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ALLNIC AUDIO H-3000 PHONO STAGE Thank you for purchasing this Allnic Audio H‐3000 Phono Stage. We are certain your trust in Allnic Audio and Hammertone Audio, 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‐3000 to the other components of your system and the wall outlet.
LCR TYPE RIAA EQUALIZATION: C. Hybrid filters (use of both CR and negative RIAA equalization is a specification for the correct feedback types): playback of vinyl records, established by the Recording Industry Association of America. The In this method, both types of filters applied separately; purpose of the equalization is to permit longer an active filter is applied to the low frequencies and a playback times and improve sound quality. passive filter to the high frequencies. Unfortunately, both the advantages and disadvantages of each of RIAA equalization is a form of establishing a flat these two types of filters, already discussed, affect the frequency response for the playback of recorded playback system at the same time. music. The necessity for this equalization process arises from mechanical difficulties inherent in D. LCR filters, which are used in the H‐3000: record production. In order to prevent the cutting needle from over‐cutting into the next record groove in the bass, as a record is cut, some bass Two pieces of a linear reactor (a kind of choke coil) frequencies are attenuated. In the treble region, in comprise the main part of these filters, assisted by order for high frequency sounds not to be masked precise CR filters, in order to lower impedances and by the noise inherent in moving a stylus over and insertion loss. through a modulated vinyl surface, some treble frequencies are boosted. With the application of In vacuum tube circuits, active and passive filters usually the correct filtering techniques on playback, the are operated on one hundred plus kilo ohms of result is a flat frequency response with better signal impedance. An LCR RIAA filter's impedance is a constant to noise ratios. ...
• construction of phono stage amplifiers. However, One (1) IEC type power cord • Allnic Audio manufactures a high quality LCR RIAA unit One (1) Owner’s Manual and has developed a 600 ohms impedance matching method. Note: • The H‐3000 Phono Stage is all transformer The H‐3000 and its power supply ship with the coupled. tubes installed. • No negative feedback design with only two gain The H‐3000 power supply will work with most IEC stages type aftermarket power cords. Of course, only you • can determine the power cord that works most For superior signal to noise ratios, the H‐3000 is synergistically with the H‐3000 in your system. equipped with pure vacuum tube, high speed, Be sure the H‐3000 power supply unit is labeled automatic voltage regulation for each channel and for the AC voltage of your location. If it is not, a power supply unit separate from the phono please contact Hammertone Audio. stage itself. • High quality MC Step‐up Transformers with We advise that you keep the boxes and other packing Permalloy cores are used for the H‐3000’s dual MC materials that your H‐3000 came in. It will be useful if you inputs. •...
Connectors B. POWER CONNECTIONS You may use any good quality contact cleaner recommended for such applications to clean the contacts The H‐3000 power supply uses a standard three prong from time to time, as you deem appropriate. male IEC connection for AC input. You need to use a power cord with a female three prong IEC connector at one end. INITIAL SET‐UP The H‐3000 power supply connects to the phono stage A. LOCATION, LOCATION, LOCATION itself using the supplied umbilical cable. Connect the units to each other using the umbilical cable with the Like all audio products using tubes, the Allnic Audio H‐3000 appropriate screw‐on connections to the receptacle and its power supply need to be placed on a solid stand in a labeled “DC Source Input” on the rear of the phono stage location that provides good air circulation around both the and the connection terminal labeled “DC Source Output” phono stage and the power supply. on the left side of the rear of the power supply (Please refer to Figures 1 and 2). • DO NOT cover the top of the H‐3000 phono stage or The H‐3000 power supply you have purchased is set the ventilation slots in the top of the power supply internally for AC 110/120 volt – 60 HZ operation. There is chassis. • no way to change this to another AC setting without return ...
The “X#” scale corresponds to the factor that you will select connection for a ground wire from a cartridge and/or for the millivolt output of your selected MC cartridge. Each turntable. position on the X# (factor) scale corresponds to an increase in gain, indicated on the “+#dB scale. You should use When you are facing the front of the H‐3000, the two pairs of identical settings for both transformers to avoid channel MC connections are on the right/centre of the unit, with the imbalance. two MM connections immediately to their left on the other side of the ground connection. NOTE: Please mute your H‐3000, and/or reduce your The H‐3000 has been designed and manufactured to work preamplifier’s volume control, during transformer gain most synergistically with Allnic Audio preamplifiers, pre‐ adjustments. Be aware if you are increasing gain, that you phono stages and equalization products. may hit an uncomfortably loud volume level. D. OUTPUTS F. A NOTE ON PHASE The H‐3000 is equipped with one pair of unbalanced or Phase issues generally will result in lack of bass and/or “single‐ended” (RCA) outputs and one pair of true balanced focus of the stereo image. You may need to reverse (XLR) output connections. The left channel output connections on your cartridge if you are having phase connections are labeled “left output” and are just to the left issues. As is usual in these circumstances, some trial and of the DC Source Input. The right channel output connections ...
• amplifier(s); then turn off your preamplifier and then turn off the pressed the button switch on the left hand side of the H‐3000 last by pressing the on‐off switch on the front panel of front panel of the phono stage, labeled “muting” below the power supply so it returns to the out position. and having button in and out icons for operate and mute, respectively, to the in/down “mute” position (see Figure In the case of any failure, please contact Hammertone Audio for 3) • assistance. pressed the button switch on the right hand side of the front panel of the phono stage to the appropriate phase THE CURRENT METERS position, either “normal” (pressed in) or “inverted” (out position). We suggest starting with “normal”. • These illuminated meters indicate the current supply to the gain rotated the knob labeled “input selector” to the tubes in the H‐3000. They are indicators of failure or damage to appropriate input, corresponding to the input you will the function of the unit. There is one meter for each channel. use initially (See Figure 4), either MC1 or MC2, or MM1 or The needle should be between the two parallel lines just left of MM2 • centre on the meter face. Any failure of the tubes or circuits in if you are using a moving coil cartridge, set the MC one or the other of the H‐3000’s channels is indicated by the transformer controls on the top of the chassis to the needle on the meter for the respective channel moving out from factor that you will try initially • between these two parallel lines. checked that all your connections are snug ...
SPECIFICATIONS FOR THE ALLNIC AUDIO H‐3000 PHONO Output Impedance: 200Ω (Constant) STAGE S/N Ratio: ‐85db (CCIR, 1KHz) Inputs: Moving Coil (MC) × two (2) pairs unbalanced (RCA) Power Consumption: 80W – 110/120 / 60Hz Moving Magnet (MM) x two (2) pairs unbalanced (RCA) Tubes: E810F (or D3a ‐ there are no equivalents to these tubes) × 4 (gain Ground: One (1) x screw type terminal stages, left and right channels) 7233 (no equivalent) × 2 (Voltage Outputs: One (1) pair x unbalanced (RCA) Regulators) One (1) pair x balanced (XLR) 6485 (similar to 6AH6, 6AH6WA, 6AH6S, CV2521) × 2 (Voltage Frequency (RIAA): 20Hz ~ 20KHz (±0.5db) Regulators) 30Hz ~ 15kHz (±0.3dB) Fuse: AC 2A, 250V Voltage Gain: +44db (1KHz) MM +74db (1Khz) MC (with MC Dimensions: transformer switch at X30 ‐ Phono Stage: 430mm (16.9 inches) x 350mm (13.8 position) inches) x 173mm (6.82 inches) (W x D x ...
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Figure 1 – H-3000 Rear Panel View Figure 2 – H-3000 Power Supply Rear Panel View Figure 3 – H-3000 Chassis Top View - MC Transformer Controls...
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Figure 4 – H-3000 Front Panel View Figure 5 - H-3000 Power Supply Front Panel View...
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