SKU: 67140207688

SPL Pro-Fi Series Phonitor x Headphone Amplifier & Preamplifier with DA Converter and VOLTAiR Technology (Black)

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Description

SPL Pro-Fi Series Phonitor x Headphone Amplifier & Preamplifier with DA Converter and VOLTAiR Technology (Black)The black Pro Fi Series Phonitor x Headphone Amplifier and Preamplifier from SPL offers connections for headphones operated both balanced and unbalanced. It has an advanced built in dual power amp that drives headphones balanced which is twice the power of the standard 1 4" jack. This tightens the bass response and makes the overall playback even more relaxed and transparent. The front houses a 4 pol XLR connector to connect the balanced headphone.

The black Pro-Fi Series Phonitor x Headphone Amplifier and Preamplifier from SPL offers connections for headphones operated both balanced and unbalanced. It has an advanced built-in dual power amp that drives headphones balanced which is twice the power of the standard 1/4" jack. This tightens the bass response and makes the overall playback even more relaxed and transparent. The front houses a 4-pol XLR connector to connect the balanced headphone. Both the standard and the 4-pol headphone outputs can be used simultaneously.

Phonitor x is not just a headphone amplifier but also a full-fledged stereo preamplifier. There is provision for connecting up to five stereo sources - two in the analog domain offering XLR connectors for a balanced source and RCA connectors for an unbalanced source.

When Phonitor x operates as a preamplifier together with the Performer as power amplifier both units can be wire-linked for simultaneous power on/off. Therefore, both units AMP CTL sockets need to be connected with a 3.5mm mono-jack cable. When switching to headphone, listening the performer can automatically be powered down. To engage this feature set DIP switch #6 on the bottom of the Phonitor x to ON. The Phonitor Matrix delivers the most realistic playback on headphones.

The Phonitor x comes equipped with a DA converter. The available inputs are expanded by USB, coaxial, and optical digital stereo inputs. The DA converter supports sample rates up to 192 kHz with 24-bit. It syncs automatically to the sample rate of the selected digital input.

The VOLTAiR 120V Rail Technology is developed and manufactured to run on an operating voltage of 120V, which corresponds to twice that of discrete operational amplifiers and four-times that of semiconductor operational amplifiers. It reproduces finest details and delivers a totally relaxed sounding audio experience. The music sounds natural and hearing fatigue is reduced.

120V rail headphone amplifier and preamplifier
Separate connections and power amplifiers for headphone driven balanced and unbalanced
Suited for all headphones with impedance >10 Ohms
Balanced and unbalanced analog inputs (XLR and RCA)
USB, coaxial, and optical digital inputs
Digital to analog converter with 192 kHz and 24-bit, win driver supplied, Apple Class compliant
With Phonitor matrix speaker-equivalent listening on headphones
Balance control
Mono switch function
Volume remotely adjustable (sold separately)
AMP CTR connection with Performer power amplifier for coupled On/Off switching
Standby/power on switch
Linear power supply with toroidal transformer
Input XLR
Neutrik XLR, balanced, 2-pin = (+)
Impedance: ca. 20 kOhms
CMR: -82 dBu (at 1 kHz)
Maximum Input Level: 32.5 dBu

RCA
RCA, unbalanced
Impedance: ca. 10 kOhms
Maximum Input Level: 32.5 dBu

Digital Inputs
Coaxial SPDIF (RCA)
Optical TOSLINK (F06)
USB (B)
Sample Rates (kHz): 44.1, 48, 88.2, 96, 176.4, 192
Output Balanced Headphone
Neutrik 4-pin XLR connector
Pin wiring: 1= L (+), 2= L (-), 3= R (+), 4= R (-)
Impedance: 0.36 Ohms
Damping Factor: 180 @ 40 Ohms
Frequency Range: 10 Hz to 300 kHz ( -3 dB)
Crosstalk at 1 kHz: -90 dB
THD & N: 0.00091 % (at 0 dBu, 1 kHz, 100 kOhms load)
Noise (A-weighted): -98 dBu
Dynamic Range: 130.5 dB

Unbalanced Headphone
6.35 mm TRS connector
Pin wiring: Tip = Left, Ring = Right, Sleeve = GND
Impedance: 0.18 Ohms
Attenuation Factor: 180 @ 40 Ohms
Frequency Range: 10 Hz to 300 kHz (-3 dB)
Crosstalk at 1 kHz: -90 dB
THD & N: 0.00091% (at 0 dBu, 1 kHz, 100 kOhms load)
Noise (A-weighted): -103 dB
Dynamic Range: 135.5 dB

Speaker/Line Outputs
Neutrik XLR, balanced, 2-pin = (+)
RCA, unbalanced (single-ended)
Frequency Range: 4 Hz to 300 kHz (-3 dB)
Crosstalk at 1 kHz: -106 dB
THD & N: 0.00085 % (at 0 dBu, 1 kHz, 100 kOhms load)
Noise (A-weighted): -103.8 dB
Dynamic Range: 136.3 dB
Maximum Output Power At +30 dBu @ 1 kHz
2 x 1 W at 600 Ohms impedance
2 x 2 W at 300 Ohms impedance
2 x 3.7 W at 120 Ohms impedance
2 x 2.9 W at 47 Ohms impedance
2 x 2.7 W at 32 Ohms impedance
Power Supply Main Voltage (Switchable): 115 VAC / 60 Hz or 230 VAC / 50 Hz
Fuses: 115 V: T 1 A; 230 V: T 500 mA
Power Consumption: Maximum 40 VA
Stand-by Power Consumption: 0.7 W

Internal Operating Voltages
Analog: +/- 60 V
Digital: 5 V and 3.3 V
Dimensions (W x H x D) 11 x 3.9 x 12.9" (28 x 9.9 x 32.8 cm) with feet
Weight 9.5 lb (4.3 kg)
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 67140207688

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4.5 ★★★★★
Based on 7 reviews
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Product Reviews
H
Verified Purchase
Hugh B
Grantham, US
★★★★★ 5
This Timex Ironman lives up to its name
Color: Black/Digital Gray/Black
Timex Ironman watches have been with me for a decade. This particular one I just ordered as a backup for the same one that I have had for seven years (and still works perfectly). I don't know why I ordered a backup except that I love it so much that I couldn't fathom the idea that Timex might discontinue this model. Why do I love it so much? Because it is functional in many ways. Aside from its durability, reliability and the fact that it fits on my wrist so comfortably, it is easy to read and extremely useful for tasks that need countdown alarms as well as regular timers (it has three which you can set). Since I gave up "fashionable" watches years ago in favor of practical, easy to read, multifunctional devises I found this Timex the best of all the other brands that I have tried in this category. Years ago, President Bill Clinton, who jogged regularly, was heavily chastised for wearing a very functional Timex Ironman watch in the Oval Office instead of what the professional politicians considered appropriate for a President. It was then that I realized how important it was for a person to wear a watch that they loved, and that was functional for them. At that point in time I had many other watches that I didn't jettison until later when I realized that I need only wear the watch that I loved and was useful to me. I still have another watch that I saved for "appropriate" times out but have only worn it once. The rest of the time my Timex Ironman stays on my wrist wherever I go.
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Reviewed in the United States on September 13, 2025
R
Verified Purchase
Richard
New York, US
★★★★★ 5
A very comfy, pleasant casual sports watch- especially good for training
Color: Black/Digital Gray/Silver-Tone, Color: Black/Digital Gray/Silver-Tone
The Ironman series of watches has been around for about 40 years now, and with good reason. The current iteration doesn't disappoint. It's light weight, easy-to-read, has a good backlight, offers simple operation, great buttons, a decently loud chime, and is a feature rich watch. I purchased this one on a lark; it was sold as "used- very good" from an Amazon warehouse for $20. The Timex packaging/ box was damaged, but the watch itself was new, wrapped and seemed unused. Since I do not wear an item's packaging, I always look for such items when shopping on Amazon, as it can save quite a bit. In this case it was $12 less expensive, or about 1/3 less costly. I have owned a digital watch for over 40 years; from left to right in the photo- my 1980 Seiko (owned since new), my daily Casio, which has solar and atomic clock radio signal time setting, and the Ironman for you to compare size. Owning a number of Casio digital watches, I was pleasantly surprised by the comfort and ease of use of this Timex Ironman. The Ironman does feel somewhat more "plasticky" that some Casio watches I have, which may influence some buyers. But once you get past that feel, if you like the look of the watch, it's a great offering, especially at a $20 price point. The on the Ironman, a chronograph, a countdown timer, a second time zone, three alarms, 30 lap records, occasion reminders , and a perpetual calendar make it comparable, or better than many of the similarly priced Casio offerings. The Ironman does not feel quite as substantial as some of the lower cost G-Shock offerings I have tried, but is at least as comfy on my 7 1/2 inch wrist. Water resistance seems fine at 100 meters, and the recessed plastic crystal should avoid most scratches. The features should be very useful for those who do not want to wear a smartwatch for training. I hope this review has been helpful.
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Reviewed in the United States on May 6, 2023
J
Verified Purchase
James David Reyome
Belleville, US
★★★★★ 5
Almost the perfect watch
Color: Black/Blue
I have owned three earlier models of these things going back to the days when I actually ran road races. They are brilliant pieces of work. My only complaint of them was that the start/stop/split button(s)--there were two on the older models--were too small. Well, apparently Timex listens and the two small buttons are now combined into one larger one. Probably this was done years ago but I'm only now getting back into road work, so now I get to discover it. The perfect watch? Almost. I especially like this model as my eyes are not what they used to be and the oversized face makes it easier to read. The downside to this is that it also makes the crystal easier to scratch. That's always been an issue, but I can live with it. No, the real problem with this product is, was, and apparently ever shall be, the band. Now, it could be worse, it could be a resin band (like the old ones) that will crack and break within a couple of years, but no, this is a nylon and velcro wrap style which should be just dandy, but for three glitches: 1. it's too short 2. it's too narrow (gee whiz, Timex designers, it's an oversized watch, why not a matching oversized band?) and 3. it's still resin where it attaches to the actual watch. Now, I imagine it's probably less prone to breakage in how it's implemented, but if you should choose to replace it, I can see no obvious way of removing it short of cutting it off. Really? But these are minor complaints. I doubt it would be comfortable on anyone whose wrists are much bigger than my own, but replacement bands are everywhere, and this watch will keep time with style and it's brilliant at splits. Heck, it even functions admirably as a backup for my expensive stopwatches at our regular short track stock car events. For my money (and did I mention the price is wonderful?) the Ironman is still the best at what it does, and for what it can do.
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Reviewed in the United States on November 19, 2014
S
Verified Purchase
striker
Cuba, US
★★★★★ 5
Good hard use watch.
Color: Black/Silver-Tone
Review Calibration: 3 stars means it works as advertised, nothing special during use, and no amazing features. Higher stars mean better-than-expected performance and features. This is 5 stars because it is my favorite work/hard-use watch. I have been wearing one for years, and like all Timex watches, it can take a beating. I have to replace it when the band's ears get so damaged that they won't hold the band on. This has more to do with the plastic's lifespan than with a design issue. I am hard on watches. This watch normally lasts ne 7-10 years between replacements.
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Reviewed in the United States on April 27, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Great watch
Color: Black/Silver-Tone
Great watch, with many features, specially for those that travel in various time zones.
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Reviewed in the United States on May 7, 2026

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