Tube phono-preamplifier
- Improved version of the Phono Box S
- Valve output adds more analogue warmth
- Widely compatible with MM and MC cartridges
S-Line
The Tube Box S from Pro-Ject Audio Systems offers un-rivalled performance, exceptional sonic ability and unique flexibility for a very competitive price.
The dual-mono configuration, audiophile amplifier modules and polypropylene capacitors allow for a dynamic soundstage with ample detail; yet the addition of two ECC83 valves (one per-channel) adds new life and realism to the musical performance. The sturdy casework and external power supply further help to reduce the effects of outside interference, like other models in the S Line, but the Tube Box S also externalises its valves for optimal heat dissipation.
Where the Tube Box S takes another step up in ability is in its various setting adjustments. Using the dip-switches underneath the chassis (there are two sets - one for each channel), it's possible to more accurately match the turntable cartridge's technical characteristics. The dip switches allow for various Gain, Impedance and Capacitance settings. The built-in Sub-Sonic Filter further helps tailor the sound, rolling off any problematic rumble that may appear underneath 20Hz.
The sonic quality of the Tube Box S is extremely impressive and offers a notable improvement over any other S Line phono stage, making it an audiophile upgrade for almost any mid-priced analogue hi-fi system.
Key Features:
- Phono stage with extensive MM & MC compatibility
- Precise RIAA equalisation
- Dual-mono configuration with triode output stage
- Audiophile-grade polypropylene WIMA capacitors
- Switchable Impedance settings
- Switchable Capacitance
- Adjustable Gain
- Sub-Sonic Filter built-in
- Metal casing protects against vibration and interference
Specification
Technical Data
| Valve Complement: | 2x ECC83 (12AX 7A) |
| Input Impedance Settings: | MM: 47kΩ MC: 10Ω, 100Ω, 1KΩ or 2KΩ |
| Capacitance Settings: | 50pF, 150pF, 270pF or 370pF |
| Gain Settings: | 41dB, 51dB or 61dB |
| Noise Floor: | 94dB (A Weighted) (41dB Gain) 75dB (A Weighted) (51dB & 61dB Gain) |
| THD: | MM: <0.01% MC: <0.05% |
| RIAA Accuracy: | 20Hz - 20kHz / max. 0.4dB |
| Subsonic Filter: | -12dB @ 20Hz |
| Input: | 1x Pair RCA / Phono Sockets |
| Line-Level Output: | 1x Pair RCA / Phono Sockets |
| Power Consumption: | 470mA DC |
| Outboard PSU: | 18V / 1,000mA DC (UK Plug) |
| Dimensions: | 103 x 74 x 125mm 103 x 74 x 137mm (Incl. Sockets) |
| Weight: | 810g |
Thank you for considering Yorkshire AV for your next investment in your AV or HiFi setup.
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Returns
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Orders for items not in stock
Given the vast amount of variations of each product (e.g. AudioQuest cables) or Pro-Ject Audio Turntables - we keep the most common options in stock (i.e. gloss black finish, or 1.5m RCA cables) whereas longer cables or cables with terminations that are less frequently ordered will be ordered as required.
Generally speaking - we receive orders within 2-3 days for UK suppliers and 3-4 days for European suppliers (i.e. AudioQuest, DALI).
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