RqS70hdf8lT.97

                                        Stereophile's conclusion:

                           Like a big ol' Harley-Davidson, only better...

The 250 Neo-Classic had that hard-to-define quality that is instantly
apparent when heard: a fundamental fidelity to the music. Its character
was a bit forgiving, particularly in triode mode, but it did justice to
the timbral and spatial microdetails found on the best recordings. In
tetrode mode, it should handily drive any speaker I've ever heard to
Stupid-Approved loudness levels in anything short of an airplane hangar.

Like its ebullient author, the 250 Neo-Classic utterly lacked
anything resembling pretentiousness. In a sense, the big Manley was
anti-"hi-fi." Its sonic personality was honest to the core and
completely unfussy, treating music as a thing to be loved and cherished,
not as a collection of sounds to be picked apart and analyzed to death.

The Manley Laboratories 250 Neo-Classic is the Harley-Davidson
of amps: big, whompingly powerful, with cool retro style to burn, and a
burly, broad-shouldered presence that inspires great confidence. And no
Manley owner will ever need to worry about oil drips.

Take a pair of 250s out for a spin. You'll definitely enjoy the ride.

• ALL-TUBE monoblock design: uses 10 x EL34JJ output tubes


• Driver Stage: High current double 12BH7EH (x2) Electro-Harmonix Russian


• Input Tube: 12AT7EH large plate Electro-Harmonix Russian


• BALANCED & UNBALANCED inputs: RCA and XLR jacks (switchable)


• MUTE switch: on front panel


• TRIODE / Ultra-Linear output mode switching: on front panel


• SOFT-START turn on mode: minimizes in-rush current by first powering up amplifier to half voltages


• EVER-WARM mode: for standby keeps tubes warmed up at half voltages


• MANLEY Precision Output Transformer: designed and wound at Manley Labs


• Front panel bias measurement and adjust: Concealed under the black oval insert


• Output Tube Standing Current: 27.5mA


• Set Bias for: 275mVDC measured across each bias tip jack to ground


• Large filter / reservoir capacitors: 3800uF x 2


• Angled rear of chassis: provides for easy connections


• WBT binding posts: CE compliant for European models


• Input Sensitivity RCA: Triode = 1.637 V, Tetrode = 1.837 V for full power


• Input Sensitivity XLR: Triode = 3.2 V, Tetrode = 3.6 V for full power


• Input Sensitivity Triode: 174mV for 1 watt into 8 Ohms


• Input Sensitivity Tetrode: 146mV for 1 watt into 8 Ohms


• Gain Triode: 30dB


• Gain Tetrode: 32dB


• Input Impedance RCA: 116 kOhm @ 1KHz


• Input Impedance XLR: 270 kOhm @ 1KHz; 20 kOhms @ 20KHz; 38 kOhm @ 20Hz


• Actual Output Impedance Triode: 0.538 Ohm


• Actual Output Impedance Tetrode: 0.465 Ohm


• Optimum Speaker Load: 5 Ohms


• Damping Factor Triode: 14.8


• Damping Factor Tetrode: 17.2


• S/N Ratio Ref 1W into 8 Ohms: -80 dB; -90dB A-WGT


• Dynamic Range: 93dB


• FLAT frequency response: 10 Hz - 30 KHz continuous


• Full Power Tetrode: 250W @ 1.5% THD into 5 Ohms


• Full Power Triode: 100W @ 1.5% THD into 5 Ohms


• Power Consumption: 30 Watts in "EVER-WARM" mode


• Maximum Power Consumption: 815 Watts at full power


• Operating Mains Voltage: Factory set for 100V, 120V or 220-240VAC operation for original destination country's mains voltage.


• Operating Mains Voltage: changeable with power transformer re-wiring and fuse value change.


• Mains Voltage Frequency:


• Mains Fuse 100-120VAC operation: MDA 10 Amp SLO-BLO Ceramic Time-Delay fuse


• Mains Fuse 220-240VAC operation: MDA 8 Amp SLO-BLO Ceramic Time-Delay fuse


• B+ Fuse: MDA 1 1/2A SLO-BLO Ceramic Time-Delay fuse


• Badge Illumination: Units produced before 4/2003 use 8V, 0.3A "Fuse-Lamp" 1/4" X 1 1/4"
  - Serial numbers after N250188 use LED illumination which probably won't burn out


• Power Cord: Detachable IEC standard. Appropriate power cord supplied for destination country


• Dimensions: W=19" x D=13" x H=9"


• Shipping Weight: 73 Lbs. each

A magazine reviewer once wrote the following about the Manley 250's:
"In triode mode a pair of Manleys 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 cut 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 pass
through that emotional information, but the (solid-state amps) don't."
Tried and true: The Manley 500 and 250 Watt Monoblocks are our most
powerful push-pull production-models. Both the circuit design and the
selected componentry have been refined over years and years of
development. Reliability that you can depend upon combined with musical
accuracy and emotional authority is what these amplifiers promise- and
deliver. They are able to switch operation modes allowing the listener
to choose between the sonically seductive qualities of triode and the
more powerful Ultra-Linear configuration. We use big, beefy reservoir
capacitors in the high voltage supplies giving plenty of instant energy
for dynamic performance of transient peaks and bass impact and weight
which often exceeds that of rival solid-state amplifiers. We run high
voltages on the plates of the output tubes but operate them at lower
current which will result in their longer life. Although each output
tube has its own bias-adjust, We 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 a heavy power drain when the cold amplifier is first
switched on, we conceived a "Soft-Start" mode which also functions as an
"Ever-Warm" position allowing the amplifiers to be always warmed up for
pleasurable listening. Each amplifier only consumes 30 watts of power
in Ever-Warm mode. A blinking green LED reminds the user that the
amplifier is in warm-up mode because as all the power supplies are at
half-voltage, the amplifier will still operate at half power when the
Ever-Warm mode is engaged, so the user should use the MUTE switch when
in this mode.

The front-panel mute switch and angled-back chassis make it easier to
hook up the interconnects, speaker cables, and IEC power cord.

In our own in-house magnetics department, our R&D team completely
redesigned all of our output transformers in 1998 with the goal to
reclaim that luscious rich mid-range of our vintage designs. In 2013 we
reworked the output transformer to operate the output stage in
Ultra-Linear mode which is a great sounding balance between the detail
of triode and the brawn of Tetrode. We also specifically set out to
achieve a deeper bottom register at higher power with lower distortion.
Hours and hours of listening tests, measurements, and fine-tuning
brought an exciting and stunning result to our ears. We hope you will
agree.

                            < ============================ >

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are always interested in purchasing quality Audio and Video items, LP
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Call me directly in my world class showroom in Los Angeles weekdays

from 11-4PM @ 310-472-8880 or on my cell including weekends from 10-10PM

at 310-927-2260 and I can answer your questions and help you with all of

your new and pre owned needs.

   Making better Sound One

      system at at a time,

       

David Weinhart
Weinhart Design, Inc.
President & CEO

The Audio and Video Expert
e: [email protected]
www.weinhartdesign.com

2337 Roscomare Road, Studio #1
Los Angeles, California 90077

Showroom) 310-472-8880
Cell) 310-927-2260