909 MK V POWER AMPLIFIER

909 MK5  Power Amplifier

Since 1990, the 909 represents the pinnacle of power amplification in the audio domain; our smaller models 911 and 956 are its direct descendants.

In the eyes of the expert press, the 909 is the “non plus ultra”. And, like all amplifiers from Burmester, the signal path of the 909 is fully balanced from front to end as well as DC-coupled.

The 909 distinguishes itself by an extremely high damping factor. Combined with the ability to deliver very high currents, this enables the 909 to control any loudspeaker effortlessly over the full frequency range. The 909 can easily deliver high continuous load currents and, thus, drive loudspeakers at the lowest impedance values. Resulting from its titanic dimensions in combination with its tremendous capacity, the 909 is internationally regarded as reference. In case the capacity of the stereo-version should not be sufficient enough, we offer the 909 as mono-version as well.

The final touch of the 909 is achieved by the monumental appearance of the legendary power amp. The massive heat sinks, made out of aluminum anodised ribs are regarded worldwide as a characteristic feature of our Burmester power amps with their fine and melodious sound features.


911 MK III POWER AMPLIFIER

911 MK 3  Power Amplifier

The stereo power amp 911 MK3, second largest amp from Burmester, is regarded as one of the most powerful amps on the world market.

The so-called “watt giant” is considered to be one of the fastest worldwide. The insights that have been gained during the creation of our internationally awarded power amp 909 have greatly influenced the design of the 911. The 911 MK3 shows the power amp in its 3rd generation.

Like all Burmester power amps, the 911 MK3 is built fully balanced and DC-coupled without any distorting capacitors in the signal-path.

The new MK3 version distinguishes itself from its predecessor mainly by its completely re-designed output stages, widely in class-A and new silver internal cabeling. A further characteristic attribute are the 911’s silver anodised frame components and heat sinks in their distinctive Burmester design.


036 POWER AMPLIFIER

036 Power Amp


The Classic Line 036 stereo power amplifier combines many amenities of Burmester’s 911 and 956 power amps in a consolidated design. Likewise, it is constructed fully balanced and completely DC-coupled.

The signal path is free of any distorting capacitors. The intelligent protective circuit monitors the 036 during operation for overheating, DC-offset and overdrive.

The transistors of the output stages are placed on the oversized heat sinks that form the sides of the housing. The driver stages, however, are located on a separate internal heat sink. This keeps the wide temperature fluctuations of the heat sinks from shifting the working points of the amplification section.

The power amp 036 has identical amplification stages as the 3-channel power amp 037, the 6-channel power amp 039 or the integrated amplifiers 032 or 082. Therefore, they are dedicated for combination. The resulting “Total Coherence Amplification” (TCA) allows for example a 7-channel system by the combination of 5-channel 039 and 036.

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GENESIS




The challenge of driving Genesis loudspeakers is that they are such excellent transducers that they expose the flaws, or highlight the quality, of everything up the chain - something that almost every review of Genesis loudspeakers has mentioned. Hence, they demand a very well-designed and well-executed power amplifier.

When we developed the Limited Edition line of affordable valve amplifiers as proof of concept that you did not need a megabuck and/or kilowatt amplifier to drive a pair of Genesis loudspeakers, they garnered rave reviews, and sold out quickly. Reviewers took to calling them "reference quality" (Srajan Ebaen - on 6moons), conveying "all the benefits of tube amplification with virtually none of the drawbacks" (Jason Victor Serinus - Secrets of Home Theater and Hifi), "robust, powerful, and full of life" (Jack Roberts - Dagogo).

However, much more than how "reference quality" they are, the objective of the design is to play music with true verve and emotion - not just satisfy some specification. "I was surprised how musically enjoyable the Genesis I60 was" (Jack Roberts - Dagogo) "...the M60's delivered. Drenched with feelings, I wiped away a few tears and ironed out plenty of goose bumps." (Srajan Ebaen - 6moons)

A new Genesis amplifier had to be better than the M60s in all aspects. The design brief was simple, a load invariant, high-current, wide-bandwidth amplifier that would allow the musical performance to come to life. In addition, the new amplifiers had to be capable of driving any model in the Genesis range, from the Genesis 7.1 petite to the towering flagship - the Genesis 1.1.

The Genesis Reference Amplifier challenges the status quo of music amplifiers by marrying the advantages of tube (imaging, soundstage, and portrayal of tonal colors) with solid-state (control, dynamics and accuracy).

Technical Details

The Genesis Reference Amplifier challenges the status quo of music amplifiers by marrying the advantages of tube (imaging, soundstage, and portrayal of tonal colors) with solid state (control, dynamics and accuracy). To achieve this, we had to develop some ground-breaking technologies.

Dynamic Power Delivery Supply (DPDS)

Traditional DC power supplies developed with established design principles are usually specified into a constant current draw with a resistive load. However, except for Class A amplifiers (and Class AB at low power), the load is not constant. The power supply is hence specified for the maximum current drawn, but such a huge power supply is often slow, resulting in a dark, brooding, muscle-bound sound.

The Genesis DPDS, on the other hand, is designed to deliver current into a non-linear, dynamic musical load, leading to a sense of power with finesse. The result is that the Genesis Reference Amplifier has the dynamics, extension and drive of high-power transistor amplifiers without the muscle-bound sound, and the elegance, emotion and tonal colors of flea-powered single-ended triode tube amplifiers without being weak or flaccid.

The origins of the DPDS comes from the principles of tube amplifier design – some of the qualities of tube amplifiers were as much to do with power supply design as the choice of tubes over transistors. Because of the high voltages involved, tube amplifiers use relatively small capacitors and chokes to produce smooth DC power.

Transistor amps use cheaper/larger electrolytic capacitors to do much the same job. From this we discover a very simple fact, smaller capacitors usually sound better. There is good science to predict that the high frequency performance of large capacitors will be poor.

There are lots of very small solid-state amplifiers that have excellent sound. They all had tiny power supplies, and the smaller the power supply, the “faster” they sounded. On the other hand, very large power amplifiers with huge capacitors, or even large banks of smaller capacitors in their power supplies tended to sound dark and slow.

This is the issue of speed vs power. The sprinter is not able to sustain the delivery of power for very long, but the marathon runner is not able to deliver very quick bursts of speed. The DPDS is like a relay team with sprinters, medium-distance, and long distance runners in the team. Thus, it is able to deliver high sustained power, as well as very quick bursts of speed.

Such a “relay team” is what gives the Genesis Reference Amplifier the excellent micro-dynamics, tonal contrasts and timbre textures of low-powered amplifiers, and yet is able to deliver huge dynamics and the sustained deep bass of muscle amps.

The basic DPDS in the Genesis Reference Amplifiers has a “relay team” of seven. This was the point at which further enhancement of the “relay team” produced diminishing returns. Nevertheless, this is also assuming that the amplifier is used to drive a pair of Genesis loudspeakers with its built-in servo-controlled bass amplifier.

Super Silent Low Voltage Supply

We recognized that published specifications for noise rejection of opamps and even discrete small-signal amplification circuits did not always tell the whole story. The problem is that PSRR is usually measured at one frequency – usually 1kHz, but then rapidly gets much worse as the frequency rises. Hence the necessity for line power conditioning.

For the Genesis Reference Amplifier, a low-current regulated power supply was developed that has broad bandwidth noise rejection so that RFI coming in over the power lines do not intrude on your music.

Other Features

  • A grounded Faraday Cage chassis for RFI and EMI rejection improves micro-dynamics and tonal colors and contrast.
  • Balanced components, in the push and the pull parts of the power supply, and having critical components toleranced to less than +/- 1% results in a sense of aliveness and ease in the music.
  • Special circuitry to “keep things warm” without wasting a lot of electricity means that your system is ready for you to listen to whenever you are.
  • Add-On options & modules.

Maximum Dynamic Headroom Reservoir

The Maximum Dynamic Headroom Reservoir (MDHR) is an add-on power supply upgrade for the Genesis Reference Series amplifiers. It is an extension of the Dynamic Power Delivery Supply (DPDS) that is inside the Genesis Reference Series of amplifiers.

Frederic Beudot of 6moons.com said in his review that the improvement the MDHR brings to the Genesis Reference Amplifier is what would normally cost 5 to 10 times its modest asking price.

The MDHR adds another eleven members to the team. This extends the ability of the amplifier to drive loudspeakers with impedances down to less than 1 ohm. In addition, it adds the ability to deliver more dynamics in the lower midrange and upper bass, and adds detail and extension in the upper frequencies. The lowest bass registers are also enhanced so that even speakers without a built-in servo-controlled bass amplifiers will sound like they are able to play deeper and with more authority.

A resonance control circuitry ensures that the “baton handover” from one team member to the next is handled as smoothly as possible.

This results in increased dynamics from having more current available into lower impedance loads and better micro-dynamics – one listener described it as “having cream in your coffee instead of non-fat soy”.

One MDHR can be used for any one single amplifier module – including the GR180 stereo unit, the GR360 stereo unit, the 2-channel servo-controlled bass amplifier module, the 3-channel servo-controlled bass amplifier module, and the GRM monoblock amplifier module.

Acoustic Suspension System

The Genesis Reference Amplifier comes with an acoustic suspension system that isolates the amplifier from floor or structure borne vibrations. Designed like the suspension system of a race car, the acoustic suspension is made of an acrylic suspension frame, neoprene shock absorbers tuned to the weight of the amplifier module, and steel spikes to anchor the suspension frame to ground. The Acoustic Suspension System is also available as an optional upgrade to the Maximum Dynamic Headroom Reservoir.

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CREEK

DESTINY

A Photo Of The Destiny Power Amplifier
only US$ 2,994.00 (In Stock)
free shipping

The Absolute Sound 2007 Editor's Choice Award Winner!

The Destiny Power amplifier is designed to produce world beating audio performance, through its continued use of custom discrete analogue MOS-FET circuitry, which was first developed for Creek’s amplification products in 1993. This circuitry has continued to be used with great success since that time and has evolved to meet the increasing demands for higher power, lower distortion and noise. The Destiny Power Amplifier uses separate power supplies and voltage referencing circuitry for each channel. Dedicated windings on mains transformer help it to achieve >100 Watts into 8 Ohm operation and nearly double that into 4 Ohms. The Destiny Power Amp uses the same protection circuitry as the Destiny Integrated amplifier under fault conditions. Protection of the amplifier and ancillary products under fault conditions is facilitated by an array of sensors and measurement circuits feeding-back information to its microcontroller that monitors the amplifier constantly for over-temperature, over-current, DC offsets, power supply status and over-drive situations. If any of these conditions is exceeded the microcontroller will take the appropriate corrective action. This can include, muting the input signal, separating the speaker outputs and in extreme cases, switching off the mains supply to the power amplifier circuitry. A log of fault conditions is stored in an internal memory device, which is also used to remember the last setting used prior to switching off the mains supply. The Destiny Power amp is unusual in that it has two separate inputs. Firstly it has a non-inverting, input via high quality solid metal, gold plated RCA sockets that connect to the power amplifier directly. It also has active balanced inputs, via XLR sockets and uses relays to switch between the two inputs. The Destiny Power Amplifier can select either input from a button on the rear panel or using the forthcoming Destiny CAN Link system that extends the controls to another room or proprietary RS232 room controller. Loudspeaker connection can be from bare wire or audio type instrument plugs, through high-grade touch-proof screw terminals on the rear panel that can be switched from the front panel, remote handset or Can Link by gold contact high-current relays. Like the rest of the Destiny range of products, the Power Amplifier can switch into low-current standby operation from the front panel or remote control handset. Waking up the amplifier can now be performed simply via the Creek System Remote handset. For the ecologically aware consumer, the Destiny power amp draws less than 1 Watt of mains current in standby mode. The metal case of the Destiny amplifier has been constructed from custom designed extrusions using solid 10mm thick front panel and 4mm thick extruded side and rear panels that combined with the 3mm thick top and bottom plate to make a very substantial heavy weight product. In addition the buttons and feet are machined by computer aided manufacturing techniques, to achieve a very high quality finish. To isolate mechanical vibration and improve sonic resolution custom designed 4mm thick Sorbothane ‘TM’ moulded washers are stuck to the machined disc feet. All in all, this is the best Power Amplifier Creek have so far made and will definitely compliment the Integrated amp to achieve greater levels of current deliver for difficult loudspeakers that demand high current. They are ideally suited to drive the Epos range of Loudspeakers.

Specifications:

Power in to 8 Ohm (both channel driven): Greater Than 100W
Power in to 4 Ohm (one channel driven): Great Than 250W
Max Current: Greater Than 25amps
THD: Less Than 0.02% 20Hz - 20Khz
Frequency Response: 1Hz - 30Khz - 1dB
Slew Rate: Greater Than 50V per µS
Input Sensitivity: 589mv for 100W
Separation: Greater Than 60dB
Signal to Noise: Greater Than 78dB
Remote: Yes (SRC 2)
Inputs: 1x unbalanced, 1x balanced
Outputs: 4
a/b speaker switch: Yes
Voltage: Switchable, 120V/220V
Consumption: 400W
Weight: 10Kg (about 22lbs)
Size W/H/D: 430 x 70 x 310mm (about 17" x 3" x 12")






A53 POWER AMPLIFIER

Creek A53 Power Amplifier [large view]

only US$ 1,495.00 (In Stock)
free shipping


In response to the demand for biamping from Creek 5350SE owners, Creek has developed a simple solution. The British company took a Classic 5350SE and removed everything that was not associated with the power amp section. The engineers removed the preamp, remote control volume, and input selection circuitry, plus the micro controller. The result is the elegantly simple Classic A53 Power Amp.
This is not a retrograde step, but is instead revealed as a step forward, when you study the specs. The 5350SE-integrated amplifier is already a power amp with passive preamp. In other words, if you were to eliminate the preamp section and drive it from the power amp with a separate preamp through the inputs on the back, the performance would be the same as for the integrated amp. The Classic Power Amplifier is similarly constructed, but obviously without the inputs, switches, knobs and other function controls unique to an integrated amp.

Two Pairs of Speaker Terminals

To accommodate biwiring, the Classic A53 Power Amp is fitted with two pairs of high current speaker binding posts. Although speaker A/B selection is not possible, the amp can drive two sets of 8-ohm speakers in parallel or separately drive different drivers in a single multi-way speaker through separate speaker cables.

Sophisticated and User Friendly

Short circuit, DC offset, and anti-thump protection circuitry makes the Classic Power Amp a sophisticated, user-friendly power amplifier, with a technical performance close to the best.
For the technically minded, the Classic Power Amp uses a high current, N channel only, MOS-FET power output stage, driven by a P channel MOS-FET phase splitter and double differential voltage amplifier with symmetrical 'Class A’ driver, to achieve ultra-low distortion and high speed with minimal negative feedback.
The input sensitivity is the same as the Classic 5350SE Integrated amp, so paralleling the integrated amp and power amp will achieve the same gain, which can be controlled by the common volume control in the Classic 5350SE. If used as a stand-alone power amp, the power amp can be used with a passive or active preamp as required. It will also work very well with the Creek OBH-22 remote controlled Passive Preamp.

The Ultimate as Sonic Performance
The Classic A53 Power Amp uses a 250VA toroidal transformer, together with multiple power supply capacitors totaling 31,000uF, 105 degree C, low impedance, to achieve the quality of computer grade capacitors but with very low inductance, for the ultimate in sonic performance.Like other Creek amplifiers, the Classic A53 is DC servo controlled, to enable direct coupling from input to output and accurate low frequency roll-off, thereby eliminating sonically degrading capacitors from its signal path.

Power delivery (both channels): >90 W in to 8 ohms, >180 W into 4 ohms
Max current: >25 amps

THD (total harmonic distortion): < 0.05% 20 Hz - 20 kHz

Frequency response: 3 Hz - 25 kHz - 1 dB

Power Amp Slew Rate: >50 V per µs

Input Sensitivity: 559 mV for 90 W

Signal to Noise Ratio: >105 dB

Separation: >60 dB

Power Consumption at Idle: <40W

Power Consumption at Full Power: 340W

Dimensions: 17" wide, 2.75" high, 11" deep

Weight: 15.4 lbs.