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audio shop
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Welcome to AMB audio shop. Please use this order form to purchase parts.
A discount will be applied for items totaling over $125, $250 and $500.

Information

  • Certain items are listed as "Reserved" due to supply shortages. AMB's stock of these items are for builders of specific AMB projects that require them, and for the repair of such projects. Maximum order quantities of these items apply. Please read this for details
  • If you need parts that are not normally stocked here, and have difficulty getting them, AMB now offers special order service. Please contact AMB for details.
  • Visit the AMB DIY audio forum for technical discussions and project support.

Items

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Description Price (USD) Quantity Notes
Mini³ headphone amplifier printed circuit board $11.00
each
3 channels onboard 
headphone amplifier printed circuit board $22.00
each
3 channels onboard 
α10 stereo pre-amplifier backplane printed circuit board $45.00
each
Also need σ22, σ25, LCDuino-1, δ1, δ2, α20 and related parts 
α20 line amplifier printed circuit board $18.00
pair
Sold in pairs,
1 channel on each board 
β22 amplifier printed circuit board $14.00
each
1 channel on each board 
ε21 backplane printed circuit board
New!
$30.00
each
Use 1 for 2-ch passive-ground β22 amp
Use 2 for 4-ch balanced β22 amp 

Limited quantities available
σ11 single-rail regulated power supply printed circuit board $12.00
each
PSU for M³ and others 
σ22 dual-rail regulated power supply printed circuit board $14.00
each
PSU for α10, β22, β24 and others 
β24 fully-differential power amplifier printed circuit board $45.00
each
1 balanced channel on each board 
CK²III (Cavalli-Kan Kumisa III) headphone amplifier printed circuit board $14.00
each
2 channels + PSU onboard 
ε24 power switch driver printed circuit board $9.00
each
 
σ24 power transformer printed circuit board $7.00
each
For EI-30 transformers
Optional companion to σ25 and ε24 
σ25 regulated power supply printed circuit board $8.00
each
 
χ1 LiPo battery board for Mini³ $9.00
each
 
δ1 relay-based stereo R-2R attenuator printed circuit board $14.00
each
Part of the LCDuino-1 system
1 board for stereo/unbalanced
2 boards for stereo/balanced 
δ2 relay-based stereo input/output selector printed circuit board $14.00
each
Part of the LCDuino-1 system
1 board for stereo/unbalanced
2 boards for stereo/balanced 
ε12 muting / protect printed circuit board for headphone amps $9.00
each
Now ε12 v2 
ε27 volume pot mounting board for Alps RK27 stereo potentiometer $6.00
each
Also compatible with Noble AP25 stereo pot 
LCDuino-1 display I/O processor printed circuit board $16.00
each
Part of the LCDuino-1 system 
γ1 modular miniature DAC printed circuit board set $13.00
each
Includes 1 USB board and 1 DAC board 
γ2 compact high performance DAC printed circuit board $16.00
each
Requires γ1 PCB set and parts 
dynahi PSU dual-rail regulated power supply printed circuit board $12.00
each
designed by Kevin Gilmore 
Limited quantities available
Mini³ pre-drilled and engraved aluminum panels, front and rear $40.00
set
1 set needed per Mini³ amp
New rear panel markings work with NiMH or LiPo power options 
γ1 pre-drilled and engraved aluminum panels, front and rear $40.00
set
1 set needed for γ1 full config
To be discontinued 

Limited quantities available
γ2 pre-drilled and engraved aluminum panels, front and rear $48.00
set
1 set needed for γ2 with all features 
Aavid-Thermalloy 531102B00000 1.5" extruded TO-220 heatsink (10.4°C/W) $1.50
each
6 needed per M³ board 
Aavid-Thermalloy 529802B00000 1.5" extruded TO-220 heatsink (3.7°C/W) $2.00
each
4 needed per β22 board
4 needed per σ22 board
2 needed per σ11 board 
International Rectifier IRFZ24N / IRF9Z34N power MOSFET complementary pair (TO-220) $3.50
pair
2 pairs needed per β22 board
2 pairs needed per σ22 board
3 pairs needed per M³ board. 
International Rectifier IRLZ24N power MOSFET (TO-220) $3.50
pair
1 pair needed per σ11 board
1 needed per ε24 board 
2N5486 N-channel JFET (TO-92) $1.50
pair
3 pairs needed per M³ board
Not matched for Idss as it is not necessary 
2N5484 N-channel JFET (TO-92) $1.50
pair
1 pair needed per M³ board
Not matched for Idss as it is not necessary 
Toshiba 2SA1015GR PNP small-signal transistor (TO-92) $0.60
each
 
Limited quantities available
Toshiba 2SA1145Y PNP small-signal transistor (TO-92mod) $1.20
each
 
Toshiba 2SC1815GR NPN small-signal transistor (TO-92) $0.60
each
 
Limited quantities available
Toshiba 2SC2705Y NPN small-signal transistor (TO-92mod) $1.20
each
 
Toshiba 2SK170BL N-channel low noise JFET (TO-92) $3.60
each
2 needed per α20 board pair
2 needed per β22 board
4 needed per β24 board
2 needed per CK²III board
See below for Idss matching service 

( Reserved item: Read this before ordering. )
Toshiba 2SJ74BL P-channel low noise JFET (TO-92) $3.60
each
2 needed for per α20 board pair
2 needed per β22 board
4 needed per β24 board
2 needed per CK²III board
See below for Idss matching service 

( Reserved item: Read this before ordering. )
Matching service for two 2SK170BL and two 2SJ74BL (JFETs not included!) $5.00
quad
Idss matched to within 0.5mA
1 quad needed per α20 board pair
1 quad needed per β22 board
2 quads needed per β24 board
1 quad needed per CK²III board 
PN4392 N-channel JFET (TO-92) $1.50
pair
1 pair needed per β22 board
Not matched for Idss as it is not necessary 
Bivar 3BC-3-CA-F bi-color LED, common anode, 3mm $0.34
each
1 needed per χ1 board 
BC546B NPN 65V small signal transistor (TO-92) $0.20
each
6 needed per σ22 board
3 needed per σ11 board
3 needed per ε12 v2 board 
BC556B PNP 65V small signal transistor (TO-92) $0.20
each
6 needed per σ22 board
3 needed per σ11 board
2 needed per ε12 v2 board 
Semitec E-202 2.0mA current regulator diode (DO-35) $2.30
each
2 needed per σ11 board
2 needed per σ22 board 
Semitec E-501 0.5mA current regulator diode (DO-35) $2.30
each
8 needed per β22 board
6 needed per β24 board 
Semitec E-562 5.6mA current regulator diode (DO-35) $2.30
each
1 needed per σ11 board
2 needed per σ22 board 
BC550C NPN 45V small signal transistor (TO-92) $0.20
each
4 needed per α20 board pair
8 needed per β22 board
12 needed per β24 board
10 needed per CK²III board 
BC560C PNP 45V small signal transistor (TO-92) $0.20
each
2 needed per α20 board pair
8 needed per β22 board
12 needed per β24 board
8 needed per CK²III board 
12.000MHz 20pF crystal HC49USX low profile $0.50
each
1 needed per γ1 board 
Texas Instruments TLE2426CLP virtual ground rail splitter chip (TO-92) $1.80
each
1 needed per M³ board
1 needed per Mini³ board 
BZX55C12 12V 500mW low noise zener diode (DO-35) $0.25
each
8 needed per β22 board
8 needed per β24 board
1 needed per σ22 board (certain output voltages)
1 needed per σ11 board (certain output voltages)
1 needed per Mini³ board 
9V battery snaps, PCB-mount (EPD 12BC210-GR & 12BC220-GR or equiv.) $0.75
set
1 needed per Mini³ board
(not needed if also using χ1 board) 
Ferrite bead, axial-lead (Panasonic EXC-ELSA35 or equiv.) $0.30
each
3 needed per Mini³ board
5 needed per γ1 board
5 needed per γ2 board
1 needed per δ1/δ2 stack 
TDK FK20 10µF 16V X7R multilayer ceramic capacitor $0.75
each
2 needed per χ1 board 
Omron G6JU-2P-Y-DC4.5 4.5V DPDT latching miniature relay $4.50
each
up to 8 needed per δ1 board
up to 8 needed per δ2 board 
Wima MKS2 1µF 63V MKS film capacitor $0.90
each
2 needed per α20 board pair
7 needed per β22 board
6 needed per β24 board
4 needed per σ22 board
2 needed per σ11 board
13 needed per M³ board
1 needed per ε12 board
3 needed for γ1 full config
1 more for γ1 USB-to-S/PDIF converter or full++ config
2 needed per γ2 board 
Kemet/Evox-Rifa MMK 3900pF 63V MKT film capacitor $0.20
each
2 needed per σ22 board
1 needed per σ11 board 
JW Miller 79F470K 47µH miniature inductor $0.30
each
1 needed for γ1 full config,
1 more for γ1 USB-to-S/PDIF converter or full++ config 
1KΩx10 resistor network, bussed (SIP-11) (Bourns 4611X-101-102LF or equiv.) $0.45
each
2 needed per δ1 board
2 needed per δ2 board 
47KΩx5 resistor network, bussed (SIP-6) (Bourns 4606X-101-473LF or equiv.) $0.30
each
2 needed for γ1 full config 
47KΩx8 resistor network, bussed (SIP-9) (Bourns 4609X-101-473LF or equiv.) $0.40
each
2 needed per δ1 board
2 needed per δ2 board 
47Ωx8 resistor network, bussed (SIP-9) (Bourns 4609X-101-470LF or equiv.) $0.40
each
2 needed per δ1 board
2 needed per δ2 board 
68Ωx4 resistor network, isolated (SIP-8) (Bourns 4608X-102-680LF or equiv.) $0.30
each
1 needed for γ1 all configs, except USB-to-S/PDIF or USB-to-I²S
2 needed per γ2 board 
DC power jack, 2.5mm center pin, PCB-mount, Kycon KLDX-0202-B or equiv. $0.40
each
1 needed per Mini³ board 
DC power jack, 1.3mm center pin, PCB-mount, CUI PJ-053DH $0.70
each
1 needed per γ1 board 
3.5mm stereo mini phone jack, isolated, PCB-mount, CUI SJ1-3533NG $1.10
each
2 needed per Mini³ board
1 needed per γ1 board
1 needed per γ2 board 
RCA jack, PCB-mount (same as CUI RCJ-041 but with gold-plated contacts) $1.25
each
1 needed for γ1 full config
1 more for γ1 USB-to-S/PDIF converter or full++ config
2 needed per γ2 board 
3P single row pin header, 0.1" pitch, 0.318" mating length, gold (3M 929705 or equiv.) $0.50
each
1 needed per χ1 board 
6P single row pin header, 0.1" pitch, 0.318" mating length, gold (3M 929705 or equiv.) $0.80
each
2 needed per LCDuino-1 board
1 needed per α10 backplane 
9P single row pin header, 0.1" pitch, 0.318" mating length, gold (3M 929705 or equiv.) $1.10
each
1 needed per γ1 board
1 needed per γ2 board 
3P single row pin receptacle, 0.1" pitch, gold (Sullins PPPC or equiv.) $0.50
each
1 needed per γ1 board
1 needed per γ2 board
2 needed per α10 backplane
1 needed per χ1 board 
5P single row pin receptacle, 0.1" pitch, gold (Sullins PPPC or equiv.) $0.65
each
1 needed per γ1 board
1 needed per γ2 board
2 needed per α10 backplane 
6P single row pin receptacle, 0.1" pitch, gold (Sullins PPPC or equiv.) $0.75
each
2 needed per LCDuino-1 board
2 needed per α10 backplane 
Alps RK0971221Z05 miniature stereo potentiometer with SPST switch, 10KΩ $3.25
each
1 needed per Mini³ board
For portable amplifier volume and power 
Alps RK16812MG099 dual potentiometer, 100KΩ motorized $12.00
each
1 needed for LCDuino-1 
Alps RK27112A "blue velvet" premium stereo potentiometer, 50KΩ $16.00
each
1 needed for α20, β22, M³ or CK²III volume control,
1 more for M³ bass boost.
ε27 board recommended for α20, β22 and CK²III 
Analog Devices AD8397ARDZ rail-to-rail high output current dual opamp (SOIC-8 with E-pad) $5.90
each
1 needed per Mini³ board "high performance" 
TI/Burr-Brown OPA690ID wideband high output current opamp (SOIC-8) $3.35
each
1 needed per Mini³ board "high performance" 
National Semiconductor LMH6642MA rail-to-rail low-power opamp (SOIC-8) $1.90
each
1 needed per Mini³ board "extended runtime" 
National Semiconductor LMH6643MA rail-to-rail low-power dual opamp (SOIC-8) $2.30
each
1 needed per Mini³ board "extended runtime" 
Atmel ATMEGA328P-PU microcontroller (DIP-28),
Pre-flashed with bootloader and Volu-Master firmware
$6.00
each
1 needed per LCDuino-1 board 
Microchip MCP73864-I/SL charge management controller (SOIC-16)
New!
$4.50
each
1 needed per χ1 board 
( Reserved item: Read this before ordering. )
NXP PCF8574AP I²C I/O expander (DIP-16)
New!
$2.90
each
2 needed per δ1 board
2 needed per δ2 board 
Toshiba TORX147PL Toslink fiber-optic receiver $2.15
each
1 needed for γ1 full config 
Toshiba TOTX147PL Toslink fiber-optic transmitter $3.50
each
1 needed for γ1 USB-to-S/PDIF converter or full++ config 
Texas Instruments TPS2115APW power multiplexer (TSSOP-8) $2.65
each
1 needed per γ1 board 
Texas Instruments UCC3911DP-3 battery protector (SOIC-16)
New!
$8.00
each
1 needed per χ1 board 
( Reserved item: Read this before ordering. )
Wolfson WM8501GED/V 24b/192K high performance DAC (SOIC-14) $2.50
each
1 needed per γ1 board 

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  • PayPal : Quickest method, ship to your PayPal shipping address after payment confirmation is received.
  • Western Union : Money transfer service available to buyers in many countries.
  • Money order/Certified check : USA only. Payment must be received and clears the bank before shipment.
  • No cash or personal check please.
  • See the AMB audio shop shop policy for complete details.

Shipping



Rush shipment via Priority Mail Express?
No
Yes

Purchase USPS shipping insurance?
No
Yes
  • AMB audio shop ships worldwide.
  • Priority Mail to USA domestic destinations.
  • Priority Mail International to International destinations in most cases.
  • These provide the best combination of reasonable cost and fast shipping time.
  • Priority Mail Express is available for faster shipping time ( USA / international ).
  • AMB may ship via an alternate method at its discretion. If you require a different shipping method than those listed, please contact AMB before committing the order.
  • Shipping insurance is recommended for coverage against damage or loss in transit.
  • See the AMB audio shop shop policy for complete details.

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