Amplifiers

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Atma-Sphere M-60

Atma Sphere M-60

Hi-End Audio Tube Amplifiers, 2 x 60 Watts, OTL monoblocks, Mk 3.3

For years now the M-60 in its various forms has been the subject of the Soundstage! Hall of Fame Award, The Absolute Sound Golden Ear Award and Editor’s Choice, with numerous accolades in the press and on the web.

The M-60 Mk. 3.3 continues that tradition with classic styling and its award-winning state-of-the-art performance. The M-60 gives you the features and precision performance of our larger models in a beautiful, 60-watt package. The amp operates class A and is unconditionally stable with reliability proven over many years.

The power tubes are inexpensive, readily available and do not require any matching. Sporting a classic, open-chassis construction, the M-60 Mk. 3.3 sets the bar for hi-end amplifier performance.

FEATURES

– Balanced Differential Design®
– Class-A2 operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Automatic bias – no adjustment needed
– Built in VU meter for tube and output monitoring
– Easily monostrapped for greatly increased power
– Standby switch for long output tube life
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Exclusively uses Octal-Triode based vacuum tubes
– Classic open chassis construction with Wrinkletex™ finish
– Three-year general coverage warranty, one year warranty on output tubes

Output power
60 watts per channel into 8 Ω load
45 watts per channel into 4 Ω load
80 watts per channel into 16 Ω load

Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced Output Impedance: ~4.1 Ω

Input
3 V sensitivity ( for full output )
RCA and XLR true balanced input

Tube complement
8 x 6AS7G output tube ( per channel )
4 x 6SN7 driver tube ( per channel )

Gain
20dB (for 8 Ω)

Power Bandwidth
2Hz-75KHz within ½ dB

Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable
1Hz-200KHz within 3 dB

Power supply storage
140 Joules ( per channel )

Distortion
Total Harmonic Distortion (THD) typically 1% at full power.
Intermodulation (IM) distortion typically under .04% at full power.
Phase shift less than 1° @ 20KHz

Output section risetime
600 V/µs

Feedback
1 dB

Power consumption
300 watts ( per channel )

Dimensions & Weight
13″ deep x 17″ wide x 8″ tall (33 x 43 x 20 cm) per chassis
30 lbs (13.6 kg), per chassis, without tubes

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Atma-Sphere MA-1

Atma-Sphere MA-1

The best tube amplifier worldwide, 2 x 140 watts OTL monoblocks, Mk 3.3

Recipient of The Absolute Sound’s prestigious “Golden Ear Award” in 2000, the MA-1 enjoys an enviable reputation. Now the Mk. 3.3 series builds on proven technology. An improved output section and enhanced driver circuit contribute to superior low-level detail, smoother sound, wider bandwidth and AC power immunity. The rugged, non-magnetic chassis features classic looks with superior layout. Setup of the amplifier is simple with it’s automatic biasing system. The controls and switches are ergonomic without sacrificing performance.

The MA-1 is extraordinary in every way. Not only is normal operation easy on the vacuum tubes, the effect of a tube failure on the unit is entirely inconsequential. Despite its extreme performance, the MA-1 is known for remarkable ease of setup, ease of operation, day-to-day consistency and of course extreme musicality.

Featuring our new custom wire, V-Cap Teflon coupling caps, custom resistors, and all the other extras for which we are known, the MA-1 shines as an example of why our amplifiers are the best amplifiers worldwide, regardless of cost.

FEATURES

– Balanced Differential Design®
– Class-A operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Automatic bias – no adjustment needed
– Built in VU meter for tube and output monitoring
– Easily monostrapped for greatly increased power
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Exclusively uses Octal-Triode based vacuum tubes
– Classic open chassis construction with Wrinkletex™ finish
– Three-year general coverage warranty,
– One year warranty on output tubes

Output power
140 watts per channel into 8 Ω load
135 watts per channel into 4 Ω load

Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced Output Impedance: ~2.3 Ω (power method standard measurement)

Input
2.8 V sensitivity
RCA and XLR true balanced input

Tube complement
14 x 6AS7G output tube ( per channel )
5 x 6SN7 driver tube ( per channel )

Gain
25dB (for 8 Ω)

Power Bandwidth
2Hz-200 KHz within ½ dB

Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable
1Hz-300KHz within 3 dB

Power supply storage
600 Joules ( per channel )

Distortion
Total Harmonic Distortion (THD) typically 0.5% at full power.
Intermodulation (IM) distortion typically under .005% at full power.
Phase shift less than 1° @ 20KHz

Output section risetime
600 V/µs

Power consumption
500 watts ( per channel )

Dimensions
18″ deep x 17″ wide x 8.5″ tall ( 46 x 43 x 22 cm)
per chassis

Weight
36 lbs. ( 16.3 kg ), per chassis, without tubes

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Atma-Sphere MA-2

Atma-Sphere MA-2

Extremely powerful, hi-end OTL amplifier, 2 x 220 watts monoblocks, Mk 3.3

Introduced in 1990, the MA-2 was the largest production triode amplifier and the largest production OTL in the world for nearly 12 years. In that time it set the bar for quality that has yet to be surpassed; it is one of the finest amplifiers made anywhere in the world regardless of price. Not only is it one of the most powerful production Output Transformerless amps available, it is also the most reliable. Audio purists have craved the design features of this amplifier since the beginning of Hi-Fi; only Atma-Sphere has succesfully put them all in the same place at the same time.

Now the Mk. 3.3 boasts an improved gain stage with even wider bandwidth and greater transparency than ever before. We have added switchable feedback and automatic tube biasing to round out the package. Yet it remains smooth, detailed, and tuneful with a speed that belies such a large tube amplifier. Unlike many other amplifiers, it will stand up to constant playback without any noticeable artifact. And the improvements the MA-2 offers will be obvious on any system within seconds of powering it up; it sounds that good.

The MA-2 is noted for its superior performance on Sound Lab, Wilson Audio, JM Labs, Magnaplanar and Avalon loudspeakers. These are speakers that need an amplifier capable of serious power. An amplifier that can fully utilise the full bass frequency range of the speaker with the proper control and impact, while simultaneously retaining detail, delicacy, and speed. This is an unusual combination but this is what sets Atma-Sphere apart from the competition.

FEATURES

– Balanced Differential Design®
– Class-A operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Automatic bias – no adjustment needed
– Built in VU meter for tube and output monitoring
– Copper foil V-Cap Teflon coupling caps
– Easily monostrapped for greatly increased power
– Standby switch for long output tube life
– Dual AC power circuits for each chassis
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Exclusively uses Octal-Triode based vacuum tubes

Output power
220 watts per channel into 4, 8 or 16 Ω load before clipping

Impedance
Input Impedance: 100 KΩ single-ended,
200 KΩ balanced – selectable to 600 Ω.
Output Impedance: ~1.75 Ω (open loop)

Input
Selectable up to 600 Ω; 2.8 V sensitivity
RCA and XLR true balanced input

Tube complement
20 x 6AS7G output tube ( per channel )
6 x 6SN7 driver tube ( per channel )

Gain
26 dB (for 8 Ω)

Power Bandwidth
2Hz-150KHz within 1/2 dB

Frequency response
( 1 watt, open loop ) 20 Hz squarewave Tilt; unmeasureable, 1Hz-200KHz within 3 dB

Power supply storage
1200 Joules in output section (per channel)
100 Joules in Driver supply (per channel)

Distortion
Total Harmonic Distortion ( THD ) typically 0.4% at full power.
Intermodulation ( IM ) distortion typically under .04% at full power
Phase shift less than 1 degree @ 20KHz

Output section risetime
600 V/µs

Feedback
2 dB

Power Supply Current
80 Amps/channel

Power consumption
800 watts ( per channel )

Dimensions
28″ deep x 17″ wide x 10″ tall ( 71 x 43 x 25 cm ) per chassis

Weight
103 lbs ( 46.7 kg ), per chassis, without tubes

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Atma-Sphere MA-3

Atma-Sphere MA-3

The Best Audio Amplifier in the World. The most powerful OTL amplifier ever built!

The MA-3 is the culmination of a massive project we began in 1998 at the behest of one of our customers. It was 7 years in design, with 15 different chassis and 12 different circuit concept explorations. The goal: to build the largest OTL amplifier the world has ever seen, while at the same time retaining the qualities our amps have made famous. The end result is arguably the the best amplifier in the world!

There is clearly a need for such an amplifier that can make serious power while being completely transparent and musical; fortunately our OTL technology is well-suited to the task. Since we are not limited by issues that plague conventional amplifier designs, the MA-3 retains a wide bandwidth and low distortion simultaneouly. No transformer-coupled amplifier can produce 200, yet alone 400 watts and get it right at every audio frequency; yet the MA-3 makes 500 watts easily, without electronic artifacts. It’s high-power amplifier that is fast and truly musical!

The MA-3 has all of the features as our other models, plus a few not seen in any other amplifier ever produced. It is class A, all-triode, and fully differential, with our patented direct-coupled output circuit and patented automatic bias control. There is only a single gain stage in the amp, so the signal path is very direct – something unknown in amps of this class. And with all it’s customised components, including custom precision Caddock resistors and tailor-made filter capacitors, it is one of a kind inside and out. The overall output power of the MA-3 can be varied by turning on or off banks of output tubes; the amp can operate on 1/3, 2/3, or all of the output tubes. This makes the amp very easy to live with! Of course, even at lower power levels, the MA-3 retains the innate authority and musical character that defines it as state-of-the-art.

Furthermore, the MA-3’s power supply has a built-in AC line processor that regulates the line voltage coming into the amp! As a result, line voltage has no effect on the MA-3; it will make full power even if the AC line level has dropped to only 100 Volts.

We included a very easy to use built-in tube tester (which can be used at any time the amp is on), allowing one to test the output tubes ‘on-the-fly’ in a matter of seconds. Bias and DC offset functions are automated, using an Atma-Sphere-patented method, with meters to monitor the tubes, output power, line voltage and other features.

Output power
500 watts per channel, 2-16Ω load before clipping

Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced selectable to 600 ohms

Input
2.5 V sensitivity,
RCA and XLR true balanced differential input

Tube complement
42 x 6AS7G output tube ( per channel )
12 x 6SN7 driver tube ( per channel )

Power Storage Capacity
1/4 Farad per channel (more than any production amplifier)

Power Bandwidth
1Hz-100KHz within ½ dB

Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable even at full power. 1Hz-200KHz within 0.5 dB

Output section risetime
600 V/µs

Distortion
Total Harmonic Distortion (THD) typically 0.5% at full power
Intermodulation (IM) distortion typically under 0.004% at full power

Power Supply Weight
152 lbs ( 68.9 kg ) per chassis

Power Supply Dimensions
34″ deep x 21″ wide x 12.5″ tall (86 x 53 x 32 cm) per chassis

Amplifier Weight
80 lbs (36.3 kg) per chassis

Amplifier Dimensions
31.5″ deep x 21″ wide x 15″ tall (80 x 53 x 38 cm) per chassis

Panel Meter Functions
VU level
Individual tube condition
Tube Bias status
DC Offset status
AC line voltage
AC line regulator voltage

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Atma-Sphere Novacron Limited Edition

Atma-Sphere Novacron

Limited Edition

Hi-End tube amplifiers, OTL monoblocks, 2 x 60 watts, Mk 3.3

Originally introduced in 1991, the Novacron was the first US product to use the classic 6C33C Russian power triode. Just over twenty years later, Atma-Sphere is pleased to announce the return of the Novacron, now updated to Mk 3.3.

In 1991, not only was the amplifier on the cutting edge of high-fidelity sound reproduction, it was an outstanding example of aesthetic industrial design. Today, the new Novacron combines the characteristics of the 6C33C triode with the same legendary circuit topology that has made our other amplifiers famous. Recent advances have rendered the Novacron even more reliable, easier to use, and inherently musical; maintaining the proper balance between sound and circuitry.

Designed for reproducing music, not sine waves, the Novacron tracks dynamic waveforms faster than any other amplifier in the world. It naturally uncovers more detail than an ordinary amplifier, realizing your music as it was meant to be heard.

FEATURES

– Balanced Differential Design®
– Class-A operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Copper foil V-Cap coupling caps
– Teflon output tube sockets
– Simple manual bias system
– Built in VU meter for tube and output monitoring
– Easily monostrapped for greatly increased power
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Three-year general coverage warranty, one year warranty on output tubes

Output power
60 watts per channel into 8 Ω load

Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced Output Impedance: ~2 Ω

Input
3 V sensitivity, RCA and XLR true balanced input

Tube complement
4 x 6C33C power triode ( per channel )
4 x 6SN7 driver tube ( per channel )

Gain
24dB (for 8 Ω)

Power Bandwidth
2Hz-100 KHz within ½ dB

Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable
1Hz-200KHz within 0.5 dB (-3dB @ 1 MHz)

Power supply storage
600 Joules / chassis

Distortion
Phase shift less than 1° @ 20KHz

Output section risetime
600 V/µs

Power consumption
400 watts ( per channel )

Dimensions
13″ deep x 17″ wide x 8″ tall (33 x 43 x 20 cm) per chassis

Weight
30 lbs (13.6 kg)per chassis, without tubes

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Atma-Sphere S-30

Atma-Sphere S-30

High End OTL Tube Amplifier, 2 x 30 Watts, Mk 3.3

The S-30 is the unchallenged state-of-the-art in low power vacuum tube amplifiers. With its simplicity of operation, small footprint, and all the features of our larger amps, the S-30 represents the high-water mark of compact OTL design.

For those who seek the ultimate in amplifier design the S-30 gives you the same precision and sound quality for which Atma-Sphere is known. Featuring automatic bias and a large VU meter, operation is elegantly simple.

Because it utilises decades-proven patented handwired circuitry, it is stable with any load and both performs and sounds better than any single-ended amplifier ever produced, let alone conventional push-pull designs. Its fully-balanced design and proven class-A triode operation make the S-30 the ideal choice for the discriminating audiophile.

FEATURES

– Balanced Differential Design®
– Class-A operation
– Patented Circlotronic® direct-coupled (OTL) output stage
– Dual-mono chassis construction
– Automatic bias – no adjustment needed
– Built in VU meter for tube and output monitoring
– Easily monostrapped for greatly increased power
– Uses only one gain stage for supreme clarity of sound
– Proprietary precision components used throughout
– Low-noise “star” grounding topology
– Fully hand-wired point-to-point electronics – no circuit boards!
– Stable with all input and load conditions
– Exclusively uses Octal-Triode based vacuum tubes
– Classic open chassis construction with Wrinkletex™ finish
– Three-year general coverage warranty, one year warranty on output tubes

Output power
30 watts per channel into 8 Ω
45 watts per channel into 16 Ω

Impedance
Input Impedance: 100 KΩ single-ended, 200 KΩ balanced Output Impedance: 7 Ω

Input
3 V sensitivity
RCA and XLR true balanced input

Tube complement
10 x 6AS7G output tube
6 x 6SN7 driver tube

Gain
23dB (for 8 Ω)

Power Bandwidth
2Hz-75KHz within ½ dB

Frequency response
(1 watt, open loop) 20 Hz squarewave Tilt, unmeasureable
1Hz-200KHz within 3 dB

Hum and noise
Less than -75db below 1 watt,
-95db below full power (30 watts)

Distortion
Total Harmonic Distortion (THD) typically 1% at full power.
Intermodulation (IM) distortion typically under .04% at full power.
Phase shift less than 1° @ 20KHz

Output section risetime
600 V/µs

Feedback
2 dB

Power consumption
400 watts

Dimensions & Weight
13″ deep x 17″ wide x 8″ tall ( 33 x 43 x 20 cm )
24 lbs ( 10.9 kg ), without tubes

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Line Magnetic Integrated LM-805IA

The Line Magnetic 805iA uses single-ended triode 805 tubes and operate in pure Class A. It delivers 2x48W power. It has 3 unbalanced line inputs, 1 bypass input and 4, 8, 16Ω output groups. The rear-illuminated front panel meter is used to adjust the polarization of the tubes.

The use of high-quality components (Mundorf N-Cap capacitors, ALPS potentiometer) wired in the air, for the most part, is the guarantee of exemplary reliability. Its power and current capacity allow it to manage a very wide range of speakers. The use of the legendary triode 805 offers to listen to an unusual musicality.

HIGHLIGHTS
– Single-ended design
– Class A amplifier
– Point-to-point wiring
– High-quality components

TUBES
Input stage: 1x 6SL7 2x 6SN7
Drivers: 2x 300B
Power stage: 2x 805 « single-ended » Pure Class A

Hand-made construction with the finest point-to-point wiring
Bias control is accessible on top of the amplifier panel with true ampere meter.
Analog Inputs: 3 line inputs, 1 by-pass input Load impedance: 4/8/16Ω SoftStart and time-delay circuit. (30 seconds)
Specially designed EI transformer for power supply
Two EI output transformers with wide bandwidth are applied
ALPS volume control and Realcap capacitors are applied.

Metal and removable tube guard cage
Infrared Remote control

Tubes Basics   Common Replacements
300B   600B, 300A, 4300B
6SL7   6N9P, 6H9C, CV1985, ECC35
6SN7 6H8C, 6N8P, 5692, CV181, ECC33
805 805, FU-5

Specifications
Class A amplifier – 2x48W RMS
THD: 1% (1kHz)
Signal/Noise ratio: 87dB (Weighted A)
Fréquence Responsive: (-1.5dB) : 10 – 50.000 Hz
Sensitivity: 300 mV (Built-in Mode)
Input Impedance: 100kΩ
Load impedance for HP to connect: 4/8/16Ω

Connectors
3x Line inputs RCA (pair)
1x Pre-in input
2x Screw terminals compatible with banana plugs

Dimensions: W 430 x H 275 x D 415 mm
Weight: 42 Kg

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Line Magnetic LM-150IA

Integrated Tube Amplifier

Push Pull KT150 – 2X100W

The LM-150IA uses for its power stage 4x KT150 polarized class AB and delivering a power of 2x100W RMS.

Tubes we choose are Shuguang 12AX7, Shuguang 12AU7, Electro Harmonix 6SN7 and Tung-sol KT150. No matter it is the Pre-stage or power stage of tubes we select and choose the best matching ones to use the same unit of the amplifier to get the best sound quality out of it.

Different from other inputs Pre-In offers you a possibility to connect to some other Preamplifier so that you can the LM-150IA as a power amplifier. User bias control has been used for bias adjustment including 2 vu-meters.

Highlights
– High-end design
– Point-to-point wiring
– High-quality components
– High power

TUBES
Input stage: 2x 12AX7
Rectifier: 1x 12AU7
Drivers: 2x 6SN7 (Electro Harmonix)
Power stage: 4x KT150 (Tung-sol)

Hand-made construction with the finest point-to-point wiring
Bias control is accessible on top of the amplifier panel with true ampere meter.
Analog Inputs: 3 line inputs, 1 by-pass input
Load impedance: 4/8/16Ω
SoftStart and time-delay circuit. (30 seconds)
Specially designed EI transformer for power supply
Two EI output transformers with wide bandwidth are applied
ALPS volume control and Realcap capacitors are applied.

Metal and removable tube guard cage
Infrared Remote control

Tubes Basics Common Replacements

12AX7 12AX7EH, ECC83, E83CC, CV4004, ECC803, 5751
12AU7 ECC82, 12AU7EH, 5814, 6189, CV4003
6SN7 6NP8, 6H8C, 6H8M, 6F8G, CV181, QB65, ECC32

Specifications
Class AB amplifier
THD: 1% (1kHz)
Signal/Noise ratio: 87dB (Weighted A)
Frequency response (-1.5dB): 10 – 50.000 Hz
Sensitivity: 220 mV (Mode intégré)
Input impedance: 100kΩ
Load impedance for HP to connect: 4/8/16Ω

Connectors
3x Line inputs RCA (pair)
1x Pre-in input
2x Screw terminals compatible with banana plugs

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Line Magnetic LM-210IA

Integrated Tube Amplifier

The integrated amplifier LM-210IA is a Single Ended amplifier with 2x 300B tubes in Class A amplification and delivers 2x8W. Output transformers are oversized. Listening the magic of the 300B is total both in the richness of the timbres and the subtlety of the sound scene. The use of high quality components (Realcap capacitors, ALPS potentiometer) wired in the air for the most part is the guarantee of exemplary reliability.

Its transformers output are of EI type, specially designed for power supply. 4 pairs of input and speaker terminals for 4, 8 or 16 ohm speakers are located on the back panel. The rear-illuminated front panel meter is used to adjust the polarization of the tubes.

Important features
-Hand-made construction with the finest point-to-point wiring.
-Bias control is accessible on top of the amplifier panel with true ampere meter.
-Backlight on/off selector: Turns the meter light on or off.
-NFB selector min / max: Adjustment of the feedback level.
-Integrated / Pre-in selector: Switch from built-in preamplifier to external.
-Specially designed EI transformer for power supply.
-Two EI output transformers with wide bandwidth are applied.
-ALPS volume control and Realcap capacitors are applied.

Class amplifier A
Output power 2x8W RMS

Tubes
Input stage 2x 12AX7
Drivers 2x 310A
Rectifier 2x 5U4G
Power stage 2x 300B; Single Ended design, Pure Class A
THD 1% at 1 kHz
S/N >8 dB, Class A
Frequency response 15Hz to 35kHz (-1.5 dB)
Sensitivity 400 mV (Built-in Mode) 1000 mV (Pre-in Mode)
Input Impedance 100kΩ
Load impedance for HP to connect 4/8/16Ω
Connectors 3x Line inputs RCA(paire)

Dimensions W 380 x D 405 x H 345mm
Weight 32 Kg

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Line Magnetic LM-211IA

INTEGRATED TUBE AMPLIFIER
PUSH PULL EL34 – 2X32W

The Line Magnetic integrated amplifier LM-211IA is a push pull amplifier with 4x EL34 tubes in Class AB amplification and delivers 2x15W in triode mode and 2x32W in ultra-linear mode. It has 4 balanced line inputs and 4/8Ω output groups.

The rear-illuminated front panel meter is used to adjust polarization of the tubes. The use of high quality components (Realcap capacitors, ALPS potentiometer) wired in the air for the most part is the guarantee of exemplary reliability. Its transformers output are of EI type, specially designed for power supply. The LM-211IA delivers dynamic, rich and natural sound.

Highlights
– Push-pull
– Class AB amplifier
– Point-to-point wiring
– High quality components

TUBES
Input stage: 2x 12AX7 et 2x 12AU7
Power stage: 4x EL34

Hand-made construction with the finest point-to-point wiring
Bias control is accessible on top of the amplifier panel with true ampere meter.
Analog Inputs: 4 line inputs
Load impedance: 4/8Ω
SoftStart and time-delay circuit. (30 seconds)
Specially designed EI transformer for power supply
Two EI output transformers with wide bandwidth are applied
ALPS volume control and Realcap capacitors are applied.

Metal and removable tube guard cage
Infrared Remote control

Specifications
Class AB amplifier
2x15W RMS Triode 2x32W RMS Ultra-linear
Tubes: 2x 12AX7, 2x 12AU7, 4x EL34
THD: 1% (1kHz)
Signal/Noise ratio: 88dB (Weighted A)
Frequency response: 10 à 50.000 Hz (-1.5 dB)
Sensitivity: 200 mV (Built-in Mode)
Input Impedance: 100kΩ
Load impedance for HP to connect: 4/8Ω

Dimensions: W 376 x H 192 x D 345 mm
Weight: 19.6 Kg

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Line Magnetic LM-212PA

Mono Power Amplifier

The LM-212PA mono power amplifier is Line Magnetic’s flagship, using a massive 212 tube in a single ended design and complete with an ingenious lifting/retracting function that protects the tube for accidental damage when not in use.

The input stage tube is a 310A, specially manufactured for and by Line Magnetic. Rectification is performed by a 274B and a 300B works as the driver tube.

Nothing but top grade components are used in the LM-212PA mono power amplifier, such as American RTX Multicap capacitors, Danish Jensen capacitors, German Mundorf MCap capacitors, NCC capacitors, Nichicon capacitors, Kiwame capacitors, a Motorola high current rectifier bridge and Panasonic relays.

Bias for the 212 tube is easily adjusted using the top mounted ampere meter. The 300B driver bias is controlled by an auto-bias circuit and does not need to be adjusted.

Some Highlights
– Single-ended design
– Class A amplifier
– Point-to-point wiring
– High quality components

Tubes used in this amplifier
Input stage: 1x 310A
Driver: 1x 300B
Rectifier: 1x 274B
Power stage: 1x 212

Features
Hand-made construction with the finest point-to-point wiring
SoftStart and time-delay circuit – 30 seconds
Specially designed EI transformers for power supply and output
212 tube protection mechanism

Tubes supplied Common replacements
300B 300A, 4300B
310A Soviet Union/om12C, WE310A
274B 5R4GY, 5X4G
212 ML-212E

Specifications
Class A amplifier – 1x32W
THD: 1% (1kHz)
Signal/Noise ratio: 87dB
Frequency response: 15-35,000 Hz (-1.5 dB)
Sensitivity: 1000 mV
Input Impedance: 100KΩ (RCA), 600Ω (XLR)
Load impedance: 4/8/16Ω

Connectors
2x Line input RCA
1x Line input XLR
1x Screw terminals compatible with banana plugs

Dimensions: W 300 x H 600 x D 575 mm
Weight: 60 Kg
Finish: Silver

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Line Magnetic LM-216IA

Integrated Tube Amplifier

Push Pull KT88 – 2X38W

The Line Magnetic integrated amplifier LM-216IA is a push-pull amplifier with 4x KT88 tubes in Class AB amplification and delivers 2x22W in triode mode and 2x38W in ultra-linear mode. It has 4 balanced line inputs and 4/8Ω output groups. The rear-illuminated front panel meter is used to adjust the polarization of the tubes.

The use of high quality components (Realcap capacitors, ALPS potentiometer) wired in the air for the most part is the guarantee of exemplary reliability. Its transformers output are of EI type, specially designed for power supply. The LM-216iA delivers dynamic, rich and natural sound.

Highlights
– Triode/ultra-linear modes
– Point-to-point wiring
– High quality components

TUBES
Input stage: 2x 12AX7 et 2x 12BH7
Power stage: 4x KT88

Hand-made construction with the finest point-to-point wiring
Bias control is accessible on top of the amplifier panel with true ampere meter.
Analog Inputs: 4 line inputs
Load impedance: 4/8Ω
SoftStart and time-delay circuit. (30 seconds)
Specially designed EI transformer for power supply
Two EI output transformers with wide bandwidth are applied
ALPS volume control and Realcap capacitors are applied
Metal and removable tube guard cage
Infrared Remote control

Specifications
Class AB amplifier
2x22W RMS Triode and 2x38W RMS Ultra-linear
Tubes: 2x 12AX7, 2x 12BH7, 4x KT88
THD: 1% (1kHz)
Signal/Noise ratio: 87dB (Weighted A)
Frequency response: 10 à 50.000 Hz (-1.5 dB)
Sensitivity: 220 mV (Built-in Mode)
Input Impedance: 100kΩ
Load impedance for HP to connect: 4/8Ω

Connectors
4x Line Inputs RCA (pair)
2x Screw terminals compatible with banana plugs

Dimensions: W 376 x H 192 x D 345 mm
Weight: 19.6 Kg

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