Manley Laboratories Product Reviews

150 75SE PP807 MonoBlock Amplifier
The 150/75SE/PP807 Monoblocks can switch from either 75 watts in single ended to 150 watts in push pull. The 807 tube was chosen for good reasons, easy availability and high reliability, but mainly for its glorious sound in its triode strapped configuration. Manley chose 8 of them in parallel as the output stage which presents a favorably low anode impedance to the output transformer which in turn provides a very low impedance drive to the loudspeaker and a much higher damping factor than other single ended designs. Single ended detail with high power brawn.

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250 Watt Monoblock Amplifier
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 tetrode configuration. To avoid a heavy power drain when the cold amplifier is first switched on, Manley 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.

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350 Watt Amplifier
The Manley Reference 350 watt monoblocks were built at the old VTL factory back before the Manley-VTL split-up that took place in 1993. They were at the time Manley's second-to-largest models in the Designer's Reference Series. They were 8-output tube designs. The 350's were usually ultra-linear configured (although some units were fitted with triode-tetrode switching) and used either GE 6550A's before 1990 or KT90's after 1990. The Input tube was always the 12AT7A or 6201. Some early models used the 12BH7A for driver tube although most of the actual production models used 6350 driver tubes. Those two tube types have the grids and cathodes swapped on the pinout so make a big note that the 6350 and the 12BH7A are NOT interchangeable without reworking the circuit board! Manley 350's had a sheet-metal chassis and stainless-steel covers. Cool features of these amplifiers included the adjustable "slope" and "feedback" controls that allow the user to select different feedback capacitive and resistive values respectively. Also handy were the front panel mounted bias readout tipjacks and tube readout selector even though one still had to address the top deck of the amplifier to make the actual bias adjustments. Many of the later Manley 350's had MIT-Multicaps. And some of them even had TRIODE / TETRODE switches.

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$0.00 Product Rating:

50 Watt Monoblock Amplifier
These compact gems produce 50 watts RMS from a quartet of EL84 / 6BQ5 tubes driven by a 6414 dual triode driver and a 12AT7WA input dual triode. The Ei Yugo EL84 has been one of our very favorite tubes for many years, extremely long lasting and reliable, and can be considered the smaller brother of the much beloved EL34: really quick-sounding both in the bass and especially in the top end. And of course this has a lot to do with the new Manley Output transformer.

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500 Watt Monoblock
- All-Tube monoblock design.
- High current double 6414 driver stage.
- 12AT7WA input tube.
- Balanced & Unbalanced inputs.
- Triode / Tetrode switching.
- Soft-start/ Ever-Warm standby mode.
- Manley Precision dual-coil output transformer.
- Factory set for 5 ohms nominal.
- Front panel bias measurement and adjust.
- Large filter / reservoir capacitors.
- Milled aluminum cabinetry provides rigid mounting.
- Flat frequency response: 10 Hz - 30 KHz continuous.
- Power Consumption: 30 Watts in ""EVER-WARM.""
- Manley 500 Watt model.
- 10 x KT90 or 6550C output tubes.

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Mahi

Output Power: 40 Watts
Frequency Response: 10Hz to 90kHz
Input Sensitivity: 460 mV nominal
Input Impedance: 100 kohms
S/N Ratio at 50 Watts: 80dB
Dynamic Range: 86dB

MSRP:
$2500.00 Product Rating:

Reference 240 monoblock

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$7000.00 Product Rating:

SE PP 300B Retro Amplifier
Vacuum Tubes:
- 2 x 300B (Output).
- 1 x 6SN7 (Driver).
- 1 x 6SL7 (Input), 2 x 5U4 (Rectifier).

Output Power @ 3% THD:
- (SE 0 dB FB): 18 Watts, (SE 10 dB FB): 25 Watts.
- (PP 0 dB FB): 36 Watts, (PP 10 dB FB): 42 Watts.

Frequency Response:
- (SE 0 dB FB): 15 Hz -16 KHz, (SE 10 dB FB): 15 Hz - 28 KHz +-1dB, (PP 0 dB FB): 10 Hz - 22 KHz (measured at 5W).
- (PP 10 dB FB): 10 Hz - 60 KHz.

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Snapper

Power Output: 100 Watts
Frequency Response: 18Hz to 24kHz
RCA Input Sensitivity: 800 mV RMS
XLR Input Sensitivity: 4V RMS
RCA Gain: 32dB

MSRP:
$4250.00 Product Rating: