'WA5 300B Single-ended Triode Class-A Speaker and Headphone Amplifier'
Output Transformer Coupled
(Handcrafted since 2008, the latest Version has available since latest 2015)
- Independent headphone and speaker circuits
- Single-ended Triode, Class A, Output-transformer design
- Point-to-Point wiring
- User selectable High or Low Headphone POWER Output
- User selectable High or Low IMPEDANCE
- User selectable High or Low LEVEL headphone output
- Audiophile-grade ultra premium internal parts :
(V-Cap nput coupling Teflon caps, Jensen decoupling caps and voltage filtering caps, Black Gate bypass (6SN7 cathode) caps)
- One XLR input
- Two WBT Nextgen 0210-Cu RCA inputs
- One WBT Nextgen 0710-Cu Speaker output
- Two 300B [PDF] power tubes
- Two 6SN7 [PDF] drive tubes
- Two 5U4G [PDF] rectifier tubes
- Voltage: AC 110/220V, 50/60 Hz
- External dimension (each): 8½(H), 9"(W), 17"(D)
- Weight: Amp Unit: 35 lbs, Power Supply Unit: 40 lbs
Headphone Amplifier Specifications :
- Headphones impedance : 8—600 Ohms
- Frequency response: 10 Hz—60 kHz, -2dB
- Power output: up to 8 watts via 4-pin XLR and 1/4"
- Signal/Noise: >= 95 dB
- THD: <= 0.08%, 1kHz
Speaker Amplifier Specifications :
- Power output: <= 10w @ 8 Ohms, THD <= 0.3%, 1kHz
- Frequency response: 16—38 kHz, -2dB
- Output impedance: 8 ohms
- Signal/Noise: > 90 dB
Tubes Upgrade (buy separately, please call for pricing) :
- Power tubes upgrade 1, Takatsuki 300B matched pair, made in Japan (2pcs) with 12-month warranty
The Takatsuki TA-300B are new production tubes and is packaged in an exquisite wooden presentation box. It’s performance and quality are verified by us to ensure our customers are getting the best of the best. These tubes rival the NOS Western Electric 300B in sonic performance.
- Power tubes upgrade 2, Sophia Royal Princess 300B matched pair (2pcs) with 12-month warranty
Sophia Electric applied all expertise learned from the past to this new flagship Royal Princess 300B model.
It has the best virtues of both Princess mesh plate and Princess carbon plate 300B tubes and sound light-years ahead of any 300B tubes made in the history including both Sophia Electric Princess Carbon Plate 300B and Princess Mesh plate 300B tubes that won worldwide praises.
The Royal 300B's come in an exquisite wooden box.
- Power tubes upgrade 3, Sophia Princess 300B Mesh Plate black base matched pair (2pcs)
(Comparable to Western Electric 300B)
The result is a 300B mesh plate tube with super clarity, low distortion and out of this world mid range fullness and liquidity. High frequency extension and sweetness is the first thing you would hear.
This is a true 300B tube that is 100% interchangeable with the popular Sophia Electric globe shaped 300B mesh plate tubes and Western Electric 300B tubes, as well as current production Chinese/Russian 300B tubes (with WE 300B standard)
- Driver tubes upgrade, GE 6SN7GT NOS tubes, Hand-pick matched pair (2 pcs) with 30-day warranty
You get a clean and dense sound image with these tubes. It is very low noise, smooth and delicate in the upper frequency range, deep and solid bass, high clarity.
(Woo Audio tested these tubes in an actual amplifier to ensure the highest quality)
- Rectifier tubes upgrade 1, Takatsuki TA-274B matched pair (2 pcs) with 1-year warranty
Takatsuki 274B offer ultimate performance to any current production 274B's. Users have claimed that it exceeds the quality to NOS Western Electric 274B.
- Rectifier tubes upgrade 2, Sophia Princess Mesh Plate 274B (2 pcs) with 30-day warranty
To impact WA5's sound quality or for your super backup.
Sophia Electric™ 274B tube is a premium rectifier tube for a 5U4/5R4/5AR4 direct replacement with 3X longer plate structure, thus it has a deeper, wider sound stage and even smoothier sound than Mullard 5AR4.
Accessories Included :
* AMP and PSU ship in a molded foam within a double-wall box
* Power supply umbilical cord is included.
* 1 pair of 300B, 6SN7, and 274B tubes are included.
* AC Power cord and audio cables are not included.
Available Colors :
- Product Code: WA5
- Availability: Pre-Order