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The Synthesis Roma 98DC is a high-power mono tube power amplifier delivering about 80 watts RMS into 6 ohms. Built with a pair of KT88 power tubes in ultra-linear configuration, it offers balanced line input, excellent build quality, and hand-made output transformers along with a classic VU meter on the front panel.
To ensure you receive the product you want without any delays, some items on our website now require a quick confirmation before purchase.
Here are your options:
While most products are available within the country, some may need to be imported. To provide you with accurate pricing and estimated delivery times, we need to confirm the product’s availability and details first.
We appreciate your patience and look forward to assisting you!
PRICE ON REQUEST
Confirm Availability Before Purchase
To ensure you receive the product you want without any delays, some items on our website now require a quick confirmation before purchase.
Here are your options:
While most products are available within the country, some may need to be imported. To provide you with accurate pricing and estimated delivery times, we need to confirm the product’s availability and details first.
We appreciate your patience and look forward to assisting you!
Have any Questions?
Feel free to Get in touch


| Specification | Value |
|---|---|
| Power Output | 80 W RMS (mono, into 6 Ω) |
| Output Tubes | 2 Ă— KT88 (per channel) |
| Driver Tube | 1 Ă— 6CG7 |
| Input Tube | 1 Ă— 12AY7 |
| Circuit Type | Push-pull, ultra-linear mode (43% tap) |
| Inputs | 1 Ă— Balanced (XLR), 2 Ă— Unbalanced (RCA: one direct, one filtered) |
| Input Sensitivity | 600 mV RMS for rated power |
| Input Impedance | 100 kΩ |
| Speaker Output Impedance | 4–8 Ω taps (rated at 6 Ω) |
| Frequency Response | 20 Hz – 20 kHz (±0.5 dB) |
| THD (at Max Power) | ~1% at 1 kHz |
| Signal-to-Noise Ratio | >90 dB (A-weighted) |
| Bias Adjustment | Manual, independent for each power tube |
| Power Consumption | 220 W max |
| Dimensions (W Ă— D Ă— H) | 260 Ă— 415 Ă— 200 mm |
| Weight | 18 kg |
| Power Supply | 117 V / 230 V / 245 V AC, 50–60 Hz (depending on region) |
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Looking for more details or availability info?
Use any of the contact options below, and we’ll get back to you promptly with the answers you need.
Monday – Friday: 8:30 AM – 5 PM
Saturday: 9 AM – 1:30 PM
Sunday: Closed