JM Sound maintains a diverse inventory of new, demo and used merchandise. Most of the items can be viewed at his Ebay store (jmsoundjoe) and Audiogon (jms).
 
 
Amplifiers
 


Magnus Audio MA-400 Power Amp
$6,295.00 (Demo Unit)





Latest addition to this exceptional line. JM Sound is the exclusive dealer for Magnus. Made in USA. Listing is for a demo unit. Retail $8,000. See Terry London's review in Home Theater Magazine.

MA-400 Highlights:

Advance and sophisticated pure Class AB design with supreme sonic performance.
24 carefully selected and matched MOSFET output transistors of highest quality.
Current mirror input for more stable output throughout entire dynamic range.
Custom wound audio grade toroidal transformer with separate windings for left and right channel.
Custom made heavy-duty heat sinks with special thick rib design ensure a lower operating temperature.
Sophisticated protective circuit ensures highest operational safety for the amplifier and the connected loudspeakers.
Integrated power curcuit with time-delay relay to eliminate turn-on thump.
Advance layout and wiring techniques guarantee a hum free operation.
Switchable balanced (XLR) and single-ended (RCA) inputs.
Full metal housing for optimum shielding.

 
 
 
Canary Audio CA-301AE 300B Tube Amp
$3,495.00





ALL TUBES INCLUDED(EH GOLD)- Note- this model can easily be converted to other voltages
Only 20 units were built, This unit is only 4 months, traded in for the new M90

20 Years Anniversary:
Canary Audio has been offering its extraordinary audio systems to music lovers for 20 years; and to celebrate, we're offering a limited edition collector’s item: The CA-301 Anniversary Edition.

The Legend has Returned:
The legendary CA-301 300B push-pull power amplifier was our very first product and since the day it launched, it soon became a big and was very well received by many audiophiles all around the world. The CA-301 was in production from March 1994 until September 2005. We had to discontinue the CA-301 because many of the original parts and components were out of production and no longer available.

As we celebrate our 20th anniversary, we are bringing back the CA-301 upon requests as a special Anniversary Edition model. Based on the original CA-301 and the MK-II version, the new CA-301 Anniversary Edition features a modified circuitry with the use of updated parts and components. MIT PPFXS MultiCap are used in key circuit locations. New bias checkpoints and bias trim pots are added making biasing the amplifier a lot easier and more precise.
 
 
 
Canary Audio M608 Tube Integrated Amp
$3,395.00 (Demo Unit)





M608 Integrated Amplifier- light demo use.

The Legend Continues:

The award winning CA-608 was our very first integrated amplifier and since the day it launched, it soon became a big hit and was very well received by many audiophiles all around the world. The CA-608 was in production from June 1999 until November 2006. We had to discontinue the CA-608 because many of the original parts and components were out of production and no longer available.

Rebirth of the CA-608:

We've received many requests for the CA-608 from time to time and we finally decided to it back to production. Based on the original CA-608, the M608 uses four EL34 output tubes in a modified circuitry and operates under ultra-linear mode. Like all of our other products, the M608 is built with the highest quality parts and components that we could ever find. The power and output transformers are hand made in the USA according to our specs. Swiss made ELMA rotary switch with gold-plated contacts is used as the input selector. Japanese Alps volume control pot is used for pricise volume adjusting. MIT PPFXS MultiCaps are used in key circuit locations.

The Prefect Combination:

The M608 integrated amplifier is the result for the combination of our extraordinary designs in power amplifiers and preamplifiers. A combination that brings a new level of excitement and musical enjoyment.

Specifications:

Rated Power Output: 38 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 (per monoblock): 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
 
 
 
Magnus Audio MA-260 Class A Power Amp
$4,395.00 (Demo Unit)





Save $1600 on an MA260, pure Class A, balanced & single ended. DEMO UNIT. ALSO AVAILABLE 230V.
Superb craftsmanship and performance in this price range. Retail $5,995.

MA-260 Highlights:

Advance and sophisticated pure Class A design with supreme sonic performance.
10 pairs carefully selected and matched MOSFET output transistors of highest quality.
Custom wound audio grade toroidal transformer with separate windings for left and right channel.
Custom made heavy-duty heat sinks with special thick rib design ensure a lower operating temperature.
Sophisticated protective circuit ensures highest operational safety for the amplifier and the connected loudspeakers.
Integrated power curcuit with time-delay relay to eliminate turn-on thump.
Advance layout and wiring techniques guarantee a hum free operation.
Switchable balanced (XLR) and single-ended (RCA) inputs.
Full metal housing for optimum shielding.

SEE 6MOONS.COM REVIEW NOV, 2015
 
 
 
Ayre Acoustics AX-7e Integrated Amp
$2,195.00





66 step volume control, each of 1.0 dB
Four inputs: two balanced, two single-ended
Eight high-current output devices per channel
Proprietary volume control with FET switches & metal film resistors
Control microprocessor is turned off except when executing a command
Input selector also switches ground connection, so that all source components are completely disconnected except for the one selected
“Theater” mode for use with surround-sound processor is assignable to any input, allowing use with balanced or single-ended processors
Optional metal remote features beautifully finished milled aluminum with five lighted buttons. For the ultimate in luxury and feel when controlling the AX-7.

Specifications:

Power Output: 60 watts per channel continuous into 8 ohms, 120 watts per channel continuous into 4 ohms
Frequency Response: 2Hz - 200 kHz
Input Impedance: 20 Kohm (per phase)
Power Consumption:
20 watts in standby mode
70 watts in operating mode, no signal
Dimensions: 17.25" W x 13.75" D x 4.75" H
Weight: 26 pounds (12 kg)
 
 
 
ATI Audio AT1502 Amplifier
$479.00





Overall good condition, some minor blems, manual

Specifications:

•150W/8 Ohms, 225W/4 Ohms, 450W/8 Ohms bridged
•Damping Factor: >=1,000, 3Hz-50KHz
•300 square inches of heat sinks
•108,000 microfarad capacitors
•Mil spec circuit boards
•13-guage steel chassis; gold-plated terminals.
•Weight: 40 lbs
 
 
 
Linn Majik Integrated Amp
$375.00





33 watts per channel, includes remote, no phono
 
 
 
APL HiFi UA S1 Hybrid Integrated Amp
$2,595.00





Hybrid integrated, designed by Alex Peychev, about 80wpc, unit has some scratches on faceplate and a nick on left side of faceplate.
 
 
 
Canary Audio M90 300B Tube Amp
$3,795.00 (Demo Unit)





The M90 is a stereo power amplifier in push-pull triode configuration with 300B output tubes. It features a newly design circuitry that could provide 24 watts of subtly textured music.

Specifications:

Rated Power Output: 24 Watts RMS
Input Sensitivity: .033 Volts for full output
Input Impedance: 100,000 Ohms
Frequency Response: +/- 2dB from 10 Hz to 60,000 Hz
Total Harmonic Distortion: < 0.5%
Signal-to-Noise Ratio: -84 dB below 1 Watt
Damping Factor: 10
Power Consumption: 220 Watts (true RMS)
Output Impedance: 4, 8 Ohm
Tube Complement: 4 x 300B, 2 x 6SN7, 1 x 12AX7
Dimensions: 17.5" W x 15" D x 9" H
Net Weight: 46 lbs.
 
 
 
AMPSandSOUND Tube Amp
$450.00





Single ended amp, about 4wpc, uses Sylvania 6UL8 tubes, volume control
 
 
 
Jolida JD102B Integrated Amp
$589.00





Type: Stereo integrated tube amplifier
Tube Complement: 2 matched pairs (4) of 6BQ5's power output; 2 pcs. 12AT7 driver and 1 pc. 12AX7A pre-amplifier
Circuit Type: Ultra Linear, Class AB1
Power Output: 20 wpc at 8 ohms (1kHz)
Frequency Response: 14Hz to 80KHz (+3dB; 0dB @ 20 Watt)
Distortion THD + N: Less than 1.5% at 15W output
Input Impedance: < 250Kohms
Input Sensitivity: Maximum 900mV for 20 watt output at 1kHz
Output Impedance: 4 ohms and 8 ohms
Negative Feedback: Less than 7dB
Signal & Noise Ratio S/N: 70dB below rated output from 10Hz to 200khz
Dimensions: 12 x 8 x 5 (WxDxH in inches)
Weight: 18 pounds
 
 
 
Crown K1 Amp
$699.00 (Excellent Shape)





Top-Notch Amplifier Technology! No Fan, No Noise!

The Crown K1 Amplifier is the first amplifier to take advantage of Crown's new Balanced Current Amplifier technology. This technology yields extremely efficient power amplification, with the K1 producing much less heat - even while clipping - than typical amplifiers.

Crown K1 Amplifier at a Glance:

Balanced Current Amplifier technology ensures thermal stability without a fan!
Delivers 350 watts at 8 Ohms, up to 1500 watts (bridged) at 4 Ohms
Incredibly flat frequency response for compromise-free audio

Crown K1 Amplifier Features:

Soft Start (Keeps amp from drawing large currents when first turned on)
Switchable Input Sensitivity (1.4V or 26dB)
Mono mode switches: Bridged, Y (parallel) or both (for daisy chaining)
Balanced XLR and 1/4" inputs
5-way binding posts
Channel 1 and Channel 2 gain controls with notched settings
LEDS: Thermal (Warns of need to dissipate heat), Clip (Warns of distortion in the amp), IOC (Input / Output Comparator: Warns of distortion at 1/30th the level of clipping by comparing the actual waveforms of the input to the output), Signal (glows when output signal is present), Enable (Indicates Power status)
Frequency Response: +/- .25 dB for 20Hz - 20kHz
Power Output (per Channel): 750 watts into 2 Ohms, 550 watts into 4 Ohms, 350 watts into 8 Ohms
Bridged (mono) power: 1500 watts at 4 Ohms, 1100 watts at 8 Ohms
Signal-to Noise (A Weighted): >100dB below rated power
Damping Factor: >3000 from 10 to 400Hz
Input Impedance: Nominally 20KOhms balanced, 10KOhms unbalanced
Passive convection cooling allows amplifier to drive 2 Ohm load at 8db into clip in 104 degree environment!
Power Supply can configure to 100, 120, 200, 220, 230, 240, 250 VAC at 50 or 60 Hz
 
 
 
Davidyee Audio 6BQ5 Tube Amp
$289.00





Davidyee audio 6BQ5 uses (2) 6BQ5 and (2) 12AX7's
Nice sounding 3wpc tube amp with volume control, made in Canada
 
 
 




Last updated July 29, 2016.