Heed Audio THESIS User manual

Heed Audio Kft. (Ltd.)
Reviczky Gyula u. 9-11
H-1181 Budapest
Hungary
Tel.: [phone]
[email protected]
www.heedaudio.com
MM
input:
input impedance:
gain:
noise floor:
outputs:
MC
noise floor:
power supply:
power consumption:
weight:
dimensions:
input:
selectable input impedance:
selectable gain:
outputs:
SECTION
1 pair RCA input for MM cartridges
47 k / 150 pF
33 dB (low out), 48 dB (high out)
-84 dBV
1 pair RCA 50 , high level
1 pair RCA 600 , low level
SECTION
1 pair RCA input for MC cartridges
100 / 220 / 470 / 1000 Ω
44 / 50 / 56 dB (low out)
62 / 68 / 74 dB (high out)
-90 dBV
Thesis , or Thesis
max 60VA 350 VA
7 kg
22 x 8.5 x 32.5 cm (W x H x D)
Ω
Ω
Ω
Ω
Ω
π λ
λ π
λ
1 pair RCA 50 , high level
1 pair RCA 600 , low level
( ), max ( , γand ω)
( )

INPUTS:
- MC: input for moving coil phono cartridges
- MM: input for moving magnet phono cartridges
OUTPUTS:
- Low Out: 600 , low level output
- High Out: 50 , high level output
Ω
Ω
PSU CONNECTOR:
To use the Thesis , connect the PSU cable supplied with the .
To use the internal PSU of the , a separate special
cable is needed (not supplied, available on
request).
GND:
Two different earthing points are available. The chassis ground,
or the signal ground can be choosen, whichever
gives the best noise results in the actual system.
CONNECTIONS:
It is best to do any cable connection when the amplifiers are
switched off.
PLACEMENT:
For best noise results, place your turntable and the Thesis far
from devices with larger transformers or other
devices that may cause electromagnetic
interference (power amps, wifi routers, etc.)
π
λ
φ
π
MC GAIN SETTINGS:
Adjust the gain settings according to the manual of your phono
cartridge. With jumpers in the dB sections you can
select the desired gain range. If in doubt, choose
whichever is offering the most comfortable volume
levels on your preamp / integrated amp.
MC LOAD SETTINGS:
Adjust the load impedance settings according to the manual of your
phono cartridge. If no exact match is available, choose
the nearest option.
OUTPUT CONNECTIONS:
The High Out has +18 dB extra gain over the Low Out. Choose
whichever matches best with your preamp / power amp.
The outputs can be used simultaneously, as long as the
input impedances of the following devices are
reasonably high (10+ k ).Ω