Aphex 207D, Instruction Manual, Page: 19 / 30

207d
instruction Manual
Aphex Systems Ltd. Model 207D Page 18
207d
2-ch tube mic preamp with adc
Page 19 Aphex Systems Ltd. Model 207D
OUTPUT
Connector:
Type:
Output Z Balanced:
Output Z Unbalanced:
Nominal Level
Maximum Level:
Output Trim:
6.1 GENERAL SPECIFICATIONS
OPERATING LEVEL
Switch Setting: +4dBu
-10dBV
XLR-3M and TRS 1/4” phone jack
Impedance Balanced (may be used unbalanced)
XLR:66
Ω − TRS:1200 Ω
XLR:33
Ω −
TRS:600
Ω
+4dBu
+21dBu Unloaded
0 to -12dB
Same
Same
Same
Same
-10dBV (-7.8dBu) Unloaded
+6.75dBV Unloaded
0 to -12dB
6.0 Specifications
All specifications are subject to change without notice.
MIC INPUT
Connector:
Type:
Balanced:
Maximum Level:
CMRR:
Nominal Preamp Gain:
XLR-3F
Transformerless, NPN active balanced
2K
Ω nominal
0dBu
Greater than 70dB @ 60Hz
20 to 65dB minus OUTPUT TRIM loss
Same
Same
Same
Same
Same
8 to 53dB minus OUTPUT TRIM loss
INSTRUMENT INPUT
Connector:
Type:
Input Z:
Maximum Level:
Nominal Preamp Gain
:
1/4” Phone Jack
Unbalanced JFET Amplifier
1M
Ω
10VRMS
-infinity to 65dB minus OUTPUT TRIM loss
Same
Same
Same
Same
-infinity to 38dB minus OUTPUT TRIM loss
AUDIO
Frequency Response:
EIN:
Crosstalk:
THD:
Tube Type:
+0,-0.5dB 30Hz-30KHz
-129dBu (Input Shorted)
10Hz - 22kHz, -79dB or better
10Hz - 22kHz @ -11dBfs , <0.18%
12AT7/ECC81 Dual Triode Same
Same
Same
Same
Same
INSERT
Connector Type:
Send:
Return:
Nominal Operating Level:
Point of Insertion:
1/4” TRS Phone Jack
Tip
Ring
-10dBV (316mVRMS)
Between front-end and Tube Output Stage Same
Same
Same
Same
Same
DIGITAL
Output Connector Types:
Word Clock In Connector Type:
Internal Sample Rates:
Digital Resolution:
External Clock Lock Range:
S/PDIF Output Level/Impedance:
Ext Word Clock Level:
AES3: XLR; S/PDIF: RCA Jack
BNC Jack
44.1, 88.2, 48, 96kHz
24-Bits
32 to 96kHz
1Vp-p into a 75 ohm load, 2Vp-p unloaded
<1Vp-p to over 5Vp-p acceptable
Internal, 100-240V~ 50-60Hz, Using IEC Standard Power Receptacle
12 Watts
Internal, not user serviceable
19” W x 1.75” H x 8.25” overall depth (482.6mm W x 445mm H x 209.6mm overall depth);
depth behind front panel: 7.5” (190.5mm)
Rack-mounted, 6lbs (2.73kg)
9lbs (4.1kg)
OTHER SPECS
Power Supply:
Power Consumption:
Fuse:
Dimensions:
Net Weight:
Shipping Weight: