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).
 
 
Preamplifiers
 


Canary Audio C630 Tube Preamp
$1,995.00





NEW MODEL- Demo unit, some very light scuffs on top faceplate, barely noticable. This preamp outperforms anything I have heard in its price class.

Specifications:

Input Impedance: 50,000 Ohms min, 95,000 Ohms max
Output Impedance: 1,600 Ohms
Maximum Gain: 9 dB
Frequency Response: +/- 2 dB from 10 Hz to 76,500 Hz
Hum and Noise: -80 dB
Maximum Output Voltage before Clipping: 18 Volts
Total Harmonic Distortion: < 0.08%
Power Consumption: 30 Watts (true RMS)
Tube Complement: 1 x EF86, 1 x 12BH7, 2 x 6922, 1 x 6FQ7
Dimensions: 17.5" W x 13.75" D x 4.5" H
Net Weight: 22 lbs.

 
 
 
Magnus Audio MP1000 Preamp
$2,750.00





SAVE ALMOST 60% on a demo unit- price due to nick on left side of faceplate.

After years of anticipation Magnus has introduced an exceptional preamp to complement its outstanding amplifiers. As most of you know Magnus Audio is built by Canary Audio using the finest parts and construction.

Specifications:

Frequency Response: +/- 0.1 dB from 10 Hz to 50 kHz
Signal-to-Noise Ratio: -103 dB, reference level: full power output
Total Harmonic Distortion (THD): < 0.002%
Gain: 22 dB
Input Impedance: 100k Ohms
Output Impedance: <50k Ohms
Power Consumption: 30 Watts maximum
Inputs: 2 pair balanced via XLR connectors
4 pair single-ended via RCA connectors
Outputs: 1 pair balanced via XLR connectors
1 pair single-ended via RCA connectors
Operating Voltage: 100V, 120V, 220V, 230V or 240V at 50 or 60 Hz (preset prior shipping)
Dimensions: 18.5 in. W x 16 in. D x 4.75 in. H
Weight: 30 lbs.
 
 
 
Canary Audio CA-900 Preamp
$1,795.00





Last one manufactured. Retail $2,600. Free shipping included.

The CA-900 preamplifier features a tube line stage and a tube power supply that will produce a more transparent and musical sound. It has four sets of inputs and two sets of main outputs for flexibility.

Inside the CA-900, you will notice the same craftsmanship as found in our other products such as point-to-point wiring and hand-soldering of parts. Only highest quality parts and components are used in critical applications. The extra thick military grade epoxy circuit boards are designed to minimize component interaction.

The power supply utilizing one 12BH7 and one EF86 vacuum tubes incorporated with a newly design circuit. The oversize power transformer is custom wound and a choke is also used. There is even a metal divider that run the depth of the unit to shield the power supply from the line stage.

The tube line stage utilizing two 6922 and one 6CG7 vacuum tubes. Circuit highlights include the use of four pieces custom made capacitors. A Swiss made ELMA rotary switch is used as a selector for input sources and a high quality Alps volume control is used for precise volume adjustment.

Specifications:

Input Impedance: 50,000 Ohms min, 95,000 Ohms max
Output Impedance: 1,600 Ohms
Maximum Gain: 9 dB
Frequency Response: +/- 3 dB from 10 Hz to 76,500 Hz
Hum and Noise: 80 dB
Maximum Output Voltage before clipping: 18 Volts
Total Harmonic Distortion: < 0.08%
Power Consumption: 30 Watts (true RMS)
Tube Complement: 6922 x 2, 6CG7 x 1, EF86 x 1, 12BH7 x 1
Dimensions: 19" W x 14" D x 4.5" H
Weight: 35 lbs.
 
 
 
Canary Audio CA-908 Tube Preamp
$1,695.00





The CA-980 preamplifier features a tube line stage and a tube power supply that will produce a more transparent and musical sound. It has four sets of inputs and two sets of main outputs for flexibility.

Inside the CA-980, you will notice the same craftsmanship as found in our other products such as point-to-point wiring and hand-soldering of parts. Only highest quality parts and components are used in critical applications. The extra thick military grade epoxy circuit boards are designed to minimize component interaction.

The power supply utilizing three selected vacuum tube (1 x 5Y3, 1 x 12BH7 and 1 x EF86) incorporated with a newly design circuit. The oversize power transformer is custom wound and a choke is also used. There is even a metal divider that run the depth of the unit to shield the power supply from the line stage.

The tube line stage utilizing two 12AX7 and one 12AU7 vacuum tubes. Circuit highlights include the use of a total of ten pieces Hovland MusiCaps®. A Swiss made ELMA rotary switch is used as a selector for input sources and two hand built ELMA 24 stepped attenuators are used for precise volume adjustment.
 
 
 
Canary Audio PA100 Passive Preamp
$439.00



NEW PRODUCT
P100 Features and Specifications:
Thick steel chassis with black powder coating.
CNC machined aluminum faceplate with solid aluminum knobs.
Four pairs of input and one pair of output with gold plated RCA jacks.
High quality Alps potentiometer is used for precise volume adjustment.
Totally passive design, NO power, NO electronics and NO distortion.
100% Handcrafted in California.
Dimensions: 9" W x 7.5" D x 3.75" H
Weight: 5.5 lbs.
 
 
 
Theta Digital Casanova Preamplifier
$589.00





Includes remote, factory box, retail about $4,000

* 24 bit 96kHz D to A converters
* Six stereo pair of analog inputs, 20 bit 48kHz A/D converter
* Two pair of buffered analog tape outputs
* Six coaxial, and two TosLink SPDIF digital inputs
* Two coaxial SPDIF digital outputs
* Dolby Pro Logic, Theta's special matrix and matrix modes and stereo
* Full crossover capability for five main channels and woofer channel
* Six frequency settings (40, 50, 60, 80, 100, 120 Hz), and four slope settings(6, 12, 18, 24dB/octave) for each; L/R surrounds and center
* Center and surrounds also have phantom setting for simulating such speakers
* Separate delay settings for matrix modes and true 5.1 modes.
* Zone 2, with volume control
* Conversion: A/D Conversion: 20-bit Delta-Sigma; D/A Conversion: 96kHz, 24 bit.
* Frequency Response: 20 Hz-20 kHz, -0.2dB, Ref. 1kHz
* THD+Noise: Less than 0.002% @ 1kHz, max. output.
* Dynamic Range: 120dB min., 20kHz bandwidth, Ref. 1kHz
* Signal to Noise Ratio: 120dB minimum, 20kHz bandwidth, Ref. 1kHz at maximumoutput level.Inputs
* Analog Audio: 6 stereo pairs (RCA) Minimum Input Level: 50 mVrms, Input
* Impedance: 10 K ohms.
* Digital In Card: 12: 6 coaxial (RCA), 1 AES/EBU (Balanced XLR); 3 optical (2TosLink; 1 open for optional AT&T or Theta Digital proprietary Single Mode); 2optional AC-3 RF.
* (Audio) Balanced/Single-Ended Card: Analog Outputs: 6 channels: Left, Right,Center, Left Surround, Right Surround, Sub (Front Left, Right and Center balancedXLR) and single ended [RCA] outputs for each. Left Surround, Right Surround and Sub have single ended outputs only.
* Analog Output Impedance: 36.5 ohms on SE output, 70 Ohms on balanced output.
* Maximum Analog Output Level: Balanced: 20 Vrms, Single Ended: 10 Vrms
* 1 stereo (RCA) analog pair (Tape Out) on Analog In card.* 1 stereo (RCA) analog pair (Zone 2) on Analog In card.
* 2 coaxial (RCA) digital Tape Outputs on Digital In card.
* Dimensions: 19" W x 14.5" D x 4.5" H
* Remote Control: 1 hand-held; uses 2 AAA batteries
 
 
 
Perreaux SA2 Vintage Preamp
$329.00





Made in new Zealand, includes MM & MC phono stages
 
 
 
Audio Experience Concerto Plus Phono Preamp
$499.00





MM only phono stage. Based on ECC83 tubes and 6X4 rectifier.

Specifications:

Controls: EQ network Selector , Power On/Of
Output: High x1 , Low x1
Input: RCA x 1
Frequency Response: +/- 0.5dB from 50Hz to 20kHz, RIAA equalized
Input Impedance: 47k ohm
Gain: 47dB at high output, 43dB at low output
Noise: 79dB (shorted input)
Signal-to-noise ratio: below 2 Volts RMS output, A weighted
Distortion: Less than 0.07% at 0.5V RMS 1kHz output
Maximum input: 50mv
Tube Compliment: 12AX7 x 3, 6X4 x 1
Dimensions: 400mm x 310mm x 80mm (W x D x H)
 
 
 
JLTi Rev3 Phono Stage
$995.00







Includes separate power supply, bullet plugs and manual.
Rating due to rough edges on top of faceplate
Retail $2,750
 
 
 
Canary Audio C700 Tube Preamp
$2,495.00 (Demo Unit)





The C700 stereo preamplifier employs an advanced circuitry and high quality components to provide outstanding musical reproduction of your favorite music. Like our other products, the C700 is engineered and built to provide a lifetime of musical enjoyment.The circuitry components used in the C700 are carefully chosen and hand soldered on the military grade epoxy circuit boards.

C700 Special Features:

Rectifier with choke filtering.
Custom EI power transformer.
Five pair of RCA single-ended inputs and two pairs of RCA single-ended outputs.
120-step discrete relay attenuator for volume control with muting function.
LED input selection indicators.
All aluminum full function remote control.


Specifications:

Input Impedance: 70,000 Ohms min, 100,000 Ohms max
Output Impedance: 1,400 Ohms
Maximum Gain: 16 dB
Frequency Response: +/- 1 dB from 10 Hz to 55,000 Hz
Hum and Noise: -90 dB
Maximum Output Voltage before Clipping: 20 Volts
Total Harmonic Distortion: < 0.04%
Power Consumption: 40 Watts (true RMS)
Tube Complement: 1 x 5AR4, 1 x 6V6, 2 x 12AU7, 3 x 12AX7
Dimensions: 19" W x 16" D x 5.5" H
Net Weight: 34 lbs.
 
 
 




Last updated July 29, 2016.