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PH01 - Phono Preamp + Headphone Amp

SKU eq-1195

TTL-designed phono pre-amp + headphone amplifier
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sale Current Price$179.95 Original Price$199.95
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  • Lab Overview
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Lab Overview


  • P+H: phono pre-amp + headphone amplifier in one component
  • switch controls audio output from RCA output to headphone output
  • volume knob works for both phono + headphone outputs
  • works especially well for turntable + powered speaker setups
  • high quality components, full metal casing
  • NEW: added headphone muting relay which eliminates headphone start-up / shutdown pops
  • engineered by JDS Labs, made in the USA
  • read more about the PHO1's development process

"With more turntable users forgoing traditional amplifiers and the growing feature sets of powered speakers, we saw a need for an appropriate link between turntable and powered speaker." - P. Hahn, Turntable Lab

"We built and listened to three RIAA circuits with unique component values. Once tightest EQ response was achieved, we selected Nichicon Muse series coupling capacitors and WIMA film capacitors for equalization circuitry" - J. Hopper, JDS Labs


  • preamp works with MM cartridges
  • gold plated RCA inputs + outputs
  • 1/4" TRS headphone output (adaptor not included), note: headphones with inline control will need special adaptor to work with 1/4" input
  • input impedance: 47K
  • Gain (MM, Line-Output): 35dB
  • Gain (Headphone Output): 35+7=42 dB
  • RIAA EQ Curve Accuracy (20-20kHz): +/- 1 dB
  • Power Supply: 15VAC, 500mA
  • Headphone Amp Gain: 35+7=42 dB
  • Headphone Amp Noise: (Limited by RIAA) -103 dBV
  • Headphone Amp Output-Z: < 1 ohm
  • Headphone Amp Output Power: @ 32 ohms 56 mW
  • Headphone Amp Output Power @ 600 ohms 42 mW
  • 4.4" x 4.3" x 1.2" / 112 x 109 x 30.5mm
  • 0.6 lbs / 9.3 oz
  • view manual


  • US voltage power supply
available in a Turntable Package more info

"I wanted to integrate headphones into my very minimalist audio setup but I had one big problem... The problem is that the speakers have a built in preamp with no audio out so I had nowhere to connect a headphone amp... I know that I could've bought a separate pre-amp and headphone amp but that kind of defeats my minimalist approach and the cool thing about the TTL PH01 is that it's an all in one unit that feels really well built, looks good, sounds great and has a master volume knob that runs both the phones or the speakers, very convenient! And they're made in the USA! Another unexpected plus was that, with this in place, my speakers automatically turn on when I drop the needle on a record! Thank you Turntable Lab for recognizing this problem out there for those of us going directly into powered speakers!" - PH01 User, Tamato

"Not only did this meet my needs, but it surpassed them with a headphone amp AND all in a clean, well built package. Seriously, you knocked this one out of the park. It made listening to my records simple again." - PH01 User, Kyle

UPC: 647336759204, 647336762723

Review & Q+A


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