Manley Labs AMPLIFIERS owner manual Overhead View, Tube Location & Type

Page 6

OVERHEAD VIEW

 

 

 

INPUT

INPUT

BAL/UNBAL.

FUSES:

IEC MAINS

OUTPUT

XLR

RCA

SWITCH

B+ MAINS

 

 

 

 

 

 

IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 4

EL34s/KT90s

12BH7/ 12BH7/

6414 6414

12AT7

7 9

EL34s/KT90s

1

3

5

6

8

10

Tube Location & Type

OUTPUT TUBES: 10 x EL34 (250W) or 10 x KT90 (500W): The EL34 types we recommend are the Sovtek EL34G, EL34G+, EL34WXT, Electro-Harmonix EL34EH or the JJ EL34GT as supplied to us by our pals at Groove Tubes. For the 500W model, we recommend using the KT90EH by Electro-Harmonix. These have been proven to be the most rugged, reliable, and best sounding for these amplifers and we strongly emphasize that only these types should be used in these amplifiers. The MANLEY NEO-CLASSIC 250 & 500W MONOBLOCKS have been thoroughly optimised around these tubes. Use of unapproved tube types can and will void your warranty. We have selected the tubes for equality of current draw in our custom-built computerized tube tester for each of your monoblocks . Although each tube bias can be individually adjusted, "matched" tubes as we have selected are thouroughly beneficial to the amplifier's performance.

DRIVER TUBES: 2 x 12BH7A (250W) or 2 x 6414 (500W): We use the Yugoslavian Ei 12BH7 for the driver tubes in the 250s these days. They seem a little better than the more easily available Russian Electro-Harmonix 12BH7EH's. Good luck trying to find any American 12BH7A NOS these days.... For the 500W model, we

use 6414W tubes made by GE. In both models, each tube handles a phase and each tube's dual triodes are paralleled up. So selecting for triode-to-triode matching on each of these driver tubes is completely unneccessary.

INPUT TUBE: 12AT7WA (250W/500W): The 12AT7WA has several equivalent numbers: 12AT7, 12AT7A, 6201, ECC81, etc. Any of these types may be used. We have selected this 12AT7WA very carefully for noise, microphonics, and constancy. We like the large plate Ei Yugoslavian tubes for this application. The two triodes are paralleled so matching of the two triodes is not necessary. Just select for low noise examples.

Replacement tubes of premium quality tested for best performance in this amplifier are always available from MANLEY LABORATORIES. Fill out the PARTS ORDER FORM on our website if you'd like to order some spare tubes or fuses.

6

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Tubes Rule Contents Introduction Mains Connections If you live in a strange placeConnecting Your Amplifier Overhead View Tube Location & TypeFront View Manley Rear ViewSwitching on -- Soft Start Operational NotesBias Procedure Also refer to Troubleshooting Specifications 250W Specifications 500W Page Warranty Registration Packaging Amplifier Pre-packing Instructions

AMPLIFIERS specifications

Manley Labs, a renowned name in high-fidelity audio equipment, has established a reputation for its premium amplifiers, celebrated for their exceptional sound quality and innovative design. With a commitment to craftsmanship and the integration of cutting-edge technology, Manley amplifiers cater to audiophiles and professionals alike, delivering a listening experience that is both immersive and authentic.

One of the hallmark features of Manley amplifiers is their use of high-quality vacuum tubes in many of their models. The warmth and richness that tubes impart to the audio signal are particularly appealing to music lovers who seek a classic analog sound. Models like the Manley Stingray and the Manley 300B offer a distinctive tonal character, allowing musicians and listeners to experience the nuances of recordings as intended by the artists.

In addition to tube technology, Manley amplifiers frequently incorporate advanced solid-state circuitry, striking a balance between traditional warmth and modern reliability. The Manley Reference Amplifier exemplifies this hybrid approach, featuring a robust power supply and precision engineering that ensures a clean, dynamic sound. This versatility allows the amplifiers to perform beautifully in various listening environments, from home setups to professional studio applications.

Manley Labs is also notable for its attention to build quality. The amplifiers are crafted in the USA, utilizing high-grade components and rigorous quality control processes. This commitment to craftsmanship means that every unit is built to last, ensuring long-term reliability and performance. The aesthetic appeal of Manley amplifiers, with their distinctive vintage-inspired designs and premium finishes, further enhances their desirability.

Another key characteristic of Manley amplifiers is their versatility in handling various types of audio signals. Models like the Manley Neo-Classic 300B can accommodate both low-impedance and high-efficiency speakers, making them suitable for a wide range of setups. Additionally, features such as customized input and output transformers help to optimize the performance for different audio sources.

In conclusion, Manley Labs amplifiers embody a blend of vintage charm and contemporary engineering. Their proprietary tube designs, robust solid-state options, and unwavering quality make them a standout choice for anyone seeking an exceptional audio experience. Whether in a casual listening room or a high-end studio, Manley amplifiers promise to deliver richness, clarity, and a connection to the music that transcends the ordinary.
Top Page Image Contents