The Canary Audio M608 Integrated Amplifier revives the award-winning CA-608 with modern upgrades. Outputting 40 Watts RMS with four EL34 tubes, a high voltage power supply, and custom hand-made transformers. Featuring a Japanese Alps volume control and multiple single-ended inputs, it offers precise control and connectivity. Handcrafted in California, it combines the best of power amplifiers and preamplifiers for unparalleled musical enjoyment.
A Celebrated American Tube Amplifier Returns. Four EL34 Output Tubes, Custom Transformers and Handcrafted California Engineering.
The Canary Audio M608 Integrated Amplifier represents the return of one of Canary Audio’s most memorable designs. Inspired by the award-winning CA-608 integrated amplifier, the M608 combines the musical appeal of traditional EL34 vacuum tube amplification with an updated ultra-linear circuit, a redesigned high-voltage power supply and premium components.
Handcrafted in California, USA, the M608 brings together the functions of a dedicated preamplifier and a stereo power amplifier within a substantial single-chassis design.
Four EL34 output tubes, two 6SN7 tubes and one 12AX7 form the basis of its carefully engineered valve circuitry, while custom-made American transformers, a Swiss ELMA input selector and a Japanese ALPS volume potentiometer demonstrate Canary Audio’s attention to important components.
The Canary Audio M608 is designed for music enthusiasts who value a dedicated analogue signal path, premium construction and the distinctive presentation of a high-quality valve integrated amplifier.
The Canary Audio M608: A Modern Rebirth of the CA-608
The story of the Canary Audio M608 begins with the original CA-608, the manufacturer’s first integrated amplifier.
Introduced in June 1999, the CA-608 attracted attention among enthusiasts seeking a substantial, carefully built valve amplifier that combined preamplifier and power-amplifier functionality.
The original model remained in production until November 2006. Production eventually ended because several of its original components became unavailable.
However, demand for the CA-608 continued after its discontinuation.
Canary Audio therefore developed the M608 as a modern successor, preserving the central philosophy of the original while incorporating revised circuitry and currently available premium components.
Rather than simply reproducing the old design without changes, Canary Audio created a new EL34-based integrated amplifier informed by the experience gained from its wider range of high-end tube electronics.
Four EL34 Output Tubes
At the heart of the Canary Audio M608 are four EL34 power tubes.
The EL34 is one of the most familiar output valves in the history of high-fidelity and professional tube amplification.
It has been used in a wide variety of amplifiers because it offers designers flexible operating characteristics and can be implemented in several established circuit configurations.
Canary Audio selected the EL34 for the M608’s modified ultra-linear output stage, supported by two 6SN7 valves and one 12AX7.
In a correctly matched system, this topology provides the foundation for the musical character and dynamic performance intended by the manufacturer.
The exact supplied tube brands may vary with production and should be confirmed when ordering.
Ultra-Linear Vacuum Tube Amplification
The M608 employs an ultra-linear output circuit.
Ultra-linear amplification is a recognised approach to operating compatible output valves through specially configured output transformer connections.
It is used in many high-end valve amplifiers as a means of managing output-stage characteristics, including power capability, distortion and electrical behaviour.
The M608 applies this technique to its four-EL34 power stage using a modified circuit derived from the original CA-608 design.
The choice of operating topology reflects Canary Audio’s particular approach to balancing expressive musical reproduction and practical loudspeaker-driving capability.
40 Watts RMS Manufacturer-Rated Output
Canary Audio currently publishes a rated output of 40 watts RMS for the M608.
This gives the amplifier a meaningful power capability for a wide range of appropriately matched loudspeakers.
The manufacturer’s published table does not explicitly define the rating as a separate per-channel measurement, so the figure is reproduced here as specified rather than presented as an independently verified 2 × 40W output.
Some older descriptions of the M608 refer to 38 watts RMS. The current official Canary Audio specification lists 40 watts RMS.
As with every valve amplifier, loudspeaker impedance, sensitivity, room size and listening preferences play important roles in determining system compatibility.
Custom Hand-Wound American Transformers
Transformers are essential components in a traditional vacuum tube amplifier.
The output transformers must provide appropriate impedance matching between the valves and the loudspeakers, while the power transformer supports the electrical supply requirements of the amplifier.
For the M608, Canary Audio specifies custom-made power and output transformers manufactured in the United States.
These are produced according to the manufacturer’s requirements rather than selected as ordinary generic replacements.
The transformer design is an important part of the complete amplifier architecture, influencing the available bandwidth and operating conditions of the valve output stage.
Redesigned High-Voltage Power Supply
The Canary Audio M608 incorporates a newly developed high-voltage power supply.
Valve amplifiers depend on stable electrical operating conditions to allow their various amplification stages to function as intended.
Canary Audio revised the supply architecture as part of the M608’s development, incorporating rectification and choke-based filtering.
This design is intended to support stable operation while managing unwanted supply noise.
The manufacturer’s published power consumption is 265 watts.
Choke-Filtered Rectifier Circuit
A particularly noteworthy feature of the M608 is its rectifier system with choke filtering.
A choke is an inductive component used within power-supply filtering networks.
In an appropriately designed circuit, it can help smooth the rectified supply and reduce unwanted variations before electrical power reaches sensitive amplifier stages.
The implementation of choke filtering is part of Canary Audio’s established approach to power-supply engineering.
Swiss ELMA Input Selector with Gold-Plated Contacts
Source selection is handled by a Swiss-made ELMA rotary switch.
ELMA precision switches have a strong reputation in specialist electronic and audio applications.
For the M608, Canary Audio selected a rotary mechanism with gold-plated contacts.
This is a practical and carefully engineered solution for choosing between connected analogue music sources.
The input selector is one of several premium components contributing to the M608’s traditional high-end construction philosophy.
Japanese ALPS Volume Control
The Canary Audio M608 uses a Japanese ALPS volume potentiometer.
The volume control is an important part of an integrated amplifier because it determines the level of the signal passed to the subsequent amplification stages.
Canary Audio selected the ALPS mechanism for its precision and smooth mechanical operation.
The standard design uses a conventional front-panel volume control.
The manufacturer also lists remote-controlled volume adjustment as an optional feature. Remote operation should not be assumed to be included unless confirmed for the selected version.
Four Gold-Plated RCA Analogue Inputs
The M608 offers four pairs of single-ended RCA line inputs.
These allow compatible analogue sources to be connected directly to the integrated amplifier.
Typical applications include:
CD players with analogue outputs
Standalone digital-to-analogue converters
Network streamers with analogue outputs
External phono preamplifiers
Other compatible line-level audio sources
The inputs use gold-plated RCA connectors.
The M608 is a traditional analogue integrated amplifier. The four RCA inputs should not be mistaken for digital inputs, and the manufacturer does not list an integrated DAC or a built-in MM/MC phono stage.
For vinyl playback, connect a compatible external phono preamplifier between the turntable and one of the M608’s line inputs.
High-Quality Internal Components
The Canary Audio M608 is built using carefully chosen electrical components intended for demanding audio applications.
The manufacturer identifies military-specification printed circuit boards with extra-thick copper traces among its construction features.
These boards provide a substantial platform for the amplifier circuitry.
Selected versions and detailed descriptions also identify MIT PPFXS MultiCap capacitors in key circuit locations.
Capacitor type, operating voltage, tolerance and long-term reliability all matter within the high-voltage environment of a vacuum tube amplifier.
As with other premium audio designs, the value of these parts lies in their appropriate integration into the complete circuit rather than in any one component alone.
Soft-Latching Power Control
The M608 includes an advanced soft-latching power on/off circuit.
A stainless-steel push-button switch operates the system.
This combines the familiar mechanical appeal of a premium front-panel control with the electronic switching arrangement developed by Canary Audio.
The design complements the amplifier’s substantial chassis and understated industrial presentation.
4Ω and 8Ω Loudspeaker Outputs
The Canary Audio M608 provides output connections intended for 4-ohm and 8-ohm loudspeaker loads.
These connections accommodate different nominal speaker impedances through the amplifier’s transformer-coupled output stage.
Correct selection is important when setting up a valve amplifier.
Although nominal impedance provides a useful starting point, speaker impedance often varies considerably across the audible frequency range.
For best results, consider the loudspeaker’s sensitivity, minimum impedance, phase behaviour and intended playback volume.
Chameleon Audio can advise on practical system matching before purchase.
High Input Impedance for Preamplifier Compatibility
The manufacturer specifies an input impedance of 110,000 ohms.
This is a relatively high input impedance for an integrated amplifier and can make it straightforward to connect many compatible analogue sources.
The published input sensitivity is 1.0 volt for full rated output.
When using a DAC, CD player or streamer, proper signal-level matching remains important to prevent clipping or unexpectedly high listening levels.
Extended Frequency Response
The official M608 specification gives a frequency response of 10Hz to 60kHz, ±2dB.
This broad electrical bandwidth reflects the manufacturer’s design objectives for the amplifier circuitry and custom transformers.
It does not mean that every loudspeaker or recording produces acoustic energy over this full range.
Overall system performance will depend on the connected sources, loudspeakers and listening environment.
Traditional High-End Tube Amplifier Design
The Canary Audio M608 appeals to enthusiasts who value dedicated analogue electronics rather than an amplifier filled with unrelated digital features.
Its architecture centres on the essentials of a premium valve integrated amplifier: source selection, level control, signal amplification, output transformers and a carefully engineered power supply.
It brings the functional convenience of an integrated amplifier together with the construction philosophy of Canary Audio’s separate preamplifiers and power amplifiers.
This combination makes the M608 a practical starting point for a serious tube-based stereo system.
Handcrafted in California, USA
Canary Audio states that the M608 is 100% handcrafted in California.
The manufacturer places particular emphasis on US-made custom transformers, carefully selected electrical components and traditional high-end assembly methods.
The M608 continues the company’s history of producing specialist valve electronics for listeners who appreciate dedicated engineering and distinctive American amplifier design.
The Legacy of the Original Canary Audio CA-608
The earlier CA-608 occupies an interesting place in the history of Canary Audio.
Its combination of EL34 amplification, substantial construction and integrated functionality attracted attention from the specialist high-fidelity press.
In particular, the original CA-608 and its later LV version received coverage in hi-fi+, including a review by Roy Gregory.
That historical coverage provides context for the design philosophy that inspired the present M608.
Important: These reviews concern the earlier CA-608 family, not an independently measured review of the current M608.
The M50 uses a different valve complement and is intended for systems with an external preamplifier, while the M608 integrates source selection and volume control into one complete amplifier.
Specifications are based on Canary Audio’s published information and are subject to change. Some older sources state 38W RMS, while the current manufacturer specification lists 40W RMS. Remote-control availability, tube brands, finishes and supplied accessories should be confirmed for the selected configuration.
The Canary Audio M608 is a premium integrated vacuum tube amplifier featuring four EL34 output tubes and an ultra-linear power stage.
Is the M608 related to the original CA-608?
Yes. The M608 is the modern successor to Canary Audio’s first integrated amplifier, the CA-608, originally produced from 1999 to 2006.
How much power does the M608 deliver?
The current manufacturer specification is 40W RMS. Older published descriptions may quote 38W RMS.
How many EL34 tubes are used?
Four EL34 output tubes are used, together with two 6SN7 valves and one 12AX7.
Does the M608 have a built-in preamplifier?
Yes. It is an integrated amplifier with analogue input selection and volume control, combining preamplifier and power-amplifier functionality.
Does the M608 include a phono stage?
The manufacturer’s specification lists four line-level RCA inputs, not a built-in phono preamplifier. An external phono stage is required for most conventional turntables.
Does it have USB or digital inputs?
No digital inputs are specified by Canary Audio for the M608. Connect a suitable external DAC or digital source with analogue outputs.
Can I connect four sources?
Yes. The amplifier provides four pairs of single-ended RCA line inputs.
Does the M608 use ALPS and ELMA components?
Yes. It features a Japanese ALPS volume potentiometer and a Swiss ELMA input selector with gold-plated contacts.
Is remote volume control available?
Canary Audio lists remote-controlled volume as an optional feature. Confirm whether it is included with the selected unit before ordering.
Are the transformers manufactured in the USA?
Yes. The manufacturer states that the power and output transformers are custom hand-made in the United States.
Can the M608 drive 4-ohm speakers?
It provides output connections for nominal 4Ω and 8Ω loudspeakers. System suitability should be assessed using the complete loudspeaker specifications.
Does it need ventilation?
Yes. EL34 output valves and high-voltage amplifier circuitry generate heat. Provide adequate space and ventilation and follow the manufacturer’s placement instructions.
Can I replace the EL34 tubes?
Tube replacement should follow Canary Audio’s recommendations regarding compatible valves, bias adjustment and service procedures. If uncertain, consult a qualified technician.
Where is the M608 manufactured?
Canary Audio states that the amplifier is handcrafted in California, USA.
Has the current M608 been independently reviewed?
Historical hi-fi+ coverage exists for the earlier CA-608 family. That should not be confused with an independent review of the current M608.
Can Chameleon Audio arrange international delivery?
Contact Chameleon Audio for destination-specific availability, delivery costs, packaging and applicable shipping conditions.
Why Choose the Canary Audio M608 Integrated Amplifier?
The Canary Audio M608 Integrated Amplifier combines the legacy of the celebrated CA-608 with an updated EL34 ultra-linear circuit, substantial American-made transformers and a carefully engineered power supply.
Its Swiss ELMA input selector, Japanese ALPS volume control and handcrafted California construction make it particularly interesting to enthusiasts of traditional premium tube amplifiers.
For a well-matched stereo system, the M608 provides the convenience of an integrated amplifier while retaining the distinctive design philosophy of Canary Audio’s dedicated valve electronics.
A Celebrated Design Reborn. EL34 Ultra-Linear Amplification. Handcrafted American High-End Audio.
Availability at Chameleon Audio
The Canary Audio M608 is offered by Chameleon Audio in Greece at a published price of €7,100, subject to availability and selected configuration.
Contact Chameleon Audio for loudspeaker matching, tube and finish options, remote-control availability and international shipping enquiries.
Specifications
Rated Power Output:
40 Watts RMS
Input Sensitivity:
1.0 Volts for full output
Input Impedance:
110,000 Ohms
Frequency Response:
+/- 2dB from 10 Hz to 60,000 Hz
Total Harmonic Distortion:
< 0.4%
Signal-to-Noise Ratio:
-78 dB below 1 Watt
Damping Factor:
12
Power Consumption:
265 Watts (true RMS)
Output Impedance:
4, 8 Ohm
Tube Complement:
4 x EL34
2 x 6SN7
1 x 12AX7
Dimensions:
17.5″ W x 16.5″ D x 6.5″ H
Net Weight:
50 lbs
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