ALLNIC AUDIO H-5500 User manual

ALLNIC AUDIO
H-5500 PHONO-STAGE PREAMPLIFIER
OWNER’S MANUAL

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ALLNIC AUDIO
H-5500 PHONO–STAGE PREAMPLIFIER
Thank you for purchasing this Allnic Audio H-5500 Phono-Stage
Preamplifier. We are certain your trust in Allnic Audio and its dealers
worldwide, as well as your appreciation for the sound of this high-quality
device, will be rewarded by its excellent operation for years to come.
Please read this entire manual before you connect the H-5500 to the other
components of your system and the wall outlet.
** Information and specifications for the Allnic Audio product
described in this manual are subject to change without notice.
*** For a list of Allnic Audio distributers around the world, please visit
Allnic Audio’s website:
http://allnicaudio.com

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TABLE OF CONTENTS:
INTRODUCING THE H-5500 PHONO-STAGE PREAMPLIFIER
4
WHAT’S IN THE BOX?
4
SAFETY
4
CLEANING
Chassis
Connectors
5
INITIAL SET-UP
Location, Location, Location
Power Connection
Inputs
Outputs
Moving Coil (MC) Transformer Controls
5
INITIAL POWER ON
6
OPERATION
7
CURRENT METER
7
SPECIFICATIONS
7
WARRANTY
9
FIGURES
9
Please read about SAFETY before you attempt to use the H-5500 Phono-
Stage Preamplifier - we care about our customers and the equipment,
and we want you to enjoy this product for a long time!

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INTRODUCING THE H-5500 PHONO-STAGE PREAMPLIFIER
The H-5500 is the successor to Allnic Audio’s H-1202 phono stage preamplifier and sits just below the H-7000
model. Like all Allnic Audio products, it uses Permalloy (iron and nickel alloy) for its transformer cores. Allnic is
grateful to Mr. G.W. Elmen of Western Electric for inventing Permalloy for transformer core use, and in so
doing, providing an enormous service to recorded music listeners everywhere.
The H-5500 has the following features:
• High-quality, NOS E180CC twin triode tubes
• CR type RIAA equalization, precisely compensated within +/- 0.3dB
• Automatic, all tube voltage regulation circuit, ensuring exceptionally stable and quiet operation
• High quality Moving Coil Step-up Transformers with Permalloy cores
• MC transformers variable gain (+22dB, +26dB, +28dB and +32dB)
• No negative feedback design
• Pure Class A operation
• As are all Allnic Audio products, the H-5500 is fully RoHS (EU Reduction of Hazardous Substances
regulation) compliant in construction and materials
WHAT’S IN THE BOX?
Please check that the shipping box contains the following:
• One (1) Allnic H-5500 phono stage – in natural aluminum or black, depending on your order request
• One (1) IEC type power cord
• One (1) Owner’s Manual
Note:
1) The H-5500 ships with the tubes installed.
2) The H-5500 will work with most IEC type aftermarket power cords. Allnic’s ZL-3000 and ZL-5000 power
cords will provide excellent results. Of course, only you can determine the power cord that works most
synergistically with the H-5500 in your system.
3) Be sure the H-5500 is labeled for the AC voltage of your location. If it is not, DO NOT connect the H-
5500 to your AC mains. Contact your authorized Allnic representative (See Figure 1).
We advise that you keep the box and other packing materials that your H-5500 came in. It will be useful if you
sell your H-5500 or in the unlikely event you need to ship it for service.
SAFETY
• Remove ALL protective cushioning material inside the tube chimneys before operation. The tube
chimneys should contain NOTHING except the tubes. You may experiment with the tube damping
rings, on or off.
• Disconnect the power cord by pulling the plug, not the cable.
• Do not attempt any repairs. Do not remove the unit’s chassis covers without specific authorization
from an authorized Allnic Audio representative.
• Keep the power cord away from heat sources.

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• Keep the unit away from liquids – do not allow any liquid to touch the tubes or enter the interior of
the unit.
• When the unit is moved from a cold to a warm environment, allow sufficient time for any condensation to
evaporate before plugging the H-5500 into an AC connection.
• See the notes on “Location, Location, Location”.
CLEANING
A. Chassis
Use only a soft, lint-free cloth dampened slightly with water only (NO cleaning fluids!) to clean the faceplate and
chassis of the H-5500 and its power supply.
B. Connectors
You may use any good quality contact cleaner recommended for such applications to clean the contacts from
time to time, as you deem appropriate.
INITIAL SET-UP
A. LOCATION, LOCATION, LOCATION
Like all audio products using tubes, the Allnic Audio H-5500 needs to be placed on a solid stand in a location that
provides good air circulation around the phono-stage.
• DO NOT cover the top of the H-5500 phono stage or tube chimneys.
• DO NOT place the unit on carpet or foam.
• DO NOT subject the unit to knocks and shocks as you move it around. This advice is meant particularly for
those who may want to place the H-5500 on some kind of after-market isolation feet or similar devices.
Dropping the H-5500 is not a good thing to do and may void the warranty.
• DO NOT place the unit near a strong light or heat.
• DO NOT place anything heavy on the unit.
• DO NOT allow rubber or vinyl materials to have contact with the unit’s chassis for long periods of time. This
could discolour the metal.
• DO place the unit on a shelf or stand that is stable and not subject to vibration or sudden shock.
• DO consider using a high-quality power cord and inter-connects, for both inputs and outputs. The H-5500 is
a highly sensitive piece of electronic designed for neutrality and will output what you put into it. Allnic’s Zero
Loss (ZL) Technology cables will work synergistically with the H-5500.
• DO try to place the H-5500 away from major sources of RFI and EMI; though well shielded, the H-5500 will
function best away from large power transformers and other sources of such interference.
B. POWER CONNECTIONS
The H-5500 uses a standard three prong male IEC connection for AC input. You need to use a power cord with a
female three prong IEC connector at one end (See Figure 1).
The H-5500 is set internally for AC 110/120 volt – 60 HZ, or 220/230 – 50 HZ operation. There is no way to change
this to another AC setting without return of the unit to the factory for re-wiring, at the owner’s cost, including
transport both directions.

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C. INPUTS
There are four (4) pairs of single-ended (RCA) inputs, two for Moving Coil (MC) cartridges and two for Moving
Magnet (MM) cartridges. These four pairs are located in the middle of the rear of the H-5500 with the ground screw
between the two MC pairs and the two MM pairs (See Figure 1). The input pairs are labeled MC 1 and 2 and MM 1
and 2, with the number of each pair on the vertical axis between the top (left channel) and bottom (right channel)
RCA input connectors. Facing the rear of the H-5500, the two left-hand pairs of inputs are the MC cartridge inputs,
with pair 1 closest to the centre ground screw. The two right-hand pairs of inputs are the MM inputs, with pair 2
closest to the centre ground screw and pair 1 next to the IEC connection.
When you are facing the front of the H-5500, the input connections are in the centre of the unit, with the MC
connections on the right and the MM connections to the left, next to the IEC connection.
The H-5500 has been designed and manufactured to work most synergistically with Allnic Audio products, including
line-stage preamplifiers, pre-phono stages and ZL Technology cable products.
D. OUTPUTS
The H-5500 is equipped with one set of single-ended or “unbalanced” (RCA) outputs. Facing the rear of the H-5500,
the right channel RCA output connection is just to the left of the MC RCA input pairs (when facing the front of the H-
5500, to their right). Facing the rear of the H-5500, the left channel RCA output connection is just to the right of the
MC RCA input pairs (when facing the front of the H-5500, to their left (See Figure 1).
E. MOVING COIL (MC) TRANSFORMER CONTROLS
Facing the front of the H-5500, the MC step up transformers are on the H-5500 deck immediately behind the four
E180CC tubes. The right channel transformer is on the right, closest to the outside edge of the chassis (See Figure
4). On top of each transformer cylinder, there is a rotating control (See Figure 3). Turn the control knob to select
from four gain factors: +22dB, +26dB, +28dB and +32dB. Combined with the H-5500's 40dB native gain, for MC
there is 62dB, 66dB, 68dB and 72dB of gain available. Each of the second set of indicators on the top of the
transformers marks the impedance tied to the gain setting diagonal to it. The impedance at each of ×13, ×20, ×26
and ×40 on the control knob is equivalent to 278Ω, 117Ω, 69Ω, and 29Ω and respectively. The impedance and gain
relationships are not user adjustable. You should experiment with the gain settings to find the best setting for your
cartridge. Use identical settings for both transformers to avoid channel imbalance.
INITIAL POWER-ON
Once you have your H-5500 in place and all connections have been made to your turntable and preamplifier, you are
ready to turn on the power for your H-5500. Before you power up the H-5500, be sure you have:
•
removed ALL the cushion materials from inside the tube chimneys
•
turned the volume down or muted your preamplifier
•
muted the H-5500 by ensuring that the button switch labeled “mute” on the right-hand side of the front panel
of the H-5500 is in the “out” position (i.e., it is not “depressed”) (See Figure 2)

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•
rotated the single knob labelled ‘Selector” on the right front of the unit to the appropriate input, corresponding
to the input you will use initially, either MC 1 or 2 or MM 1 or 2. The MC 1 and 2 and MM 1 and 2 input labels
are at 10 o’clock, eleven o’clock, 1 o’clock, and 2 o’clock, respectively (See Figure 2).
•
if you are using a moving coil cartridge, set the MC transformer controls on the top of the chassis to the factor
that you will try initially (See Figure 3).
•
checked that all your connections are snug.
To turn on the H-5500, press in the button switch labelled “power” just to the right of the current meter on the left
of the front panel. Pressing the power button again will power down the H-5500 (See Figure 2).
OPERATION
The H-5500 has a “soft start”. After pushing in the power button, the H-5500 will take about 40 seconds to be ready
for play. Each time the H-5500 is powered on, the current meter and the light in the middle of the front panel will
both illuminate. The light will be red. It will change to orange at the same time that the needle of the current meter
moves up to between the two parallel lines at its top. Note: if the mute button is in the “mute” position (button
“out”) when you power on the H-5500, the light will illuminate red and stay red until the mute button is pressed
“in”, unmuting the H-5500 and causing the light to change from red to orange.
CURRENT METER
The current meter indicates correct operation of the H-5500. If the meter falls to the right outside the two parallel
lines that it should sit between, a failure of the voltage regulator or voltage corrector tube (or both) is indicated. If
the needle falls to the left outside the parallel lines, a failure of one or more of the E180CC tubes is indicated. Such a
failure will likely be accompanied by a loss of output in one or both channels.
To restore correct operation, change the tube(s) that have failed, using the same or equivalent tube (only as
specified in this Manual). No biasing is required.
SPECIFICATIONS FOR THE ALLNIC AUDIO H-5500 PHONO-STAGE PREAMPLIFIER
Inputs: Two (2) pairs Moving Coil (MC) unbalanced (RCA)
Two (2) pairs Moving Magnet (MM) unbalanced (RCA)
Output: One (1) pair unbalanced (RCA)
Ground: One (1) x screw type terminal
Frequency (RIAA): 20Hz ~ 20KHz (±0.3db)
Voltage Gain: MM: +38db (1KHz)
MC: Variable: +22dB, +26dB, +28dB, +32dB (1Khz)
Input Impedance: MC up to 278Ω
MM 47kΩ

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Maximum Input Voltage
(MM, non-clipping): 20Hz / 30mV
100Hz / 60mV
1KHz / 300mV
10KHz / 500mV
THD
(Total Harmonic
Distortion): Less than 0.3% (1KHz, Output 1V)
Output Impedance: 1.2KΩ (on-off method)
S/N Ratio: -68db (CCIR, 1KHz)
Power Consumption: 20W / 220V @ 60Hz
Tubes: E180CC - New old stock -
approximately electrically (not sonically) equivalent: CV8431, 7062,
5965, 12AV7, 6414, 6829;
7233 - New old stock (no equivalent) - voltage regulator;
5654 - New old stock (equivalent to 6AK6, A4361, CV1762) - voltage corrector.
Fuse: AC 3A, 250V, slow blow (for 120V; 2A for 230V)
Dimensions: 430mm (~17 inches) x 260mm (~10.25 inches) x 170mm (~6.7 inches)
(W x D x H)
Weight:
Unpacked: 8.2 Kg (18 lbs)
Packaged: 11 Kg (24 lbs)

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WARRANTY
FOR WARRANTY SERVICE, PLEASE CONTACT YOUR ALLNIC AUTHORIZED DEALER.
All Allnic Audio amplifier products are warranted against materials and manufacturing defects for parts, excluding
tubes, and labour for two (2) years from date of purchase. Tubes are warranted against materials and manufacturing
defects for one (1) year from date of purchase. The warranty is transferable for the balance of the original purchaser’s
warranty period, provided, as stated below, no unauthorized repairs or modifications have been performed on the
product. Date of purchase is the date indicated on the invoice for the product issued by Allnic Audio or its authorized
representative. For the warranty to be valid, a defective product must be returned to Allnic Audio’s authorized
representative for service prior to any unauthorized attempt to repair. Any repair work on an Allnic Audio product not
specifically authorized by Allnic Audio or its authorized representative will void the warranty on the product.
FIGURES
Figure 1 – H-5500 Rear Panel View

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Figure 2 – H-5500 Front Panel View
Figure 3 – H-5500 Chassis Top View - MC Transformer Controls

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Figure 4 – H-5500 Top View