Hagerman Technology Chime Gold User manual

HAGERMAN
T E C H N O L O G Y
Chime Gold
Vacuum Tube USB DAC
Made in USA

Chime Gold Vacuum Tube USB DAC 2
Copyrights & Trademarks
©Copyright Hagerman Technology LLC 2006. All rights reserved. No part of this
document may be photocopied, reproduced, or translated to another language
without the prior written consent.
Disclaimer
The information contained in this document is subject to change without notice.
Hagerman Technology LLC shall not be liable for errors contained herein or for
consequential damages in connection with the furnishing, performance, or use of
this material.
Warranty
Hagerman Technology LLC warrants this product free of defects in materials and
workmanship for a period of 10 years (90 days for tubes). If you discover a
defect, Hagerman Technology LLC will, at its option, repair or replace the product
at no charge to you provided you return it during the warranty period,
transportation charges prepaid to Hagerman Technology LLC. This warranty
does not apply if the product has been damaged by negligence, accident, abuse
or misuse or misapplication, has been damaged because it has been improperly
connected to other equipment or has been modified without the express written
permission of Hagerman Technology LLC. This warranty is limited to the
replacement or repair of this product and not to damage to equipment of other
manufacturers. Any applicable implied warranties, including warranty of
merchantability, are limited in duration to a period of the express warranty as
provided herein beginning with the original date of purchase and no warranties,
whether express or implied shall apply to the product thereafter. Under no
circumstances shall Hagerman Technology LLC be liable for any loss, direct,
indirect, incidental, special, or consequential damage arising out of or in
connection with the use of this product.
Hagerman Technology LLC
PO Box 26437
Honolulu, HI 96825
808-383-2704 (voice)
808-394-6076 (fax)
www.hagtech.com

Chime Gold Vacuum Tube USB DAC 3
Description
The Chime Gold is a world-class analog-to-digital converter employing the latest
technologies married to vacuum tube amplification for a very clean and open
musical reproduction. Input is via USB and optimized for 44.1k Redbook
standard. Data is synchronously upsampled to 24-bits at 312.8kHz and re-timed
using a super low-jitter flywheel type VCXO-based re-clocker circuit. The actual
conversion is done using R2R 24-bit chips (the most expensive you can buy) with
phase linear (perfect transient response) output filter / translators. Vacuum tube
stages then provide the necessary gain and output buffering.
Package Contents
• Chime Gold USB DAC
• Power cord
• USB cable
Specifications
Item Specification
Input USB 1.1
Input Data Rate 44.1k
Bandwidth (analog) 10Hz to 100kHz
Gain (analog) 30dB
Distortion 0.03% @1kHz @1Vrms
Output Impedance 1k ohm
Output Voltage 1.2Vrms full scale
SNR (analog) 92dB A-weighted
Size 16” x 12” x 5”
Weight 10.5 lbs.
Input Power 30W
Input Voltage 115V, 230V
Tube Complement 12AX7, 12AU7, 5Y3 (or GZ34)

Chime Gold Vacuum Tube USB DAC 4
Installation
Connecting to your audio system is very easy. Connect the USB cable to your
PC, the line level outputs (RCA jacks) to your linestage or integrated amplifier.
There are two front panel switches that change operating modes. The PHASE
switch changes signal polarity (up is positive). The FILTER switch selects
between slow rolloff mode (down) and fast rolloff (up). The blue LEDs indicate
status of power supplies and signal lock. If the RX led is off, then there is no valid
44.1k data signal.
Due to the tube rectified high voltage supply, there is a turn-on delay of about 30
seconds. Proper warm-up takes at least 5 minutes. Best results are after one
hour.

Chime Gold Vacuum Tube USB DAC 5
Replacing Tubes
Upgrading the vacuum tubes to quality NOS can have a positive impact on
sonics. The first tube (left side) is a 12AX7 type high-gain tube. You can also
use a 5751. Second tube is a cathode follower output buffer and is a 12AU7
(5814A, 6067). High voltage rectification is provided by a 5Y3GT, but many other
8-pin types will also work (GZ34, 5AR4, etc.). Always unplug power cord before
removing the top cover.
The fuse is located on the circuit board under the transformer wires. It is a 1 amp
“slo-blo” 5x20 type.

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
4 6
L E N
8 2
Blu/Yel Brn/Yel Blu Brn Blk Blk/Red Wht/Blk Wht
100V 110V 120V 200V 220V 240V NC NC NC NC
NC NC NC NC
NC NC NC NC
NC NC
NC NC
NC NC
NC NC
NC NC
NC NC SSS
S
S
S
L
L
L
L
L
L
L
L
L NNNNNN
NNN
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in part. Copyright Hagerman Technology LLC 2004. All rights reserved.
L N S
SLO-BLO yel
blu blu/yel
red/yel red grn/yel
brn/yel
red grn
brn
grn
blk blk/red
yel/blk vio
wht/blk
yel
wht
n/a A
Chime Gold: Power Supply Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
14Wednesday, December 06, 2006
Title Size Document Number Rev Date: Sheet of
C103 47uF 450V
C106 10mF 10V
R100 6k8 1W C101 10nF AC C102 100nF 50V
D101-D104 1N5821
1
2
3
4
F100 1A
R103 220
C100 10nF AC
V100 5Y3
R101 220 R102 220
Q100 PNP Q101
PNP
R104 680 1W
R105 910
R107 330k 1W R108 6k8
T100 370BX
R106 DC D100
HV
H+
B+

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in
IN+ IN-
VS+ VS- PLOCK /INVERT RLOCK RAWL RAWR OUTL OUTR VS+ VS- GND GND GND GND GND GND
GND GND
/STEEP
HAGDAC
14V 13V 11V 8V
GR
BRN
8 7 6 5
1
BLU/Y
2
BRN/Y
3 4
BLU
part. Copyright Hagerman Technology LLC 2005. All rights reserved.
RCV
GND GND
n/a A
Chime Gold: Power & Interface Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
24Wednesday, December 06, 2006
Title Size Document Number Rev Date: Sheet of
+8V
-8V
+8V
-8V
+8V
-8V
+8V
-8V -8V
J402 IN
1 2 3 4
J403 OUT
1 2 3 4 5 6 7 8 9
10 12 11 13 14 15 16 17 18 19 20
C400 4700uF 25V C401 4700uF 25V
R403 910
D400 MBR1100
R405 1R0 D401
MBR1100 D403 MBR1100 D402 MBR1100
R406 1R0
R404 910
R409 10 1W R410 10 1W
C402 4700uF 25V C403 4700uF 25V
U400 LM78M08
IN
1
GND
2
OUT 3
U401 LM79M08
IN
2GND
1
OUT 3
C405 470uF 10V C404 470uF 10V
R412 910 R411 910
S401 PHASE
C414 1uF 50V
D404 LED
T400 MT2112
Q400 PNP
C417 1uF
Q401 PNP
R441 6k8 R442 6k8
R440 680
Q402 PNP Q403
PNP
R443 680
S401 R417
J406
Rxxx 470 Rxxx 470
D405 RX
LEFT RIGHT
S/PDIF

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in part. Copyright Hagerman Technology LLC 2005. All rights reserved.
1,6
2,7
3,8
ONE CHANNEL SHOWN
2.0V
295V 305V
n/a A
Chime Gold: Amplifier Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
34Wednesday, December 06, 2006
Title Size Document Number Rev Date: Sheet of
B+
H+
+6.2V
+6.2V
V400A 12AX7
R427 220
R428 910
V401A 12AU7 C409
1uF 400V R435
330k 1W
R424 3k9 1W
C406 47uF 450V
C407 1uF 400V
R430 220
J405 Out
R434 220
R425 3k9 1W
R423 3R0 5W
R429 150k 1W
R433 220 R432 220 Q402 2SC3942 R431 910
C408 470uF 10V
R436 910
H400 12AX7 H401
12AU7
C412 1uF 50V
C410 10mF 10V
C411 10mF 10V
R437 330k 1W
C400 47uF 450V
C411 1uF 400V
R438 3k9 1W
R439 330k 1W
LEFT

A A
B B
C C
D D
E E
F F
G G
5 5 4 4 3 3 2 2 1 1
This document contains proprietary information and except with written permission of Hagerman Technology LLC such information shall not be published, or disclosed to others, or used for any purpose, and the document shall not be copied in whole or in part. Copyright Hagerman Technology LLC 2005. All rights reserved.
1:1
1 3
4 6
n/a A
Chime Gold: USB Input Hagerman Technology LLC P.O. Box 26437 Honolulu, HI 96825
44Wednesday, December 06, 2006
Title Size Document Number Rev Date: Sheet of
+3.3V
R3 22
R4 22
Y1 12MHz R6
1M
C9 33pF
C8 33pF
R1 1k5
R2 1k5
C10 100uF 6V C1 1uF
C2 1uF
C3 1uF
C4 1uF
C7 1uF
T1
C5 1uF
R5 220
R7 110
U1 PCM2704
GP
19
VBUS
10
D+
9
VD 7
/SPND 27
GR
17
VP 20
VL 13
VR 16
GL
12
GD
6
D-
8
TEST0
26 PSEL
4
VCOM 18
DOUT 5
GZ
11
CK 2
DT 3
HOST 21
TEST1
25
XTO
1
XTI
28
VOR 15
VOL 14
HID0
22
HID1
23
HID2
24
J2 SPDIF
J1 USB
1 2 3 4
L1 Bead
C6 100uF 6V