Allnic Audio H-6500 Riaa / Phonostage

INTRODUCING THE H‐6500 PHONO STAGE

The H‐6500 is Allnic Audio’s mid‐line phono stage model, just under the top of the line H‐7000. 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‐6500 has the following features:
LCR TYPE RIAA EQUALIZATION:
RIAA equalization is a specification for the correct playback of vinyl records, established by the Recording Industry Association of America. The purpose of the equalization is to permit longer
playback times and improve sound quality.
RIAA equalization is a form of establishing a flat frequency response for the playback of recorded music. The necessity for this equalization process arises from mechanical difficulties inherent in
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 frequencies are attenuated. In the treble region, in
order for high frequency sounds not to be masked by the noise inherent in moving a stylus over and through a modulated vinyl surface, some treble frequencies are boosted. With the application of
the correct filtering techniques on playback, the result is a flat frequency response with better signal to noise ratios. There are four de‐emphasis methods that can be applied at playback.

The H-6500 features:

LCR RIAA EQ
Same MC Step-up transformers as standard on H-7000/7000V
Permalloy output transformers
Separate Power Supply
High-speed tube voltage regulation
Analog tube monitor meters
All NOS tubes
Dual MC and MM inputs
One pair RCA outputs

Technical Specifications:
 
Inputs: Moving Coil (MC) x two (2) pairs unbalanced (RCA); Moving Magnet (MM) x two (2) pairs unbalanced (RCA)
Ground: Two (2) x screw type terminals
Outputs: One (1) pair x unbalanced (RCA)
Input Impedance: MC up to 117Ω (see “Impedance” in “Initial Set-Up”) – MM 47kΩ
Frequency (RIAA): 20Hz ~ 20KHz (± 0.3db)
Voltage Gain: +40db (1KHz) MM / +66db (1Khz) MC
Maximum Input Voltage (MM, non-clipping): 20Hz / 30mV; 100Hz / 100mV; 1KHz / 240mV; 10KHz / 280mV
THD (Total Harmonic Distortion): Less than 0.17% (1KHz, Output 1V)
Output Impedance: 430Ω (On – off method)
S/N Ratio: -86db (CCIR, 1KHz)

Tubes:
– 5842 x 8, signal gain (similar to WE 417A).

– 7233 x 2, series voltage regulator (similar to CV4079).

– 5654 x 2, automatic voltage regulator (similar to 6AK5W, CV4010, M8100, 6096, E95F 6096).

– 5AR4 x 1, rectifier – in the power supply (equivalents possible – consult your Allnic dealer).

Power Consumption: 70W – 110/220 / 60Hz
Fuse: AC 2A, 250V slow-blow for 230/240V regions

Dimensions (W x D x H):

– Phono-stage: 430mm x 335mm x 170mm

– Power supply: 170mm x 275mm x 118mm

Weight:
Phono-stage: 8 Kg, Power supply: 8.1 kg